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Revista Chapingo serie ciencias forestales y del ambiente

versión On-line ISSN 2007-4018versión impresa ISSN 2007-3828

Rev. Chapingo ser. cienc. for. ambient vol.29 no.1 Chapingo ene./abr. 2023  Epub 23-Jun-2024

https://doi.org/10.5154/r.rchscfa.2022.03.021 

Scientific articles

Structural characterization and classification of pinyon pine forests in San Luis Potosí, Mexico

Joaquín Parra-Álvarez1 

Diódoro Granados-Sánchez*  1 

Ro L. Granados-Victorino2 

Antonio Villanueva-Morales1 

1División de Ciencias Forestales, Universidad Autónoma Chapingo, México. km 38.5 carretera México-Texcoco. C. P. 56230. Chapingo, Texcoco, Edo. México, México.

2Departamento de Preparatoria Agrícola, Área de Biología, Universidad Autónoma Chapingo. km 38.5 carretera México-Texcoco. C. P. 56230. Chapingo, Texcoco, Edo. México, México.


Abstract

Introduction:

Plant communities dominated by pinyon pines host abundant species, as they often form ecotones between temperate forests and desert shrublands.

Objectives:

To describe the floristic-structural attributes of pinyon pine forests in San Luis Potosí and to analyze the impact of some environmental factors on the characteristics of these associations.

Materials and methods:

Arboreal plants and shrub flora of nine sites was recorded and analyzed quantitatively using the point-centred quarter method, and qualitatively, using physiognomic profiles and Dansereau diagrams. The groups defined with Jaccard's similarity index were ordered with the environmental factors using a canonical correspondence analysis.

Results and discussion:

The floristic richness was 597 species including Pinus cembroides Zucc., Pinus pinceana Gordon. & Glend., Pinus nelsonii Shaw., Pinus discolor D. K. Bailey & Hawksw. and Pinus johannis Rob.-Pass., which form associations with Juniperus flaccida Schltdl., Yucca spp. and Quercus spp. The floristic similarity depends on several factors including altitude, slope, pH, organic matter and calcium in soil.

Conclusion:

Pinyon pine forests in San Luis Potosí are dominated by five species of Pinus with heterogeneous floristic composition, so each community should be managed according to specific ecological characteristics.

Keywords: Pinus; pinyon pine forests; plant physiognomy; environmental factors; multivariate analysis

Resumen

Introducción:

Las comunidades vegetales dominadas por pinos piñoneros albergan gran riqueza de especies, ya que, a menudo, forman ecotonos entre los bosques templados y matorrales desérticos.

Objetivos:

Describir los atributos florístico-estructurales de los bosques de pino piñonero de San Luis Potosí y analizar la influencia de algunos factores ambientales en las características de dichas asociaciones.

Materiales y métodos:

La flora arbórea y arbustiva de nueve localidades se registró y analizó de manera cuantitativa mediante el método de cuadrantes centrados en un punto, y de forma cualitativa, mediante perfiles fisonómicos y danserogramas. Los grupos definidos con el índice de similitud de Jaccard se ordenaron con los factores ambientales mediante un análisis de correspondencias canónicas.

Resultados y discusión:

La riqueza florística fue de 597 especies entre las que se encuentran Pinus cembroides Zucc., Pinus pinceana Gordon. & Glend., Pinus nelsonii Shaw., Pinus discolor D. K. Bailey & Hawksw. y Pinus johannis Rob.-Pass., las cuales forman asociaciones con Juniperus flaccida Schltdl., Yucca spp. y Quercus spp. La similitud florística se debe a varios factores entre los que destacan la altitud, pendiente, pH, materia orgánica y calcio del suelo.

Conclusión:

Los bosques piñoneros de San Luis Potosí están dominados por cinco especies de Pinus con una composición florística heterogénea, por lo que cada comunidad debe manejarse atendiendo las particularidades ecológicas que presenta.

Palabras clave: Pinus; piñonares; fisonomía vegetal; factores ambientales; análisis multivariado

Highlights:

  • The floristic richness of nine sites under study was 597 species (272 genera and 82 families).

  • At least five species of pinyon pine trees grow in San Luis Potosí, including Pinus nelsonii.

  • Pinyon pine species are related to Juniperus flaccida, Yucca and Quercus.

  • Altitude, slope, pH, organic matter and calcium in soil affect floristic similarity.

Introduction

Pinyon pine forests provide a variety of environmental services (Reyes-Carrera, Méndez-González, Nájera-Luna, & Cerano-Paredes, 2013) through the production of pinyon nuts, firewood and other non-timber forest products that are essential to the local economy; however, excessive resource overexploitation, especially intensive pinyon nuts harvesting and overgrazing, have caused the decline of these communities, drastically reducing their extent and diversity (Barrera-Zubiaga, Granados-Sánchez, Granados-Victorino, & Luna-Cavazos, 2018).

The State of San Luis Potosí is home to five species of pinyon pines, all with isolated distribution, confined to the highlands, ravines and intermountain plains, at elevations above 1 700 m (Pérez et al., 2019). One of these species is subject to special protection (Pinus johannis Rob.-Pass.) and two are considered endangered (Pinus nelsonii Shaw. and Pinus pinceana Gordon. & Glend.), due to low population density with restricted distribution, coupled with the high impact of human activities on the habitat (Secretaría de Medio Ambiente y Recursos Naturales [SEMARNAT], 2010), the most important are overgrazing by goats and cattle and the intense mining activity. Under this scenario, it is essential to describe the structure of these semiarid forests, as well as the factors that affect their dynamics, because this will allow the establishment of predictive models, management and sustainable use plans, as well as their conservation (Flake & Weisberg, 2019; Romero, Luna, & García, 2014).

The objective of this study was to describe the floristic-structural attributes of communities dominated by pinyon pine trees in San Luis Potosí and to determine the impact of environmental factors on these species.

Materials and methods

Floristic composition

Floristic composition was derived from floristic listings of the following studies: Hernández and García (1985); Suzán-Azpiri and Galarza (1987); Reyes-Agüero, González-Medrano, and García-Pérez (1996); Granados-Sánchez and Sánchez-González (2003); González, Giménez, García, and Aguirre (2007); Villarreal, Mares, Cornejo, and Capó (2009); Giménez and González (2011); Romero et al. (2014); Torres-Colín et al. (2017), and De-Nova, Castillo-Lara, Gudiño-Cano, and García-Pérez (2018). Species related to pinyon pine forests were selected and seasonal collections were made from September 2019 to March 2021 using the floristic sweep method (Barrera-Zubiaga et al., 2018) which consisted of walks, collection of specimens and herborization, for subsequent identification and deposit in the Herbarium CHAP de la División de Ciencias Forestales and in the Herbarium JES de la Preparatoria Agrícola, both of the Universidad Autónoma Chapingo. The nomenclature used for the species is that suggested by the Missouri Botanical Garden (Tropicos, 2021).

Structural characterization

Figure 1 shows the nine sites with pinyon pine forests in San Luis Potosí. The point-centred quarter method (Cottam & Curtis, 1956) was used at each site and 10 points were randomly selected at a distance of at least 20 m from each other. Individuals with arboreal or shrubby life form with height greater than 1 m were taken as reference. Diameter at breast height (DBH) of the stem of each individual was measured with a diameter tape (Forestry Suppliers, model 283D); in the case of individuals with multiple stems, all were measured and summed. The distance from the center point to the nearest tree was recorded for each quadrat with a measuring tape. The scientific name of the species was recorded, and its height was measured using a Haga hypsometer. With these data, the relative values of frequency, dominance and density of the species were estimated using the following equations:

Frequency (i) =Number of points with species (i)Total points* 100 Dominance = mean basal area per species * number of trees per species

Basal area was determined with the formula (π * dn2)/ 4 (Romahn & Ramírez, 2006). Density was defined as the total number of individuals of all species in one hectare, using the following formula: area/mean distance2 (Muller-Dombois & Ellenberg, 1974).

The above values were used to obtain the relative importance value (RIV), calculated using the formula proposed by Muller-Dombois and Ellenberg (1974): (relative frequency + relative density + relative dominance) / 3.

With the RIV, the most representative species and floristic associations of each site were defined. The arrangement of the most representative associations was described by physiognomic profiles (Richards, 1952) and Dansereau diagrams (Dansereau, 1957). The symbology used in these diagrams to describe the most representative characteristics by taxon is shown in Figure 2.

Figure 1 Study sites selected in the state of San Luis Potosí corresponding to the municipalities of Guadalcázar (a, e, i), Zaragoza (b and c), Catorce (d), Villa de Reyes (e), Charcas (f), Mexquitic de Carmona (g) and San Luis Potosí (h), based on the distribution of pinyon pine forests in Mexico (Instituto Nacional de Estadística y Geografía [ INEGI], 2021). 

Figure 2 Symbols for the structural and phenological description of plant species proposed by Dansereau. Modified from Rosas, Granados, Granados, and Esparza (2017). 

Environmental variables

Exposure, slope and altitude were recorded at each site. Samples of soil of nearly 1 kg were collected in paper bags for soil analysis. The samples were obtained from the first 10 cm after removing the leaflitter for subsequent analysis at the Central University Laboratory of the Soils Department of the Universidad Autónoma Chapingo. The following variables were determined in each sample: calcium (Ca), extracted in ammonium acetate at 1 N concentration at pH 7 in a soil-solution ratio 1:20 and determined by atomic absorption spectrophotometry; magnesium (Mg), obtained by atomic absorption spectrophotometry; potassium (K) extracted in ammonium acetate at 1 N concentration at pH 7 in a soil-solution ratio 1:20 and quantified by flame emission spectrophotometry; inorganic nitrogen (N), extracted with potassium chloride at 2 N concentration and determined by vapor entrainment; phosphorus (P), defined by Bray P-1 (Bray & Kurtz, 1945) and Olsen (Olsen & Sommers, 1982) extraction methods; pH, obtained by potentiometer with soil-water ratio 1:2; organic matter (OM), determined by the method of Walkley and Black (1934), and texture by a Bouyoucos hydrometer.

Multivariate statistical analysis

A clustering analysis was performed with binary attributes (presence-absence) of the species composing each locality. The clusters were defined with Jaccard's similarity index as a measure of distance and the Unweighted Pair-Group Method using Arithmetic averages (UPGMA) was used, with a cut-off level of 0.30 of the remaining information. Classification was performed with PAST software version 3.24 (Hammer, Harper, & Ryan, 2001).

The floristic composition was related to the environmental characteristics of the sites by a canonical correspondence analysis (Dhar & Sarker, 2021). The components that were correlated were floristic richness, sites and variables recorded in each site (physical and chemical properties of the soil, altitude and slope). This analysis was performed with CANOCO software version 4.56 (Ter Braak & Smilauer, 1998).

Results and Discussion

Floristic composition and structural characterization

The nine sites under study had a floristic richness of 597 species, grouped in 272 genera and 82 families (Appendix 1). The most representative families are Asteraceae with 45 genera and 81 species (13.6 %), Poaceae with 29/72 (12.1 %), Cactaceae with 18/69 (11.6 %); Fabaceae with 21/38 (6.4 %); Asparagaceae with 6/31 (5.2 %); Fagaceae with 1/24 (4.0 %) and Lamiaceae with 2/21 (3.5 %). The general characteristics and associations of each of the sites are described below.

Guadalcázar

The forest of this locality is located at coordinates 22° 37’ 01.8’’ N and 100° 29’ 20.8’’ W as centroid, at elevations of 1 600 to 1 774 m with northwest exposure; it has calcareous soils with scarce organic matter content. The forest showed the highest density of trees with 902 trees∙ha-1. An association of P. pinceana and Yucca potosina Rzed. was recorded, with the first species having the highest RIV (73.9 %). According to the Mexican Official Standard NOM-059-SEMARNAT-2010 (SEMARNAT, 2010), P. pinceana is in danger of extinction and its location is limited to the lower parts of the canyons, where they form small stands (Martínez-Ávalos et al., 2015). These species together with Rhus virens Lindh. ex A. Gray and Tecoma stans (L.) Juss. ex Kunth form the arboreal stratum with an average height between 1.8 and 3.3 m; in the shrub stratum, the most representative species were Agave striata Zucc., Dermatophyllum secundiflorum (Ortega) Gandhi y Reveal, and Forestiera reticulata Torr., as shown in Figure 3. In addition, this forest had the highest floristic richness with 363 species, 205 genera and 71 families.

Figure 3 Dansereau diagram and physiognomic profile of the pinyon pine forest of Guadalcázar. 11) Brahea decumbens, 2) Agave lechuguilla, 3) Muhlenbergia gracilis, 4) Dermatophyllum secundiflorum, 5) Pinus pinceana, 6) Echinocactus platyacanthus, 7) Tecoma stans, 8) Yucca potosina, 9) Opuntia rastrera, 10) Rhus virens and 11) Agave striata. The symbology for the structural and phenological description of the plant species is described in Figure 2

Salitrería

The flora includes 213 species, 128 genera and 48 families with a density of 402 trees∙ha-1 with arboreal habit. The predominant association is pinyon pine-oak, in which P. cembroides Zucc. is the species with the highest RIV (65.5 %) with Juniperus flaccida Schltdl. and Quercus spp. as companion species; the canopy has a height between 1.8 and 5.0 m. A similar association was described by Rosas et al. (2017) in Querétaro. The shrub stratum is formed by Arbutus xalapensis Kunth and Sophora secundiflora (Ortega) Lag. ex DC. that do not exceed 3 m. These pinyon pine forests are located at the geographic coordinates 21° 58’ 48.5’’ N and 100° 37’ 09.4’’ W with an altitudinal range of 1 987 to 2 038 m and a southeastern exposure in the municipality of Zaragoza.

El Ranchito

The pinyon pine forests of this locality are located at the coordinates 21° 57’ 27.6’’ N and 100° 37’ 44.4’’ W with elevations between 2 122 and 2 500 m. The tree vegetation is composed of J. flaccida, Quercus rugosa Née and P. cembroides, the latter having the highest RIV (43.3 %). These species form a dense canopy of 6 to 7 m height, while the shrub layer formed by Q. depressipes Trel., Q. deserticola Trel., Agave salmiana Otto ex Salm-Dyck and Dasylirion cedrosanum Trel. does not exceed 3 m height. The northwest exposure of the site favors higher humidity (Romero et al., 2014) and greater amount of organic matter compared to other exposures, due to the presence of larger tree species (Arres, Márquez, & Ramírez-García, 2012). The site is very rocky, where several rupicolous species of the Crassulaceae family, mosses, ferns and lichens develop, as well as abundant hay (Tillandsia spp.), which retains environmental moisture and provides it to the soil (Guevara, Rosales, & Sanoja, 2005). The forest density was low with 440 trees∙ha-1 and its floristic richness was 284 species, 174 genera and 68 families. It is important to mention that the area of the pinyon pine forest is decreasing because of mining activity (Errejón, Flores, Muñoz, & Reyes, 2017).

San José de Coronados

This place is located in the Sierra de Catorce. Its pinyon pine forests are located at coordinates 23° 35’ 20.7’’ N and 100° 54’ 30.5’’ W with an altitudinal range of 1 750 to 2 335 m. They grow on a steep slope with stony soil. A total of 296 plant species divided into 176 genera and 64 families were identified. The density is 394 trees∙ha-1, with P. cembroides being the most relevant species (RIV = 85.5 %) together with Yucca carnerosana (Trel.) McKelvey; this association was also reported Barrera-Zubiaga et al. (2018) in Zacatecas. The average canopy height is between 2.2 and 5.8 m. The shrub stratum is dominated by D. cedrosanum and typical xerophytic scrub species such as Echinocactus platyacanthus Link and Otto and Agave lechuguilla Torr.; the latter occupies a large part of the ground cover throughout the forest. The extent of this forest, as in El Ranchito, is decreasing due to mining activities (Barrera, 2013).

Calderón

It is located in the municipality of Villa de Reyes at coordinates 21° 51’ 27.9’’ N and 101° 02’ 09.4’’ W at an altitude between 2 073 and 2 154 m with eastern exposure, in a stony site with little soil. A total of 197 vascular plant species grouped in 120 genera and 43 families were recorded. The most relevant species is P. cembroides (RIV = 75.5 %), accompanied in the arboreal stratum by Quercus spp. and Y. carnerosana; canopy height varies between 1.5 and 3.6 m. In the shrub layer, the most common species were A. lechuguilla and D. cedrosanum. The community had the lowest tree and shrub density with 327 trees∙ha-1, because the perimeter region of the pine forest is used as a mining area for the extraction of stone material. Soil loss and, in some cases, forest fires caused by the regrowth of vegetation used as food for goat farming are evidence of the anthropogenic impact.

Picacho de Lajas

Located in the municipality of Charcas, pine forests develop on a stony site with scarce soil. This forest has the lowest tree stratum, between 0.8 and 2.7 m, dominated by P. johannis (Figure 4) reported in the area by García-Gómez, Ramírez-Herrera, Flores-López, and López-Upton (2014). The species branches from the base and is accompanied by Yucca decipiens Trel. and Quercus spp. The shrub layer is less dense; D. cedrosanum and A. lechuguilla are the most frequent species. The forest shows the lowest floristic richness with 168 species of 111 genera and 49 families, and a tree and shrub density of 417 trees∙ha-1; they are located at the geographic coordinates 23° 17’ 43’’ N and 101° 07’ 6’’ W, at an altitude of 2 200 to 2 472 m. Land use change was observed in the lower parts of the forest, mainly the establishment of A. lechuguilla plantations (Reyes-Agüero et al., 1996).

Figure 4 Dansereau diagram and physiognomic profile of the pine forest of Picacho de Lajas in the municipality of Charcas, San Luis Potosí. 1) Pinus johannis, 2) Yucca decipiens, 3) Agave lechuguilla, 4) Bouteloua curtipendula, 5) Dasylirion cedrosanum, 6) Stenocactus pentacanthus, 7) Agave schidigera, 8) Quercus depressipes and 9) Quercus cordifolia. The symbology for the structural and phenological description of the plant species is described in Figure 2

Guadalupe Victoria y la Cruz

Its pinyon pine forests are located at coordinates 22° 06’ 07.8’’ N and 101° 11’ 33.8’’ W at altitudes between 2 300 and 2 400 m in the municipality of Mexquitic de Carmona. The arboreal vegetation is composed of Yucca filifera Chabaud., Q. deserticola, P. cembroides and P. discolor D. K. Bailey & Hawksw.; the latter has the highest RIV (50.5 %) reported in the area by Romero-Manzanares and García-Moya (2002). The forests develop on a stony site with little soil, where the tree species form an open canopy between 1.7 and 5.0 m. The shrub layer is represented by A. salmiana and Dasylirion acrotrichum (Schiede) Zucc. Goat grazing was observed at this site, so the herbaceous stratum and regrowth of tree species are scarce, which may be the reason for the low floristic richness of 196 species, 127 genera and 44 families with a tree density of 511 trees∙ha-1.

La Amapola

The pine populations are located in the San Miguelito mountain range in the municipality of San Luis Potosí, at coordinates 22° 01’ 03’’ N y 10° 07’ 41’’ W, with a southwestern exposure and an altitude of 2 350 to 2 474 m. The topography is mountains with several slopes and a stony substratum of rhyolitic igneous material with little soil. The topography is mountainous and has diverse slopes and a stony substratum of rhyolitic igneous material, with little soil. The floristic richness is 187 species, grouped in 127 genera and 50 families, with a tree density of 775 trees∙ha-1. The tree stratum is dominated by P. johannis (RIV = 39.3 %) accompanied by P. cembroides and Y. decipiens that form an open canopy of between 1.5 and 3.7 m. Pinus johannis was reported in the area by Luna-Cavazos, Romero-Manzanares, and García-Moya (2008) and has a special protection status, according to NOM-059 (SEMARNAT, 2010). The shrub stratum is very poor; it consists of D. acrotrichum and some species of the genera Opuntia and Quercus. The herbaceous stratum is scarce, mainly due to overgrazing by goats, which also affects the regrowth of pinyon pine species.

El Realejo

Located in the municipality of Guadalcázar with a richness of 181 species, divided into 119 genera and 46 families, and a density of 863 trees∙ha-1. In the mountain range located at 22° 41’ 49’’ N and 100° 25’ 43’’ W as centroid, forests dominated by P. nelsonii develop in ravines that range from 2 000 to 2 158 m. This community is important because P. nelsonii is a species endemic to the northern region of the Sierra Madre Oriental of Mexico and is endangered according to NOM-089 (García-Aranda, Méndez-González, & Hernández-Arizmendi, 2018; SEMARNAT, 2010). This pine, together with Y. potosina, Quercus crassifolia Trel. and A. xalapensis form the tree stratum with a height between 1.8 and 5 m (Figure 5). The most representative species of the shrub layer are T. stans and R. virens. In this forest almost no regeneration of P. nelsonii was observed because of the constant disturbances generated by livestock, even though it is located in areas with difficult access.

Figure 5 Dansereau diagram and physiognomic profile of the pine forest of El Realejo, municipality of Guadalcázar, San Luis Potosí. 1) Pinus nelsonii, 2) Tecoma stans, 3) Jatropha dioica, 4) Quercus crassifolia, 5) Arbutus xalapensis, 6) Bouteloua scorpioides, 7) Sophora secundiflora, 8) Yucca potosina, 9) Agave salmiana, 10) Agave striata, 11) Brahea decumbens y and 12) Juniperus montícola. The symbology for the structural and phenological description of the plant species is described in Figure 2

Classification and management

Figure 6 shows the dendrogram generated from the floristic similarity grouping analysis, with a cut-off line of 0.30 of remaining information, showing three groups. The localities in the first group are dominated by P. cembroides or P. johannis and are found further north in the state, except for the locality of La Amapola, located to the southwest; these localities are distributed at higher altitudes (2 350 m) on slopes of 20 to 30 %, where soils have low Ca concentration, but are rich in K and N (Table 1). These localities have the greatest number of species typical of xerophilous scrub.

The second group consists of forests dominated by P. cembroides or P. pinceana (Figure 6), which grow in soils with slightly acid or neutral pH (6-7) with low concentrations of organic matter and calcium, but rich in K (Table 1). The forests develop in southwest exposure, except for El Ranchito, which is located in northwest exposure, which leads to the existence of P. pinceana pine species as mentioned by Villarreal et al. (2009) and Martínez-Ávalos et al. (2015).

Table 1. Soil physicochemical properties of pine communities in San Luis Potosí. 

Site Altitude (m) Slope (%) pH N P K Ca Mg OM Sand Silt Clay Texture
---------------------mg∙kg-1--------------------- -----------------%-----------------
G 1 703 20 7.95 18.42 24.17 506.5 11 582.0 451.0 14.75 57.5 21.8 20.7 Loamy
ERJ 2 079 30 7.11 48.13 2.34 408 13 946.2 697.1 19.83 61.0 29.0 10.0 Loamy
S 2 000 25 7.03 12.25 1.7 386.4 1 162.7 222.3 5.91 65.4 24.9 9.7 Sandy silt
ER 2 151 23 6.4 16.8 1.38 764.8 2 165.8 704.4 5.1 68.6 16.5 14.9 Sandy silt
SJC 2 338 31 8.02 16.14 17.84 256.2 8 426.2 205.6 8.71 54.3 33.8 11.7 Sandy silt
C 2 103 22 5.77 9.8 7.82 781.6 1 219.4 376.4 7.66 59.4 23.7 16.9 Sandy silt
PL 2 409 26 6.69 15.4 4.9 328.4 1 667.7 268.4 4.6 53.7 34.6 11.0 Sandy silt
GVYC 2 383 23 5.36 18.2 3.94 325.2 406.8 156.2 6.87 62.7 25.7 77.7 Sandy silt
LA 2 412 20 4.26 19.70 0.98 382.2 928.3 202.3 17.55 60.0 13.0 27.0 Sandy silt

OM = organic matter. Sites: G = Guadalcázar, ERJ = El Realejo, S = Salitrería, ER = El Ranchito, SJC = San José de Coronados, C = Calderón, PL = Picacho de Lajas, GVYC = Guadalupe Victoria y la Cruz, LA = La Amapola.

Figure 6 Dendrogram showing the hierarchical relationships of floristic similarity between sampling localities in San Luis Potosí. G = Guadalcázar, ERJ = El Realejo, S = Salitrería, ER = El Ranchito, SJC = San José de Coronados, C = Calderón, PL = Picacho de Lajas, GVYC = Guadalupe Victoria y la Cruz, LA = La Amapola.  

The third group is dominated by P. nelsonii, P. discolor and P. cembroides in association with Y. potosina and several oak species; they grow in slightly acidic to neutral soils (pH 5-7) and have a high organic matter content (Table 1). The forests of El Realejo develop in ravines, so it would be assumed that the greatest accumulation of nutrients occurs in the lower parts due to rainfall runoff, with high pH values due to the high concentration of calcium (Osman, 2013), since these forests develop on calcareous soils.

A canonical correspondence analysis was used to manage the pinyon pine forests (Figure 7), which recognizes the correlation between the floristic composition of each site and the environmental variables. Statistical values for the first three axes are shown in Table 2; the results suggest that the difference in floristic composition is mainly due to altitude, calcium, pH, organic matter, slope and texture (Table 2; Figure 7), a product of the physiography at the sites (Granados, Hernández, & López, 2012). These first three axes can explain 53.2 % of the variation among locations.

Table 2. Canonical correspondence analysis for the first three axes indicating the correlation between floristic composition and environmental variables of the sites studied in San Luis Potosí. 

Environmental variables Axis 1 Axis 2 Axis 3
Altitude (m) 0.778 0.441 -0.036
Slope (%) -0.042 0.819 -0.248
pH -0.746 0.486 0.080
N (mg∙kg-1) -0.428 -0.083 -0.454
P (mg∙kg-1) -0.514 0.227 -0.074
K (mg∙kg-1) -0.015 -0.541 0.470
Ca (mg∙kg-1) -0.825 0.173 -0.327
Mg (mg∙kg-1) -0.514 -0.327 0.351
OM (%) -0.527 -0.235 -0.636
Sand (%) -0.006 -0.479 0.382
Silt (%) 0.074 0.693 -0.280
Clay (%) 0.449 -0.362 -0.146
Total variance
Eigenvalues 0.332 0.255 0.208 Inercia total
Correlation species-environmental factors 1 1 1 1.496
Explained variance (%) 22.2 39.3 53.2

Figure 7 Canonical correspondence analysis of the nine sampling sites in the pinyon pine communities of San Luis Potosí. G = Guadalcázar, ERJ = El Realejo, S = Salitrería, ER = El Ranchito, SJC = San José de Coronados, C = Calderón, PL = Picacho de Lajas, GVYC = Guadalupe Victoria y la Cruz, LA = La Amapola.  

Soil characteristics are relevant to determine differences in the structure of a plant community (Barrera-Zubiaga et al., 2018; Granados, Granados, & Sánchez-González, 2015; Rosas et al., 2017). Based on the correlation of environmental variables (Table 3), it is highlighted that as altitude increases, the pH value decreases, whereas, at higher pH, Ca and P contents increase. On the other hand, the concentration of silt increases the steeper the slope, because it is not easily eroded by the wind, in addition to showing appreciable cohesion in dry soils.

Table 3 Correlation matrix between environmental variables of nine sampling sites in the pine communities of San Luis Potosí. 

Altitude Slope pH N P K Ca Mg OM Sand Silt Clay
Altitude 1
Slope 0.44 1
pH -0.52 0.40 1
N -0.07 0.37 0.10 1
P -0.54 -0.08 0.71 -0.15 1
K -0.37 -0.52 -0.22 -0.19 -0.16 1
Ca -0.54 0.27 0.73 0.62 0.66 -0.20 1
Mg -0.43 -0.08 0.16 0.50 -0.11 0.66 0.37 1
OM -0.36 -0.07 0.10 0.70 0.29 -0.17 0.71 0.23 1
Sand -0.09 -0.28 -0.39 0.02 -0.63 0.54 -0.41 0.46 -0.26 1
Silt 0.30 0.78 0.49 0.12 0.22 -0.63 0.26 -0.37 -0.17 -0.65 1
Clay 0.26 -0.32 -0.49 -0.07 -0.11 -0.18 -0.31 -0.36 -0.08 0.14 -0.14 1

OM: Organic matter

Conclusions

Pinyon pine forests in San Luis Potosí host a floristic richness of 597 species and have three physiognomic-structural variants (pinyon-Yucca spp., pinyon-Quercus spp. and pinyon-Juniperus flaccida) with five pinyon pine species (Pinus cembroides, P. pinceana, P. nelsonii, P. discolor and P. johannis). The associations and floristic composition of each site are determined by altitude, slope, pH, organic matter and soil calcium, so each of the communities must be managed differently, taking into account the particular requirements of the species that develop there. Furthermore, the results of this study can be useful for the design of reforestation strategies, as well as payments for environmental services.

Acknowledgments

The authors thank the Consejo Nacional de Ciencia y Tecnología (CONACYT) for the grant and to Ing. Darío Cagal Carbajal and Ing. Melanie Espinosa Ramírez for their help during field sampling.

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Appendix

Appendix 1 Floristic composition of pinyon pine forests in San Luis Potosí. Study sites: G = Guadalcázar, ERJ = El Realejo, S = Salitrería, ER = El Ranchito, SJC = San José de Coronados, C = Calderón, PL = Picacho de Lajas, GVYC = Guadalupe Victoria y la Cruz, y A = La Amapola. 

Family Species G ERJ S ER SJC C PL GVYC LA
Acanthaceae Carlowrightia haplocarpa B. L. Rob. & Greenm. 1 0 0 0 0 0 0 0 0
Acanthaceae Jacobinia mexicana Seem. 1 1 0 0 0 0 0 0 0
Acanthaceae Stenandrium dulce (Cav.) Nees 1 1 0 1 1 0 1 0 0
Amaranthaceae Celosia palmeri S. Watson 1 0 0 0 0 0 0 0 0
Amaranthaceae Dysphania graveolens (Willd.) Mosyakin & Clemants 0 0 0 0 0 0 1 0 0
Amaranthaceae Gomphrena serrata L. 1 1 0 1 0 1 0 1 0
Amaryllidaceae Allium glandulosum Link & Otto 1 1 0 1 0 1 1 1 1
Anacampserotaceae Talinopsis frutescens A. Gray 0 0 0 1 1 0 0 0 0
Anacardiaceae Pistacia mexicana Kunth 1 0 0 0 0 0 0 0 0
Anacardiaceae Rhus aromatica var. schmidelioides (Schlecht.) Engl. 1 1 0 0 0 0 0 0 0
Anacardiaceae Rhus aromatica var. trilobata (Nutt.) A. Gray 1 0 0 0 1 0 0 0 0
Anacardiaceae Rhus pachyrrhachis Hemsl. 1 1 1 0 1 1 0 0 0
Anacardiaceae Rhus trilobata Nutt. 0 0 1 0 0 0 1 0 0
Anacardiaceae Rhus virens Lindh. ex A. Gray 1 1 0 1 1 0 0 0 1
Apiaceae Prionosciadium palmeri Rose 0 0 0 1 0 0 0 0 0
Apiaceae Rhodosciadium argutum (Rose) Mathias & Constance 0 0 0 1 0 0 0 0 0
Apocynaceae Asclepias linaria Cav. 1 0 1 1 1 1 1 1 1
Apocynaceae Mandevilla karwinskii (Müll. Arg.) Hemsl. 1 0 0 0 1 0 0 0 0
Apocynaceae Matelea suberifera (B. L. Rob.) W. D. Stevens 0 0 0 1 0 0 0 0 0
Apocynaceae Telosiphonia hypoleuca (Benth.) Henrickson 1 0 0 0 0 1 0 0 0
Araliaceae Aralia regeliana Marchal 1 1 0 1 1 0 0 0 0
Arecaceae Brahea decumbens Rzed. 1 1 0 1 0 0 0 0 1
Aristolochiaceae Aristolochia nana S. Watson 1 0 0 1 0 0 0 0 0
Asparagaceae Agave asperrima subsp. potosiensis (Gentry) B. Ullrich 0 0 0 1 0 0 0 1 0
Asparagaceae Agave filifera Sal-Dyck 0 1 1 1 1 0 1 0 1
Asparagaceae Agave garciae-mendozae Galván & L. Hern. 1 0 0 0 0 0 0 0 0
Asparagaceae Agave gentryi B. Ullrich 1 1 1 0 1 0 0 1 0
Asparagaceae Agave lechuguilla Torr. 1 1 1 1 1 1 1 1 1
Asparagaceae Agave mitis Salm-Dyck. 0 0 1 1 0 0 0 0 0
Asparagaceae Agave parrasana Berger 0 0 0 0 0 1 0 1 0
Asparagaceae Agave salmiana Otto ex Salm-Dyck var. salmiana 0 0 1 1 1 1 0 1 1
Asparagaceae Agave salmiana subsp. crassispina (Trel. ex LH Bailey) Gentry 1 1 0 0 1 0 1 0 0
Asparagaceae Agave schidigera Lem. 0 1 1 0 0 1 0 1 1
Asparagaceae Agave striata subsp. falcata (Engelm.) Gentry 0 0 0 0 1 0 0 0 0
Asparagaceae Agave striata subsp. striata (Salm-Dyck) B. Ullrich 1 0 0 0 0 0 0 0 0
Asparagaceae Agave striata Zucc. 1 1 1 0 1 0 1 0 1
Asparagaceae Dasylirion acrotrichum (Schiede) Zucc. 1 0 1 1 1 1 1 1 1
Asparagaceae Dasylirion cedrosanum Trel. 1 1 1 1 1 1 1 0 0
Asparagaceae Dasylirion longissimum Lem. 1 1 1 0 1 0 0 0 1
Asparagaceae Dasylirion longistylum J. F. Macbr. 1 0 1 0 0 0 0 0 0
Asparagaceae Dasylirion palaciosii Rzed. 1 1 0 1 0 0 0 0 0
Asparagaceae Dasylirion parryanum Trel. 0 0 0 0 1 1 0 1 0
Asparagaceae Dasylirion texanum Scheele 0 1 0 0 0 0 0 0 1
Asparagaceae Echeandia flavescens (Schult. & Schult. f.) Cruden 1 0 1 0 0 1 1 1 1
Asparagaceae Echeandia mexicana Cruden 0 0 0 1 0 1 0 1 1
Asparagaceae Milla biflora Cav. 1 0 0 0 0 0 0 1 1
Asparagaceae Milla potosina T. M. Howard 1 1 0 0 0 0 0 0 0
Asparagaceae Nolina cespitifera Trel. 1 1 1 1 0 1 0 1 1
Asparagaceae Nolina texana S. Watson 0 0 1 1 1 1 1 0 0
Asparagaceae Nolina watsoni (Baker) Hemsl. 0 0 1 1 0 0 0 1 0
Asparagaceae Yucca carnerosana (Trel.) McKelvey 1 1 1 1 1 1 1 1 1
Asparagaceae Yucca decipiens Trel. 1 0 1 1 1 1 1 1 0
Asparagaceae Yucca filifera Chabaud 1 1 1 1 1 1 1 1 1
Asparagaceae Yucca potosina Rzed. 1 1 1 1 0 0 0 0 0
Asphodelaceae Asphodelus fistulosus L. 1 1 1 1 1 0 1 1 1
Aspleniaceae Asplenium monanthes L. 1 0 0 1 0 0 0 0 0
Aspleniaceae Asplenium resiliens Kunze 1 0 0 1 1 0 0 0 0
Asteraceae Acourtia oxylepis (A. Gray) Reveal & R. M. King 0 0 1 0 0 1 0 0 0
Asteraceae Acourtia potosina R. L. Cabrera 0 0 0 1 0 0 0 1 1
Asteraceae Acourtia runcinata (D. Don) B. L. Turner 1 1 1 1 0 0 0 0 0
Asteraceae Ageratina calaminthifolia (Kunth) R. M. King et H. Rob. 1 1 0 0 0 0 0 0 0
Asteraceae Ageratina calophylla (Greene) Molinari & Mayta 1 0 0 0 1 0 0 0 1
Asteraceae Ageratina espinosarum (A. Gray) R. M. King & H. Rob. var. espinosarum 0 1 0 0 1 0 0 0 0
Asteraceae Ageratina espinosarum (A. Gray) R. M. King & H. Rob. 1 1 0 1 1 0 0 0 0
Asteraceae Ageratina saltillensis (B. L. Rob.) R. M. King & H. Rob. 0 0 1 1 1 0 0 0 1
Asteraceae Ageratina scorodonioides (A. Gray) R. M. King & H. Rob. 0 1 1 0 1 0 0 0 0
Asteraceae Ageratum corymbosum Zuccagni 1 0 1 0 1 1 1 1 1
Asteraceae Aldama cordifolia (A. Gray) E. E. Schill. & Panero 1 0 1 1 1 0 1 0 0
Asteraceae Aster subulatus Michx. 0 1 0 0 1 0 1 0 1
Asteraceae Baccharis occidentalis S. F. Blake 0 0 0 0 0 1 0 1 1
Asteraceae Baccharis pteronioides DC. 0 0 0 1 0 0 1 0 0
Asteraceae Bidens odorata Cav. 0 1 0 1 0 1 1 1 0
Asteraceae Bidens odorata Cav. var. odorata 1 0 0 0 0 0 0 0 0
Asteraceae Bidens pilosa L. 1 0 0 0 0 0 0 0 0
Asteraceae Brickellia veronicifolia (Kunth) A. Gray 0 1 1 1 0 1 1 1 1
Asteraceae Chaetopappa bellioides (A. Gray) Shinners 1 1 0 0 1 0 0 1 0
Asteraceae Chaetopappa ericoides (Torr.) G. L. Nesom. 0 0 0 0 0 1 0 1 1
Asteraceae Chaptalia lyratifolia Burkart 1 1 1 1 0 0 0 0 0
Asteraceae Chrysactinia mexicana A. Gray 1 1 0 1 1 0 1 0 1
Asteraceae Chrysactinia pinnata S. Watson 1 0 0 1 0 0 0 0 0
Asteraceae Coleosanthus thyrsiflorus (A. Gray) Kuntze 0 0 0 0 0 1 0 1 0
Asteraceae Critoniopsis obtusa (Gleason) H. Rob. 0 0 0 0 1 0 0 0 0
Asteraceae Dahlia coccinea Cav. 0 0 0 1 0 1 0 1 1
Asteraceae Dahlia dissecta S. Watson 1 0 0 1 0 0 0 0 0
Asteraceae Dahlia sublignosa (P. D. SØrensen) Saar & P. D. Sorensen 1 0 0 0 0 0 0 0 0
Asteraceae Dyssodia papposa (Vent.) Hitch. 0 0 1 1 1 1 1 1 1
Asteraceae Dyssodia pinnata (Cav.) B. L. Rob. 0 0 0 1 1 0 1 0 0
Asteraceae Dyssodia pinnata var. glabrescens Strother 1 1 0 0 0 0 0 0 1
Asteraceae Erigeron longipes DC. 1 1 0 1 0 1 0 1 0
Asteraceae Galinsoga parviflora Cav. 0 0 1 1 0 0 1 1 0
Asteraceae Gochnatia hypoleuca (DC.) A. Gray 1 1 0 0 1 0 0 0 1
Asteraceae Grindelia palmeri Steyerm. 1 1 0 1 0 0 0 0 1
Asteraceae Gutierrezia microcephala (DC.) A. Gray 0 0 1 1 1 0 0 0 0
Asteraceae Gutierrezia sarothrae (Pursh) Britton & Rusby 0 0 0 1 0 1 0 1 1
Asteraceae Gutierrezia texana (DC.) Torr. & A. Gray 1 1 1 1 1 0 0 0 0
Asteraceae Gymnosperma glutinosum (Spreng.) Less. 1 0 0 1 1 1 1 1 1
Asteraceae Heterosperma pinnatum Cav. 1 0 0 1 0 0 1 1 1
Asteraceae Jefea gnaphalioides (A. Gray) Strother 1 0 0 1 1 0 0 0 0
Asteraceae Jefea lantanifolia (S. Schauer) Strother 1 1 0 1 0 0 0 0 0
Asteraceae Lessingianthus obtusatus (Less.) H. Rob. 0 0 0 0 1 0 0 0 0
Asteraceae Melampodium sericeum Lag. 1 0 1 1 0 0 0 0 0
Asteraceae Parthenium rollinsianum Rzed. 1 1 1 0 0 0 0 0 0
Asteraceae Perymenium cornutum Brandegee 1 0 0 0 0 0 0 0 1
Asteraceae Perymenium mendezii DC. 0 0 0 1 0 1 1 1 1
Asteraceae Pinaropappus roseus (Less.) Less. 1 0 1 1 1 0 1 0 0
Asteraceae Piqueria trinervia Cav. 1 1 0 1 1 1 0 1 1
Asteraceae Porophyllum filiforme Rydb. 1 1 0 0 1 0 0 0 0
Asteraceae Porophyllum linaria (Cav.) DC. 1 0 0 1 0 0 0 0 0
Asteraceae Sanvitalia procumbens Lam. 0 0 0 1 1 0 0 0 0
Asteraceae Sclerocarpus uniserialis (Hook.) Benth. & Hook. f. & Hemsl. 1 1 0 1 0 0 0 0 0
Asteraceae Senecio alvarezensis Greenm. 1 0 0 1 0 0 0 0 0
Asteraceae Solidago simplex Kunth 1 0 0 0 0 0 0 0 0
Asteraceae Stevia berlandieri A. Gray 1 1 0 1 0 0 0 0 0
Asteraceae Stevia eupatoria (Spreng.) Willd. 0 0 0 1 1 0 1 0 0
Asteraceae Stevia lucida Lag. 0 1 1 0 1 1 0 1 1
Asteraceae Stevia micrantha Lag. 1 0 1 0 1 0 0 0 0
Asteraceae Stevia ovata var. reglensis (Benth.) Grashoff 1 0 0 0 0 0 0 0 0
Asteraceae Stevia ovata Willd. 0 0 1 0 1 0 0 0 0
Asteraceae Stevia ovata Willd. var. ovata 1 0 0 0 0 0 0 0 0
Asteraceae Stevia salicifolia Cav. 1 0 1 1 1 1 1 1 0
Asteraceae Stevia serrata Cav. 0 0 0 1 1 0 0 1 1
Asteraceae Stevia serrata Cav. var. serrata 1 0 0 0 0 0 0 0 0
Asteraceae Stevia tomentosa Kunth 0 0 0 0 0 1 0 1 0
Asteraceae Stevia viscida Kunth 1 1 0 1 0 1 0 1 1
Asteraceae Tagetes micrantha Cav. 0 0 1 0 0 1 1 1 1
Asteraceae Tagetes parryi A. Gray 0 0 0 1 0 0 0 0 0
Asteraceae Thelesperma longipes A. Gray 1 1 0 0 0 0 0 0 1
Asteraceae Thymophylla setifolia Lag. 1 0 1 0 0 0 0 0 0
Asteraceae Trixis angustifolia DC. 1 1 1 0 1 1 0 1 1
Asteraceae Verbesina coulteri A. Gray 0 0 0 1 0 0 1 0 0
Asteraceae Verbesina longipes Hemsl. 1 0 0 0 1 1 0 0 0
Asteraceae Verbesina sororia A. Gray 1 0 1 0 0 0 0 0 0
Asteraceae Vernonia greggii A. Gray 1 1 0 1 1 0 0 0 0
Asteraceae Viguiera dentata (Cav.) Spreng. 1 1 0 1 1 0 0 0 0
Asteraceae Zaluzania triloba (Ortega) Pers. 1 0 0 1 1 1 0 0 0
Asteraceae Zexmenia fasciculata (DC.) Sch. Bip. 0 0 0 0 0 0 1 0 0
Asteraceae Zinnia juniperifolia (DC.) A. Gray 1 0 1 0 1 0 1 0 0
Asteraceae Zinnia peruviana (L.) L. 1 0 0 1 1 1 0 1 0
Berberidaceae Berberis trifoliolata Mori. 1 1 0 1 1 1 0 1 1
Bignoniaceae Chilopsis linearis (Cav.) Sweet 0 1 0 0 0 0 0 0 0
Bignoniaceae Tecoma stans (L.) Juss. ex Kunth 1 1 1 0 0 1 0 0 1
Boraginaceae Antiphytum heliotropioides A. DC. 1 1 0 1 1 0 0 0 0
Brassicaceae Halimolobos lasioloba O. E. Schulz 0 0 0 0 1 0 0 0 0
Brassicaceae Halimolobos palmeri O. E. Schulz 0 0 0 0 1 0 1 0 1
Brassicaceae Halimolobos rigidus Rollins 0 0 0 0 1 0 0 0 0
Brassicaceae Physaria argyraea (A. Gray) O'Kane & Al-Shehbaz 0 0 1 1 0 1 0 1 1
Brassicaceae Sphaerocardamum divaricatum (Rollins) Rollins 0 0 0 0 1 0 1 0 0
Bromeliaceae Hechtia glomerata Zucc. 1 1 1 1 1 1 0 1 1
Bromeliaceae Hechtia podantha Mez. 1 1 1 0 0 0 0 0 0
Bromeliaceae Hechtia texensis S. Watson 1 0 0 0 0 0 0 0 1
Bromeliaceae Tillandsia erubescens Schltdl. 1 0 0 1 1 0 1 0 0
Bromeliaceae Tillandsia recurvata (L.) L. 1 1 0 1 1 1 1 1 1
Bromeliaceae Tillandsia suesilliae W. Till, López-Ferr. & Espejo 0 0 0 1 0 0 0 0 0
Bromeliaceae Tillandsia usneoides (L.) L. 1 1 0 1 1 0 1 1 1
Burseraceae Bursera fagaroides (Kunth) Engl. 1 0 1 1 1 1 0 1 1
Burseraceae Bursera schlechtendalii Engl. 1 0 1 0 0 0 0 0 0
Cactaceae Ariocarpus agavoides (Castañeda) E.F. Anderson 1 1 1 1 0 0 0 0 0
Cactaceae Ariocarpus bravoanus H. M. Hern. & E. F.Anderson 1 0 0 1 0 0 0 0 0
Cactaceae Ariocarpus bravoanus subsp. hintonii (Stuppy & N. P. Taylor) F. Anderson & Fitz Maurice 0 0 0 0 1 0 0 0 0
Cactaceae Ariocarpus trigonus (F. A. C. Weber) K. Schum. 1 0 0 1 0 0 0 0 0
Cactaceae Astrophytum capricorne (A. Dietr.) Britton & Rose 1 1 0 0 1 0 0 0 0
Cactaceae Coryphantha delicata L. Bremer 0 0 0 0 0 1 0 0 0
Cactaceae Coryphantha georgii Boed. 1 1 0 1 0 0 0 0 0
Cactaceae Coryphantha macromeris (Engelm.) Lem. 0 0 0 0 1 0 0 0 1
Cactaceae Coryphantha potosiana (Jacobi) Glass & R. A. Foster 0 0 0 0 0 0 0 1 1
Cactaceae Coryphantha pulleineana (Backeb.) Glass 1 0 0 0 0 0 0 0 0
Cactaceae Coryphantha wohlschlageri Holzeis 1 1 0 0 0 0 0 0 0
Cactaceae Cumarinia odorata (Boed.) Buxb. 1 0 1 0 0 0 0 0 0
Cactaceae Cylindropuntia imbricata (Haw.) F. M. Knuth 1 1 1 0 1 1 0 1 1
Cactaceae Cylindropuntia leptocaulis (DC.) F. M. Knuth 1 1 1 0 0 1 0 0 0
Cactaceae Echinocactus platyacanthus Link & Otto 1 1 1 1 1 0 1 1 1
Cactaceae Echinocereus knippelianus Liebner 1 0 1 1 0 0 0 0 1
Cactaceae Echinocereus parkeri N. P. Taylor 1 0 1 0 0 0 0 0 0
Cactaceae Echinocereus pectinatus (Scheidw.) Engelm. 1 1 1 1 0 1 1 1 1
Cactaceae Echinocereus pectinatus (Scheidw.) Engelm. subsp. pectinatus 0 0 0 0 1 1 0 0 0
Cactaceae Echinocereus pentalophus (DC.) Lem. 1 0 1 1 1 0 0 1 0
Cactaceae Ferocactus echidne (DC.) Britton & Rose 1 0 1 0 0 0 0 0 1
Cactaceae Ferocactus glaucescens (DC.) Britton & Rose 1 0 1 0 0 0 0 0 0
Cactaceae Ferocactus histrix (DC.) G. E. Linds. 1 1 1 1 1 1 0 1 1
Cactaceae Ferocactus latispinus (Haw.) Britton & Rose 1 1 1 1 1 1 1 1 1
Cactaceae Ferocactus pilosus (Galeotti) Werderm. 1 0 1 0 1 0 1 0 0
Cactaceae Glandulicactus uncinatus (Galeotti ex Pfeiff.) Backeb. 0 0 1 1 0 0 1 0 0
Cactaceae Mammillaria albicoma Boed. 1 0 1 0 0 0 0 0 0
Cactaceae Mammillaria crinita subsp. leucantha (Boed.) D. R. Hunt 1 0 0 0 0 1 0 0 0
Cactaceae Mammillaria erythrosperma Boed. 0 0 0 1 0 0 0 0 0
Cactaceae Mammillaria geminispina Haw. 1 0 1 1 0 0 0 0 0
Cactaceae Mammillaria heyderi Muehlenpf. 1 1 1 0 1 0 0 0 1
Cactaceae Mammillaria klissingiana Boed. 1 0 1 1 0 0 0 0 0
Cactaceae Mammillaria lloydii (Britton & Rose) Orcutt 0 0 0 0 1 1 0 0 0
Cactaceae Mammillaria magnimamma Haw. 1 1 0 0 0 1 0 1 1
Cactaceae Mammillaria muehlenpfordtii C. F. Först. 0 0 0 1 0 1 1 0 0
Cactaceae Mammillaria nana Backeb. 0 0 0 0 0 1 1 0 0
Cactaceae Mammillaria orcuttii Boed. 0 0 0 1 0 1 0 1 1
Cactaceae Mammillaria picta Meinsh. 1 0 0 0 0 0 0 0 0
Cactaceae Mammillaria pilispina J. A. Purpus 1 1 1 0 0 0 0 0 0
Cactaceae Mammillaria schiedeana subsp. dumetorum (J. A. Purpus) D. R. Hunt 1 0 0 0 0 0 0 0 0
Cactaceae Mammillaria uncinata Zucc. ex Pfeiff. 1 0 0 0 0 1 1 1 1
Cactaceae Mammilloydia candida (Scheidw.) Buxb. 1 0 1 0 1 0 1 1 1
Cactaceae Myrtillocactus geometrizans (Mart. ex Pfeiff.) Console 1 0 1 1 1 1 0 1 1
Cactaceae Neolloydia conoidea (DC.) Britton & Rose 1 0 1 0 1 0 1 1 0
Cactaceae Opuntia cantabrigiensis Lynch 0 0 0 0 1 0 1 0 0
Cactaceae Opuntia engelmannii Salm-Dyck ex Engelm. 1 0 1 0 1 1 0 1 0
Cactaceae Opuntia engelmannii var. cuija Griffiths & Hare 0 0 0 0 1 0 0 0 0
Cactaceae Opuntia imbricata (Haw.) DC. 1 1 1 0 1 1 1 0 1
Cactaceae Opuntia lasiacantha Pfeiff. 1 0 1 1 0 1 0 1 0
Cactaceae Opuntia megarhiza Rose 1 0 0 1 0 0 0 0 0
Cactaceae Opuntia megarhiza subsp. pachyrrhiza (H.M. Hern., Gomez-Hin. & Barcenas) U. Guzmán & Mandujano 1 0 0 0 0 0 0 0 0
Cactaceae Opuntia rastrera F. A. C. Weber 1 1 1 1 1 1 1 1 1
Cactaceae Opuntia robusta H. Wendl. ex Pfeiff. 1 0 1 1 1 1 1 1 1
Cactaceae Opuntia stenopetala Engelm. 1 1 0 0 1 1 1 1 0
Cactaceae Opuntia streptacantha Lem. 1 1 1 0 1 1 1 1 1
Cactaceae Opuntia tomentosa Salm-Dyck 1 0 1 0 0 1 0 0 1
Cactaceae Pelecyphora pseudopectinata Backeb. 0 1 0 0 0 0 0 0 0
Cactaceae Stenocactus dichroacanthus (Mart.) A. Berger ex Backeb. & F. M. Knuth 0 0 1 0 1 1 0 0 0
Cactaceae Stenocactus pentacanthus (Lem.) Berger ex Backeb. & Knuth 0 0 1 1 0 1 1 1 1
Cactaceae Stenocereus griseus (Haw.) Buxb. 1 1 0 0 0 0 0 0 0
Cactaceae Thelocactus conothelos (Regel & Klein bis) F. M. Knuth 0 0 1 0 0 0 0 0 0
Cactaceae Thelocactus conothelos subsp. flavus (Mosco & Zanov.) Mosco & Zanov. 1 0 0 0 0 0 0 0 0
Cactaceae Thelocactus panarottoanus Halda 1 0 0 0 0 0 0 0 0
Cactaceae Thelocactus tulensis (Poselg.) Britton & Rose 1 0 1 0 1 0 0 0 0
Cactaceae Turbinicarpus pseudopectinatus (Backeb.) Glass & R. A. Foster 1 0 1 0 0 0 0 0 0
Cactaceae Turbinicarpus schmiedickeanus (Boed.) Buxb. & Backeb. 1 0 1 0 1 0 0 0 0
Cactaceae Turbinicarpus schmiedickeanus subsp. andersonii Mosco 1 1 0 0 0 0 0 0 0
Cactaceae Turbinicarpus schmiedickeanus subsp. flaviflorus (G. Frank & A. B. Lau) Glass & R. A. Foster 1 0 0 0 0 0 0 0 0
Cactaceae Turbinicarpus viereckii (Werderm.) John & Ríha 1 1 0 0 0 0 0 0 0
Caprifoliaceae Abelia coriacea Hemsl. 1 1 1 0 0 0 0 0 0
Caprifoliaceae Valeriana albonervata B. L. Rob. 1 0 0 1 0 1 1 0 0
Caryophyllaceae Arenaria lycopodioides Willd. ex D. F. K. Schltdl. 1 0 0 0 1 1 1 1 1
Caryophyllaceae Cardionema ramosissimmum (Weinm.) A. Nelson & J. F. Macbr. 0 0 0 0 0 1 0 1 0
Caryophyllaceae Cerdia virescens Moç. & Sessé ex DC. 0 0 0 0 0 1 0 1 1
Caryophyllaceae Drymaria arenarioides Humb. & Bonpl. ex Schult. 0 0 0 1 1 1 1 1 0
Caryophyllaceae Drymaria villosa Schltdl. & Cham. 1 0 0 0 0 1 1 1 1
Caryophyllaceae Paronychia mexicana Hemsl. 1 0 1 0 0 0 1 1 1
Celastraceae Orthosphenia mexicana Standl. 1 1 1 1 1 0 0 0 0
Cistaceae Helianthemum glomeratum (Lag.) Lag. 1 0 0 1 1 1 1 1 1
Cistaceae Helianthemum patens Hemsl. 0 0 0 1 0 1 1 1 1
Commelinaceae Commelina dianthifolia Delile 1 0 0 0 0 1 1 1 1
Commelinaceae Commelina erecta L. 1 0 0 1 0 0 1 1 1
Commelinaceae Commelina erecta var. angustifolia (Michx.) Fern. 0 0 0 0 1 0 0 0 0
Commelinaceae Commelina tuberosa L. 0 0 0 1 0 1 0 1 0
Commelinaceae Gibasis karwinskyana (Schult. f.) Rohweder 1 0 0 1 0 0 0 0 1
Commelinaceae Gibasis linearis (Benth.) Rohweder 0 1 1 0 1 1 0 1 0
Commelinaceae Gibasis pulchella (Kunth) Raf. 0 0 0 0 0 1 0 1 0
Commelinaceae Tradescantia brachyphylla Greenm. 1 0 0 0 0 0 0 0 0
Commelinaceae Tradescantia crassifolia Cav. 1 0 0 1 1 0 1 1 1
Commelinaceae Tradescantia nuevoleonensis Matuda 1 0 0 1 0 1 0 0 0
Convolvulaceae Cuscuta applanata Engelm. 0 0 0 0 1 0 0 1 0
Convolvulaceae Cuscuta glabrior (Engelm.) Yunck. 0 0 0 0 1 0 0 0 1
Convolvulaceae Dichondra argentea Humb. & Bonpl. ex Willd. 1 0 0 1 1 1 1 1 1
Convolvulaceae Evolvulus alsinoides (L.) L. 0 0 0 1 0 1 0 1 0
Convolvulaceae Ipomoea orizabensis (Pelletan) Ledeb. ex Steud. var. orizabensis 1 0 0 1 0 0 0 0 0
Convolvulaceae Ipomoea purpurea (L.) Roth 1 0 0 1 1 1 0 1 1
Convolvulaceae Ipomoea sescossiana Baill. 0 0 0 1 1 0 0 0 0
Convolvulaceae Ipomoea stans Cav. 1 0 1 1 1 1 1 1 1
Cornaceae Cornus disciflora Moc. & Sessé ex DC. 1 0 0 1 1 0 0 0 0
Crassulaceae Echeveria coccinea (Cav.) DC. 0 0 0 0 1 0 0 1 0
Crassulaceae Echeveria humilis Rose 0 0 0 1 0 0 0 0 1
Crassulaceae Echeveria lutea Rose 1 1 0 1 0 0 0 0 0
Crassulaceae Echeveria mucronata Schltdl. 0 0 0 1 1 0 1 1 0
Crassulaceae Echeveria palmeri Rose 0 0 0 1 0 0 0 0 0
Crassulaceae Echeveria schaffneri (S. Watson) Rose 1 0 0 0 0 1 0 0 1
Crassulaceae Echeveria walpoleana Rose 1 0 0 1 0 0 0 0 0
Crassulaceae Sedum catorce G. L. Nesom 0 0 0 1 1 0 0 0 0
Crassulaceae Sedum diffusum S. Watson 0 0 0 1 0 0 0 0 0
Crassulaceae Sedum furfuraceum Moran 0 0 0 1 0 1 0 1 0
Crassulaceae Sedum retusum Hemsl. 0 0 0 1 0 1 0 1 0
Crassulaceae Villadia aristata Moran 0 0 1 1 0 0 1 0 0
Crassulaceae Villadia cucullata Rose 1 0 1 0 0 1 0 0 0
Crassulaceae Villadia patula Moran & C. H. Uhl 0 0 0 1 0 0 0 0 0
Cucurbitaceae Apodanthera undulata A. Gray 0 0 1 0 0 0 1 0 0
Cucurbitaceae Ibervillea tenuisecta (A. Gray) Small 1 0 0 1 1 0 0 0 1
Cupressaceae Cupressus arizonica Greene var. arizonica 0 0 1 1 1 0 0 0 1
Cupressaceae Juniperus flaccida Schltdl. 1 0 1 1 0 0 0 0 0
Cupressaceae Juniperus monticola Martínez 0 1 0 0 0 0 0 0 0
Cupressaceae Juniperus sabinoides (Kunth) Nees 0 0 0 0 1 0 0 0 0
Cyperaceae Carex schiedeana Kuntze 1 1 1 1 1 0 1 0 0
Cyperaceae Cyperus seslerioides Kunth 0 0 0 1 0 1 1 1 1
Cyperaceae Cyperus spectabilis Link 0 1 0 0 0 1 1 1 1
Ebenaceae Diospyros texana Scheele 1 1 0 0 0 0 0 0 0
Ehretiaceae Tiquilia hispidissima (Torr. & A. Gray) A. T. Richardson 1 0 1 0 0 0 0 0 0
Ephedraceae Ephedra aspera Engelm. ex S. Watson. 1 1 1 0 1 0 1 0 0
Ephedraceae Ephedra compacta Rose 0 0 0 1 1 0 0 1 1
Ericaceae Arbutus xalapensis Kunth 1 1 1 1 1 1 0 0 0
Ericaceae Arctostaphylos pungens Kunth 1 1 1 1 1 1 0 1 1
Ericaceae Comarostaphylis polifolia (Kunth) Zucc. ex Klotzsch 1 0 1 0 1 0 0 0 1
Euphorbiaceae Acalypha hederacea Torr. 1 1 0 0 0 0 0 0 1
Euphorbiaceae Acalypha monostachya Cav. 1 0 1 1 1 1 0 1 0
Euphorbiaceae Acalypha phleoides Cav. 0 0 0 1 0 1 1 0 0
Euphorbiaceae Croton ciliatoglandulifer Ortega 1 0 0 1 0 1 0 1 0
Euphorbiaceae Croton dioicus Cav. 1 1 0 0 0 0 1 1 1
Euphorbiaceae Croton hypoleucus Schltdl. 1 1 1 0 0 0 0 0 0
Euphorbiaceae Croton incanus Kunth 1 1 0 1 1 0 0 0 0
Euphorbiaceae Croton pottsii (Klotzsch) Müll. 1 0 1 1 0 0 1 0 0
Euphorbiaceae Croton sancti-lazari Croizat 1 0 0 0 0 0 0 0 0
Euphorbiaceae Euphorbia antisyphilitica Zucc. 1 1 0 0 1 0 0 0 1
Euphorbiaceae Euphorbia anychioides Boiss. 0 0 0 0 0 1 0 1 0
Euphorbiaceae Euphorbia furcillata Kunth 1 0 0 1 0 0 1 0 1
Euphorbiaceae Euphorbia furcillata var. ribana M. C. Johnst. 0 0 0 0 1 0 0 0 0
Euphorbiaceae Euphorbia hirta L. 0 0 0 0 0 0 1 0 1
Euphorbiaceae Euphorbia macropus (Klotzsch & Garcke) Boiss. 1 0 0 0 0 1 1 1 1
Euphorbiaceae Jatropha dioica Sessé ex Cerv. 1 1 1 1 1 1 1 1 1
Euphorbiaceae Stillingia bicarpellaris S. Watson 0 0 0 0 1 0 0 0 0
Euphorbiaceae Tragia ramosa Torr. 1 0 0 1 0 0 0 0 0
Fabaceae Astragalus coriaceus Hemsl. 0 1 0 0 1 0 1 0 0
Fabaceae Astragalus mollissimus Torr. 0 0 0 0 0 0 1 0 1
Fabaceae Bauhinia coulteri J. F. Macbr. var. coulteri 1 0 1 1 0 0 0 0 0
Fabaceae Bauhinia ramosissima Benth. ex Hemsl. var. ramosissima 1 1 1 0 0 0 0 0 0
Fabaceae Bauhinia ramosissima var. uniflora (S. Watson) M.P. Ramírez & R. Torres 1 0 0 0 0 0 0 0 0
Fabaceae Brongniartia intermedia Moric. 1 0 1 0 0 0 0 1 1
Fabaceae Calliandra conferta Benth. 1 1 1 0 0 0 0 0 0
Fabaceae Calliandra eriophylla Benth. 1 0 0 1 0 1 0 0 1
Fabaceae Calliandra eriophylla Benth. var. eriophylla 0 0 0 0 1 0 0 0 0
Fabaceae Cologania angustifolia Kunth 1 1 1 1 0 0 0 0 0
Fabaceae Crotalaria cajanifolia Kunth 1 0 0 0 0 0 0 0 1
Fabaceae Dalea bicolor Humb. & Bonpl. ex Willd. 1 1 1 1 1 1 1 1 1
Fabaceae Dalea foliolosa (Aiton) Barneby 0 0 1 1 0 0 1 1 1
Fabaceae Dalea greggii A. Gray 1 1 1 0 0 0 0 1 1
Fabaceae Dalea lutea (Cav.) Willd. 1 1 0 1 0 1 1 1 1
Fabaceae Dalea lutea (Cav.) Willd. var. lutea 1 0 0 0 1 0 0 0 0
Fabaceae Dalea tuberculata Lag. 0 0 0 0 1 0 0 0 0
Fabaceae Dermatophyllum secundiflorum (Ortega) Gandhi & Reveal 1 1 0 1 1 0 0 0 1
Fabaceae Desmodium grahamii A. Gray 1 0 0 1 0 1 0 1 0
Fabaceae Eysenhardtia polystachya (Ortega) Sarg. 1 0 1 0 1 1 0 1 0
Fabaceae Eysenhardtia schizocalyx Pennell 1 0 0 0 0 0 0 0 0
Fabaceae Mariosousa mammifera (Schltdl.) Seigler & Ebinger 1 0 0 0 0 0 0 0 0
Fabaceae Mimosa aculeaticarpa Ortega 1 1 0 1 1 1 1 1 0
Fabaceae Mimosa biuncifera Benth. 0 0 0 1 1 1 1 1 1
Fabaceae Mimosa minutifolia B. L. Rob. & Greenm. 0 0 0 0 0 1 0 1 0
Fabaceae Mimosa zygophylla Benth. 1 0 1 0 1 1 1 0 1
Fabaceae Nissolia wislizenii (A. Gray) A. Gray 0 0 0 0 0 1 0 1 0
Fabaceae Painteria leptophylla (DC.) Britton & Rose 0 0 0 0 0 1 0 1 0
Fabaceae Phaseolus gladiolatus Freytag & Debouck 1 0 0 0 0 0 0 0 0
Fabaceae Prosopis laevigata (Humb. & Bonpl. ex Willd.) M.C. Johnst. 1 0 1 0 1 1 0 1 0
Fabaceae Senegalia berlandieri (Benth.) Britton & Rose 1 1 1 0 1 0 0 0 0
Fabaceae Senegalia roemeriana (Scheele) Britton y Rose 1 1 0 0 1 0 0 0 0
Fabaceae Senna wislizeni (A. Gray) Irwin & Barneby 1 1 1 0 1 1 0 0 0
Fabaceae Sophora secundiflora (Ortega) Lag. ex DC. 1 1 0 1 1 1 0 0 1
Fabaceae Vachellia constricta (Benth.) Seigler y Ebinger 0 0 1 0 1 0 0 1 0
Fabaceae Vachellia farnesiana (L.) Wight y Arn. var. farnesiana 0 0 1 0 1 1 0 1 0
Fabaceae Vachellia schaffneri (S. Watson) Seigler & Ebinger 1 1 1 0 1 1 1 1 1
Fabaceae Zornia thymifolia Kunth 1 0 1 0 0 1 0 1 1
Fagaceae Quercus affinis Scheidw. 1 1 0 0 1 0 0 0 0
Fagaceae Quercus castanea Née 1 1 0 1 0 0 0 0 0
Fagaceae Quercus chihuahuensis Trel. 0 0 1 0 1 1 0 0 0
Fagaceae Quercus cordifolia Trel. 0 0 0 0 0 0 1 0 0
Fagaceae Quercus crassifolia Bonpl. 1 1 0 0 0 1 0 1 1
Fagaceae Quercus depressipes Trel. 0 0 1 0 1 1 1 0 0
Fagaceae Quercus deserticola Trel. 1 1 1 1 1 1 0 0 0
Fagaceae Quercus diversifolia Née 0 0 0 0 1 0 0 0 0
Fagaceae Quercus eduardi Trel. 1 1 1 0 1 1 1 0 1
Fagaceae Quercus greggii (A. DC.) Trel. 1 1 0 0 1 0 0 0 1
Fagaceae Quercus grisea Liebm. 0 0 1 0 1 1 0 1 1
Fagaceae Quercus hintoniorum Nixon & C. H. Müller 0 0 0 0 1 0 0 0 0
Fagaceae Quercus intricata Trel. 0 0 1 0 1 0 0 0 0
Fagaceae Quercus laeta Liebm. 1 1 0 1 1 1 0 0 0
Fagaceae Quercus laurina Bonpl. 1 0 0 1 0 0 0 0 0
Fagaceae Quercus mexicana Bonpl. 0 0 0 0 1 1 0 0 0
Fagaceae Quercus microphylla Née 0 1 1 0 1 0 0 0 1
Fagaceae Quercus potosina Trel. 1 1 0 0 0 1 1 1 1
Fagaceae Quercus pringlei Seemen 1 1 0 0 1 1 0 0 1
Fagaceae Quercus pungens Liebm. 0 0 1 0 1 0 0 0 0
Fagaceae Quercus resinosa Liebm. 1 0 0 0 0 0 0 0 0
Fagaceae Quercus rugosa Née 0 0 0 1 1 1 1 0 0
Fagaceae Quercus striatula Trel. 1 0 0 1 0 0 0 0 0
Fagaceae Quercus tinkhamii C. H. Müll 1 0 0 0 1 0 0 0 0
Fouquieriaceae Fouquieria splendens Engelm. 1 1 1 0 1 0 0 0 1
Fouquieriaceae Fouquieria splendens subsp. breviflora Henrickson 1 0 0 0 0 0 0 0 0
Fouquieriaceae Fouquieria splendens subsp. campanulata (Nash) Henrickson 1 0 0 0 0 0 0 0 0
Garryaceae Garrya laurifolia Hartw. ex Benth. 0 1 1 1 1 0 0 0 0
Garryaceae Garrya laurifolia subsp. macrophylla (Benth.) Dahling 1 1 0 0 0 0 0 0 0
Garryaceae Garrya ovata Benth 0 1 0 1 1 1 1 1 0
Garryaceae Garrya ovata subsp. mexicana Dahling 0 0 0 0 1 0 0 0 1
Geraniaceae Erodium cicutarum (L.) L'Hér. ex Aiton 0 0 0 0 1 0 1 1 0
Iridaceae Sisyrinchium scabrum Cham. & Schltdl. 0 0 0 1 0 1 0 0 1
Iridaceae Sisyrinchium tenuifolium Humb. & Bonpl. ex Willd. 0 0 0 1 0 0 1 0 1
Iridaceae Tigridia potosina López-Ferr. & Espejo 0 0 0 1 0 0 0 0 0
Krameriaceae Krameria cytisoides Cav. 1 1 0 1 1 0 1 1 1
Lamiaceae Hedeoma drummondii Benth. 1 0 0 1 1 0 0 0 0
Lamiaceae Poliomintha longiflora A. Gray 0 0 1 1 1 0 0 0 0
Lamiaceae Poliomintha marifolia (S. Schauer) A. Gray 1 1 0 1 0 0 0 0 0
Lamiaceae Salvia axillaris Moc. & Sessé ex Benth. 0 0 0 1 0 1 1 1 1
Lamiaceae Salvia ballotiflora Benth 1 1 0 1 1 1 1 1 0
Lamiaceae Salvia chamaedryoides Cav. 0 0 0 0 1 1 1 0 0
Lamiaceae Salvia coccinea Buc’hoz ex Etl. 1 1 1 0 0 0 0 0 0
Lamiaceae Salvia connivens Epling 1 0 0 1 0 0 0 0 0
Lamiaceae Salvia greggii A. Gray 0 0 1 1 1 0 0 0 0
Lamiaceae Salvia isochroma (Fernald) B. L. Turner 0 0 0 0 1 0 1 0 0
Lamiaceae Salvia keerlii Benth. 1 1 0 1 1 0 0 0 0
Lamiaceae Salvia lycioides A. Gray 0 0 0 1 1 1 0 1 0
Lamiaceae Salvia melissodora Lag. 1 0 1 0 0 0 0 0 0
Lamiaceae Salvia mexicana L. 1 1 1 1 1 0 0 0 0
Lamiaceae Salvia microphylla Kunth 1 0 1 0 1 1 0 1 1
Lamiaceae Salvia pennellii Epling 0 0 0 1 1 0 0 0 0
Lamiaceae Salvia podadena Briq. 0 0 0 0 0 1 0 0 0
Lamiaceae Salvia regla Cav. 1 1 0 1 1 1 0 1 1
Lamiaceae Salvia tiliifolia Vahl 1 0 1 0 1 0 0 1 0
Lamiaceae Scutellaria hispidula B. L. Rob. 0 0 0 1 0 0 0 0 0
Lamiaceae Stachys sandersii B. L. Turner 0 0 0 1 0 0 0 0 0
Lauraceae Litsea glaucescens Kunth 1 1 0 1 1 1 0 0 1
Lauraceae Litsea novoleontis Bartlett 1 0 0 1 0 0 0 0 0
Lentibulariaceae Pinguicula debbertiana Speta & F. Fuchs 1 0 1 0 0 0 0 0 0
Lentibulariaceae Pinguicula ehlersiae Speta & F. Fuchs 1 0 0 1 0 0 0 0 0
Lentibulariaceae Pinguicula esseriana B. Kirchn. 1 0 0 0 0 0 0 0 0
Lentibulariaceae Pinguicula kondoi Casper 1 0 0 0 0 0 0 0 0
Linaceae Linum rupestre (A. Gray) Engelm. ex A. Gray 0 0 1 1 0 0 1 0 0
Linaceae Linum scabrellum Planch. 1 0 0 1 0 0 0 0 0
Linaceae Linum schiedeanum Schltdl. & Cham. 1 0 1 0 0 0 0 0 0
Linaceae Linum vernale Wooton 1 0 0 0 0 0 0 0 0
Loasaceae Mentzelia aspera L. 1 0 0 1 0 0 1 1 0
Loasaceae Mentzelia hispida Willd. 1 0 0 1 1 1 0 1 0
Malpighiaceae Mascagnia sericea Nied. 1 1 1 0 0 0 0 0 0
Moraceae Morus celtidifolia Kunth 1 1 0 1 1 0 0 0 0
Nyctaginaceae Cyphomeris gypsophiloides (M. Martens. & Galeotti) Standl. 1 0 0 1 1 0 0 0 0
Oleaceae Forestiera angustifolia Torr. 0 0 1 1 1 0 0 0 0
Oleaceae Forestiera reticulata Torr. 1 1 0 0 1 0 0 0 0
Oleaceae Fraxinus greggii A. Gray var. greggii 1 1 1 0 1 0 0 0 1
Oleaceae Fraxinus potosina Brandegee 1 0 1 1 0 0 0 0 0
Oleaceae Menodora coulteri A. Gray 1 1 1 0 1 1 0 0 0
Oleaceae Menodora coulteri A. Gray var. coulteri 1 0 0 0 0 0 0 0 0
Oleaceae Menodora coulteri var. minima Steyerm. 1 0 0 0 0 0 0 0 0
Oleaceae Menodora scabra A. Gray 1 1 1 1 1 0 0 1 1
Orchidaceae Govenia lagenophora Lindl. 0 0 0 1 0 0 0 0 0
Orchidaceae Spiranthes graminea Lindl. ex Benth. 1 0 0 0 0 0 0 0 0
Orobanchaceae Aureolaria greggii (S. Watson.) Pennell 1 0 0 1 0 0 1 0 0
Orobanchaceae Castilleja arvensis Schltdl. & Cham. 1 1 0 1 0 0 0 0 0
Orobanchaceae Castilleja rigida Eastw. 1 0 1 1 0 0 0 0 0
Orobanchaceae Castilleja tenuiflora Benth 1 1 1 1 1 1 1 0 0
Oxalidaceae Oxalis albicaulis(Rose) Rose ex R. Knuth 0 0 0 0 1 0 1 0 0
Oxalidaceae Oxalis corniculata L. 1 0 0 1 1 0 0 1 0
Oxalidaceae Oxalis decaphylla Kunth 0 0 0 1 0 1 0 1 1
Oxalidaceae Oxalis latifolia Kunth 1 0 0 1 0 0 0 0 0
Papaveraceae Argemone fruticosa Thurb. ex A. Gray 0 0 0 0 1 0 0 1 1
Phytolaccaceae Phytolacca icosandra L. 1 0 0 0 0 0 1 0 0
Pinaceae Pinus cembroides Zucc. 0 0 1 1 1 1 0 1 1
Pinaceae Pinus discolor D.K. Bailey & Hawksw. 0 0 0 0 0 0 0 1 0
Pinaceae Pinus johannis Rob.-Pase. 0 0 0 0 0 0 1 0 1
Pinaceae Pinus greggii Engelm. ex Parl. 0 0 0 1 1 0 0 0 0
Pinaceae Pinus nelsonii Shaw. 0 1 0 0 0 0 0 0 0
Pinaceae Pinus pinceana Gordon. & Glend. 1 0 0 0 0 0 0 0 0
Pinaceae Pinus pseudostrobus Lindl. 1 1 0 1 0 0 0 0 0
Plantaginaceae Maurandya antirrhiniflora Humb. & Bonpl. ex Willd. 1 0 0 1 0 0 0 0 0
Plantaginaceae Maurandya barclayana Lindl. 1 0 0 1 0 1 0 1 0
Plantaginaceae Penstemon barbatus (Cav.) Roth 0 0 1 1 0 0 1 0 1
Plantaginaceae Penstemon barbatus var. wislizeni A. Gray 0 0 0 0 1 0 0 0 0
Plantaginaceae Penstemon lanceolatus Benth. 1 0 0 0 0 0 1 0 0
Plantaginaceae Penstemon potosinus Straw 0 0 0 0 0 0 1 0 0
Plantaginaceae Plantago linearis Kunth 0 0 0 0 1 0 0 0 1
Plantaginaceae Plantago nivea Kunth 0 0 1 1 1 1 1 1 0
Plantaginaceae Russelia coccinea (L.) Wetts. 1 0 0 0 0 0 0 0 0
Plantaginaceae Russelia polyedra Zucc. 1 0 1 0 0 0 0 0 0
Poaceae Achnatherum eminens (Cav.) Barkworth 0 0 0 0 1 0 1 1 1
Poaceae Agropyron arizonicum Scribn. & Smith 0 0 0 0 1 0 0 0 0
Poaceae Aristida adscensionis L. 1 1 1 0 1 0 0 0 0
Poaceae Aristida barbata E. Fourn. 0 0 0 0 1 0 0 0 0
Poaceae Aristida divaricata Humb. & Bonpl. ex Willd. 0 0 1 0 0 1 1 1 1
Poaceae Aristida glauca (Nees) Walp. 0 1 0 0 0 0 1 0 1
Poaceae Aristida havardii vasey 0 0 1 0 0 1 0 1 0
Poaceae Aristida purpurea Nutt. Var. Purpurea 1 1 1 1 0 0 0 0 0
Poaceae Aristida schiedeana Trin. & Rupr. 1 0 0 1 1 1 0 1 1
Poaceae Aristida ternipes Cav. 0 1 0 0 1 0 0 0 1
Poaceae Bothriochloa barbinodis (Lag.) Herter 0 0 1 1 1 0 0 0 0
Poaceae Bothriochloa laguroides (DC.) Herter 1 0 1 1 0 0 0 0 0
Poaceae Bouteloua chasei Swallen 1 1 0 0 1 0 0 0 0
Poaceae Bouteloua curtipendula (Michx.) Torr. 0 1 1 1 0 1 1 1 1
Poaceae Bouteloua curtipendula (Michx.) Torr. var. curtipendula 1 0 0 0 0 0 0 0 0
Poaceae Bouteloua dactyloides (Nutt.) Columbus 1 0 0 1 1 1 1 0 0
Poaceae Bouteloua gracilis (Kunth) Lag. ex Griffiths 1 1 1 1 0 1 0 1 1
Poaceae Bouteloua hirsuta Lag. 0 1 1 1 1 1 1 1 0
Poaceae Bouteloua hirsuta Lag. var. hirsuta 1 0 0 0 0 0 0 0 0
Poaceae Bouteloua scorpioides Lag. 0 0 1 0 1 1 0 1 1
Poaceae Bouteloua trifida Thurb. ex S. Watson 0 0 0 0 1 0 0 0 0
Poaceae Bromus anomalus Rupr. ex E. Fourn. 0 1 0 0 1 1 0 1 1
Poaceae Chloris gayana Kunth 0 1 1 1 1 0 0 0 0
Poaceae Chloris submutica Kunth 0 0 1 1 1 0 1 0 0
Poaceae Chloris virgata Sw. 0 0 1 1 1 0 1 1 0
Poaceae Cynodon dactylon (L.) Pers. 0 0 1 1 1 1 0 1 1
Poaceae Enneapogon desvauxii P. Beauv. 1 0 0 0 1 0 1 0 1
Poaceae Eragrostis cilianensis (All.) Vignolo ex Janch. 0 0 1 0 1 1 0 0 0
Poaceae Eragrostis intermedia Hitchc. 0 0 0 0 1 1 1 1 0
Poaceae Eragrostis mexicana (Hornem.) Link 0 0 1 1 1 0 1 0 1
Poaceae Erioneuron avenaceum (Kunth) Tateoka 1 0 0 0 1 1 1 1 0
Poaceae Heteropogon contortus (L.) P. Beauv. 1 1 1 1 1 1 0 1 0
Poaceae Hilaria cenchroides Kunth 1 1 1 1 1 0 0 0 0
Poaceae Jarava ichu Ruiz & Pav. 0 0 0 0 1 1 0 0 0
Poaceae Leptochloa dubia (Kunth) Nees 1 0 1 1 0 0 1 1 0
Poaceae Melinis repens (Willd.) Zizka 1 0 1 1 0 1 0 1 1
Poaceae Microchloa kunthii Desv. 0 0 1 1 1 1 0 1 1
Poaceae Muhlenbergia distans Swalle. 0 0 0 0 1 0 1 0 0
Poaceae Muhlenbergia dubia E. Fourn. 1 0 1 1 1 1 1 1 0
Poaceae Muhlenbergia emersleyi Vasey 1 1 0 0 0 0 0 0 1
Poaceae Muhlenbergia firma Beal 0 0 0 1 0 0 1 1 0
Poaceae Muhlenbergia glauca (Nees) B. D. Jacks. 1 1 0 0 1 0 1 0 0
Poaceae Muhlenbergia gypsophila Reeder & C. Reeder 1 1 0 0 1 1 0 0 0
Poaceae Muhlenbergia microsperma (DC.) Kunth 1 1 0 1 1 0 1 0 1
Poaceae Muhlenbergia minutissima (Steud.) Swallen 0 0 0 0 1 0 0 0 0
Poaceae Muhlenbergia phleoides (Kunth) Columbus 1 1 0 0 1 1 1 1 0
Poaceae Muhlenbergia pubescens (Kunth) Hitchc. 0 0 1 1 1 1 1 1 0
Poaceae Muhlenbergia purpusii Mez 1 0 0 0 1 0 0 0 0
Poaceae Muhlenbergia quadridentata (Kunth) Trin. 0 0 0 0 0 1 0 1 0
Poaceae Muhlenbergia repens (J. Presl) Hitchc. 0 0 0 0 1 0 0 0 0
Poaceae Muhlenbergia rigida (Kunth) Kunth 1 1 1 1 1 1 1 1 1
Poaceae Muhlenbergia tenuifolia (Kunth) Kunth 0 0 0 0 1 0 1 0 0
Poaceae Muhlenbergia villiflora Hitch. var. villiflora 0 0 0 0 1 0 0 0 0
Poaceae Muhlenbergia villiflora Hitchc. 1 0 1 1 0 1 0 1 1
Poaceae Nassella leucotricha (Trin. & Rupr.) R.W. Pohl 1 0 1 1 1 0 0 0 0
Poaceae Nassella mucronata (Kunth) R.W. Pohl 0 0 1 1 1 0 0 1 1
Poaceae Nassella tenuissima (Trin.) Barkworth 0 0 1 1 1 0 1 0 0
Poaceae Pappophorum bicolor E. Fourn. 0 0 0 0 1 0 0 0 0
Poaceae Piptochaetium brevicalyx (E. Fourn.) Ricker 0 0 0 0 1 1 1 1 1
Poaceae Piptochaetium fimbriatum (Kunth) Hitchc. 1 1 1 1 1 1 0 1 1
Poaceae Rhynchelytrum repens (Willd.) C.E. Hubb. 0 0 0 0 1 1 0 1 0
Poaceae Schizachyrium sanguineum (Retz.) Alston 0 0 0 1 0 1 0 1 0
Poaceae Setaria geniculata P. Beauv. 0 0 0 0 1 0 0 0 0
Poaceae Setaria grisebachii E. Fourn. 1 0 0 0 1 0 0 0 0
Poaceae Setaria leucopila (Scribn. & Merr.) K. Schum. 1 0 0 1 1 1 0 0 0
Poaceae Setaria macrostachya Kunth 1 0 0 1 1 0 1 0 0
Poaceae Setaria parviflora (Poir.) Kerguélen 1 1 0 1 0 0 0 0 0
Poaceae Sohnsia filifolia (E. Fourn.) Airy Shaw 1 0 0 0 0 0 0 0 0
Poaceae Sorghastrum nutans (L.) Nash 0 0 0 0 1 0 0 0 0
Poaceae Sporobolus pyramidatus (Lam.) Hitchc. 0 0 0 0 0 1 0 1 1
Poaceae Trachypogon spicatus (L.F.) Kuntze 0 0 0 0 0 1 0 1 0
Poaceae Tridens muticus (Torr.) Nash 1 0 0 0 0 0 0 0 0
Polemoniaceae Giliastrum incisum (Benth.) J. M. Porter 0 0 0 1 1 0 0 0 0
Polemoniaceae Giliastrum stewartii (I. M. Johnst.) J. M. Porter 1 0 0 1 0 1 0 0 0
Polemoniaceae Loeselia caerulea (Cav.) G. Don 1 1 1 1 1 1 1 1 1
Polemoniaceae Loeselia mexicana (Lam.) Brand 0 0 1 1 0 1 0 1 0
Polygalaceae Polygala berlandieri S. Watson 0 0 0 0 0 0 1 0 0
Polygalaceae Polygala compacta Rose 1 0 0 0 0 1 0 1 1
Polygonaceae Eriogonum viscanum W. J. Hess & Reveal 0 0 0 0 1 0 0 0 1
Polypodiaceae Polypodium guttatum Maxon 0 0 0 0 1 0 1 0 1
Portulacaceae Portulaca pilosa L. 1 0 0 1 1 0 1 1 0
Pteridaceae Adiantum capillus-veneris L. 0 0 0 1 1 0 1 0 0
Pteridaceae Astrolepis sinuata (Lag. ex Sw.) D. M. Benham & Windham 1 0 1 0 0 1 0 1 0
Pteridaceae Cheilanthes bonariensis (Willd.) Proctor 0 0 0 0 0 0 1 1 0
Pteridaceae Cheilanthes pyramidalis Fée 1 0 0 0 0 1 0 0 0
Pteridaceae Notholaena aschenborniana Klotzsch 1 0 0 0 0 0 0 0 0
Pteridaceae Notholaena candida Var. copelandii (C. C. Hall) R.M. Tryon 1 0 1 1 0 0 1 1 1
Pteridaceae Pellaea cordifolia (Sessé & Moc.) A. R. Sm. 0 0 0 1 0 0 1 1 0
Pteridaceae Pellaea sagittata var. cordata (Cav.) A. F. Tryon 0 0 0 0 1 0 0 0 0
Pteridaceae Pellaea ternifolia (Cav.) Link 1 0 0 1 0 1 1 1 1
Ranunculaceae Thalictrum fendleri Engelm. ex A. Gray 1 1 0 0 0 0 0 0 0
Rhamnaceae Ceanothus greggii A. Gray 1 0 0 1 1 1 1 1 1
Rhamnaceae Colubrina ehrenbergii Schltdl. 1 0 0 0 1 0 0 0 0
Rhamnaceae Condalia fasciculata I. M. Johnst. 1 0 1 0 1 0 0 0 1
Rhamnaceae Condalia mexicana Schltdl. 1 1 1 0 1 0 0 1 1
Rhamnaceae Karwinskia mollis Schltdl. 1 1 1 0 1 0 0 0 1
Rosaceae Cercocarpus macrophyllus C. K. Schneid. 1 0 0 1 0 0 0 0 0
Rosaceae Cercocarpus montanus Raf 0 1 1 1 0 1 1 1 0
Rosaceae Cercocarpus montanus var. paucidentatus (S. Watson) F. L. Martin 0 0 0 0 1 0 0 0 0
Rosaceae Cercocarpus rzedowskii Henr. 1 0 1 0 0 0 0 0 0
Rosaceae Crataegus pubescens (C. Presl) C. Presl 0 1 0 0 1 0 0 0 0
Rosaceae Lachemilla aphanoides (Mutis ex L. f.) Rothm. 0 0 0 1 1 0 0 0 0
Rosaceae Lindleya mespiloides Kunth 1 1 1 1 1 0 1 0 1
Rosaceae Malacomeles denticulata (Kunth) G. N. Jones 1 1 1 0 1 0 1 0 0
Rosaceae Prunus microphylla (Kunth) Hemsl. 0 0 0 0 1 0 1 0 0
Rosaceae Prunus serotina subsp. capuli (Cav.) McVaugh 1 1 0 1 1 0 0 0 0
Rosaceae Vauquelinia corymbosa subsp. karwinskyi (Maxim.) W.J. Hess & Henrickson 0 0 0 0 1 0 0 0 0
Rosaceae Vauquelinia corymbosa subsp. saltilloensis W. J. Hess & Henrickson 1 1 0 0 0 0 0 0 0
Rubiaceae Bouvardia ternifolia (Cav.) Schltdl. 1 0 1 1 1 1 1 1 1
Rubiaceae Crusea diversifolia W. R. Anderson 0 0 1 0 1 1 1 1 0
Rubiaceae Galium pennellii Dempster 0 0 0 1 0 0 0 0 1
Rubiaceae Galium rzedowskii Dempster 1 0 0 0 0 0 0 0 0
Rubiaceae Galium uncinulatum DC. 0 0 0 1 1 0 0 1 1
Rutaceae Casimiroa pringlei (S. Watson) Engl. ex Engl. & Prantl 1 0 0 1 1 0 0 0 0
Rutaceae Choisya palmeri Standl. 0 0 0 0 1 0 0 0 0
Rutaceae Helietta parvifolia (A. Gray ex Hemsl.) Benth. 1 0 1 1 1 0 0 0 1
Rutaceae Ptelea trifoliata L. 1 1 0 1 1 0 1 0 1
Rutaceae Zanthoxylum fagara (L.) Sarg. 1 0 1 0 0 0 0 0 0
Salicaceae Neopringlea integrifolia (Hemsl.) S. Watson 1 0 0 1 1 0 0 0 0
Santalaceae Phoradendron brachystachyum (DC.) Nutt. 1 1 0 0 1 0 0 0 0
Santalaceae Phoradendron flavum I. M. Johnst. 0 0 0 0 1 0 0 0 0
Santalaceae Phoradendron lanceolatum Engelm. ex A. Gray 0 0 0 1 1 0 0 0 0
Sapindaceae Cardiospermum halicacabum L. 0 0 0 0 1 0 0 0 0
Sapindaceae Dodonaea viscosa (L.) Jacq. 1 1 1 1 1 1 1 1 1
Scrophulariaceae Buddleja cordata Kunth. 1 0 1 1 1 0 1 0 0
Scrophulariaceae Buddleja cordata subsp. tomentella (Standl.) E. M. Norman 1 0 0 0 0 0 0 0 0
Scrophulariaceae Buddleja scordioides Kunth. 0 0 1 1 0 0 1 1 1
Scrophulariaceae Leucophyllum pruinosum I. M. Johnst. 1 0 0 1 0 0 0 0 0
Scrophulariaceae Leucophyllum revolutum Rzed. 1 0 1 0 0 0 0 0 0
Selaginellaceae Selaginella pallescens var. acutifolia Stolze 0 0 1 0 1 0 0 0 0
Smilacaceae Smilax bona-nox L. 1 1 0 1 1 0 0 0 0
Solanaceae Nicotiana glauca Graham 1 0 1 1 1 1 1 1 0
Solanaceae Physalis pennellii Waterf. 0 0 0 0 1 0 0 0 0
Solanaceae Solanum rostratum Dunal 1 0 1 0 1 1 1 1 0
Solanaceae Solanum stoloniferum Schltdl. 0 0 0 1 0 1 1 1 0
Verbenaceae Aloysia gratissima (Gillies & Hook.) Tronc. 0 1 1 0 0 0 0 1 1
Verbenaceae Aloysia macrostachya (Torr.) Moldenke 1 0 1 1 0 0 0 0 0
Verbenaceae Citharexylum oleinum (Benth. ex Lindl.) Moldenke 1 0 0 0 1 0 0 0 1
Verbenaceae Glandularia bipinnatifida (Nutt.) Nutt. 1 0 0 1 0 1 0 0 0
Verbenaceae Lantana achyranthifolia Desf. 1 0 0 1 0 0 0 0 0
Verbenaceae Lantana camara L. 0 0 1 1 0 1 0 1 1
Verbenaceae Lantana hirta Graham 1 1 0 1 0 0 0 0 1
Verbenaceae Lantana macropoda Torr. 0 0 0 1 0 1 0 0 0
Verbenaceae Priva mexicana (L.) Pers. 1 0 0 1 1 0 0 0 0
Verbenaceae Verbena menthifolia Benth. 0 0 0 0 0 0 1 0 0
Violaceae Viola schaffneriana Becker 0 0 0 0 1 0 0 0 0
Zamiaceae Ceratozamia zaragozae Medellín-Leal 0 0 1 1 0 0 0 0 0

Apéndice

Apéndice 1 Composición florística de los bosques piñoneros del estado de San Luis Potosí. Sitios de estudio: G = Guadalcázar, ERJ = El Realejo, S = Salitrería, ER = El Ranchito; SJC = San José de Coronados, C = Calderón, PL = Picacho de Lajas, GVYC = Guadalupe Victoria y la Cruz, y A = La Amapola. 

Familia Especie G ERJ S ER SJC C PL GVYC LA
Acanthaceae Carlowrightia haplocarpa B. L. Rob. & Greenm. 1 0 0 0 0 0 0 0 0
Acanthaceae Jacobinia mexicana Seem. 1 1 0 0 0 0 0 0 0
Acanthaceae Stenandrium dulce (Cav.) Nees 1 1 0 1 1 0 1 0 0
Amaranthaceae Celosia palmeri S. Watson 1 0 0 0 0 0 0 0 0
Amaranthaceae Dysphania graveolens (Willd.) Mosyakin & Clemants 0 0 0 0 0 0 1 0 0
Amaranthaceae Gomphrena serrata L. 1 1 0 1 0 1 0 1 0
Amaryllidaceae Allium glandulosum Link & Otto 1 1 0 1 0 1 1 1 1
Anacampserotaceae Talinopsis frutescens A. Gray 0 0 0 1 1 0 0 0 0
Anacardiaceae Pistacia mexicana Kunth 1 0 0 0 0 0 0 0 0
Anacardiaceae Rhus aromatica var. schmidelioides (Schlecht.) Engl. 1 1 0 0 0 0 0 0 0
Anacardiaceae Rhus aromatica var. trilobata (Nutt.) A. Gray 1 0 0 0 1 0 0 0 0
Anacardiaceae Rhus pachyrrhachis Hemsl. 1 1 1 0 1 1 0 0 0
Anacardiaceae Rhus trilobata Nutt. 0 0 1 0 0 0 1 0 0
Anacardiaceae Rhus virens Lindh. ex A. Gray 1 1 0 1 1 0 0 0 1
Apiaceae Prionosciadium palmeri Rose 0 0 0 1 0 0 0 0 0
Apiaceae Rhodosciadium argutum (Rose) Mathias & Constance 0 0 0 1 0 0 0 0 0
Apocynaceae Asclepias linaria Cav. 1 0 1 1 1 1 1 1 1
Apocynaceae Mandevilla karwinskii (Müll. Arg.) Hemsl. 1 0 0 0 1 0 0 0 0
Apocynaceae Matelea suberifera (B. L. Rob.) W. D. Stevens 0 0 0 1 0 0 0 0 0
Apocynaceae Telosiphonia hypoleuca (Benth.) Henrickson 1 0 0 0 0 1 0 0 0
Araliaceae Aralia regeliana Marchal 1 1 0 1 1 0 0 0 0
Arecaceae Brahea decumbens Rzed. 1 1 0 1 0 0 0 0 1
Aristolochiaceae Aristolochia nana S. Watson 1 0 0 1 0 0 0 0 0
Asparagaceae Agave asperrima subsp. potosiensis (Gentry) B. Ullrich 0 0 0 1 0 0 0 1 0
Asparagaceae Agave filifera Sal-Dyck 0 1 1 1 1 0 1 0 1
Asparagaceae Agave garciae-mendozae Galván & L. Hern. 1 0 0 0 0 0 0 0 0
Asparagaceae Agave gentryi B. Ullrich 1 1 1 0 1 0 0 1 0
Asparagaceae Agave lechuguilla Torr. 1 1 1 1 1 1 1 1 1
Asparagaceae Agave mitis Salm-Dyck. 0 0 1 1 0 0 0 0 0
Asparagaceae Agave parrasana Berger 0 0 0 0 0 1 0 1 0
Asparagaceae Agave salmiana Otto ex Salm-Dyck var. salmiana 0 0 1 1 1 1 0 1 1
Asparagaceae Agave salmiana subsp. crassispina (Trel. ex LH Bailey) Gentry 1 1 0 0 1 0 1 0 0
Asparagaceae Agave schidigera Lem. 0 1 1 0 0 1 0 1 1
Asparagaceae Agave striata subsp. falcata (Engelm.) Gentry 0 0 0 0 1 0 0 0 0
Asparagaceae Agave striata subsp. striata (Salm-Dyck) B. Ullrich 1 0 0 0 0 0 0 0 0
Asparagaceae Agave striata Zucc. 1 1 1 0 1 0 1 0 1
Asparagaceae Dasylirion acrotrichum (Schiede) Zucc. 1 0 1 1 1 1 1 1 1
Asparagaceae Dasylirion cedrosanum Trel. 1 1 1 1 1 1 1 0 0
Asparagaceae Dasylirion longissimum Lem. 1 1 1 0 1 0 0 0 1
Asparagaceae Dasylirion longistylum J. F. Macbr. 1 0 1 0 0 0 0 0 0
Asparagaceae Dasylirion palaciosii Rzed. 1 1 0 1 0 0 0 0 0
Asparagaceae Dasylirion parryanum Trel. 0 0 0 0 1 1 0 1 0
Asparagaceae Dasylirion texanum Scheele 0 1 0 0 0 0 0 0 1
Asparagaceae Echeandia flavescens (Schult. & Schult. f.) Cruden 1 0 1 0 0 1 1 1 1
Asparagaceae Echeandia mexicana Cruden 0 0 0 1 0 1 0 1 1
Asparagaceae Milla biflora Cav. 1 0 0 0 0 0 0 1 1
Asparagaceae Milla potosina T. M. Howard 1 1 0 0 0 0 0 0 0
Asparagaceae Nolina cespitifera Trel. 1 1 1 1 0 1 0 1 1
Asparagaceae Nolina texana S. Watson 0 0 1 1 1 1 1 0 0
Asparagaceae Nolina watsoni (Baker) Hemsl. 0 0 1 1 0 0 0 1 0
Asparagaceae Yucca carnerosana (Trel.) McKelvey 1 1 1 1 1 1 1 1 1
Asparagaceae Yucca decipiens Trel. 1 0 1 1 1 1 1 1 0
Asparagaceae Yucca filifera Chabaud 1 1 1 1 1 1 1 1 1
Asparagaceae Yucca potosina Rzed. 1 1 1 1 0 0 0 0 0
Asphodelaceae Asphodelus fistulosus L. 1 1 1 1 1 0 1 1 1
Aspleniaceae Asplenium monanthes L. 1 0 0 1 0 0 0 0 0
Aspleniaceae Asplenium resiliens Kunze 1 0 0 1 1 0 0 0 0
Asteraceae Acourtia oxylepis (A. Gray) Reveal & R. M. King 0 0 1 0 0 1 0 0 0
Asteraceae Acourtia potosina R. L. Cabrera 0 0 0 1 0 0 0 1 1
Asteraceae Acourtia runcinata (D. Don) B. L. Turner 1 1 1 1 0 0 0 0 0
Asteraceae Ageratina calaminthifolia (Kunth) R. M. King et H. Rob. 1 1 0 0 0 0 0 0 0
Asteraceae Ageratina calophylla (Greene) Molinari & Mayta 1 0 0 0 1 0 0 0 1
Asteraceae Ageratina espinosarum (A. Gray) R. M. King & H. Rob. var. espinosarum 0 1 0 0 1 0 0 0 0
Asteraceae Ageratina espinosarum (A. Gray) R. M. King & H. Rob. 1 1 0 1 1 0 0 0 0
Asteraceae Ageratina saltillensis (B. L. Rob.) R. M. King & H. Rob. 0 0 1 1 1 0 0 0 1
Asteraceae Ageratina scorodonioides (A. Gray) R. M. King & H. Rob. 0 1 1 0 1 0 0 0 0
Asteraceae Ageratum corymbosum Zuccagni 1 0 1 0 1 1 1 1 1
Asteraceae Aldama cordifolia (A. Gray) E. E. Schill. & Panero 1 0 1 1 1 0 1 0 0
Asteraceae Aster subulatus Michx. 0 1 0 0 1 0 1 0 1
Asteraceae Baccharis occidentalis S. F. Blake 0 0 0 0 0 1 0 1 1
Asteraceae Baccharis pteronioides DC. 0 0 0 1 0 0 1 0 0
Asteraceae Bidens odorata Cav. 0 1 0 1 0 1 1 1 0
Asteraceae Bidens odorata Cav. var. odorata 1 0 0 0 0 0 0 0 0
Asteraceae Bidens pilosa L. 1 0 0 0 0 0 0 0 0
Asteraceae Brickellia veronicifolia (Kunth) A. Gray 0 1 1 1 0 1 1 1 1
Asteraceae Chaetopappa bellioides (A. Gray) Shinners 1 1 0 0 1 0 0 1 0
Asteraceae Chaetopappa ericoides (Torr.) G. L. Nesom. 0 0 0 0 0 1 0 1 1
Asteraceae Chaptalia lyratifolia Burkart 1 1 1 1 0 0 0 0 0
Asteraceae Chrysactinia mexicana A. Gray 1 1 0 1 1 0 1 0 1
Asteraceae Chrysactinia pinnata S. Watson 1 0 0 1 0 0 0 0 0
Asteraceae Coleosanthus thyrsiflorus (A. Gray) Kuntze 0 0 0 0 0 1 0 1 0
Asteraceae Critoniopsis obtusa (Gleason) H. Rob. 0 0 0 0 1 0 0 0 0
Asteraceae Dahlia coccinea Cav. 0 0 0 1 0 1 0 1 1
Asteraceae Dahlia dissecta S. Watson 1 0 0 1 0 0 0 0 0
Asteraceae Dahlia sublignosa (P. D. SØrensen) Saar & P. D. Sorensen 1 0 0 0 0 0 0 0 0
Asteraceae Dyssodia papposa (Vent.) Hitch. 0 0 1 1 1 1 1 1 1
Asteraceae Dyssodia pinnata (Cav.) B. L. Rob. 0 0 0 1 1 0 1 0 0
Asteraceae Dyssodia pinnata var. glabrescens Strother 1 1 0 0 0 0 0 0 1
Asteraceae Erigeron longipes DC. 1 1 0 1 0 1 0 1 0
Asteraceae Galinsoga parviflora Cav. 0 0 1 1 0 0 1 1 0
Asteraceae Gochnatia hypoleuca (DC.) A. Gray 1 1 0 0 1 0 0 0 1
Asteraceae Grindelia palmeri Steyerm. 1 1 0 1 0 0 0 0 1
Asteraceae Gutierrezia microcephala (DC.) A. Gray 0 0 1 1 1 0 0 0 0
Asteraceae Gutierrezia sarothrae (Pursh) Britton & Rusby 0 0 0 1 0 1 0 1 1
Asteraceae Gutierrezia texana (DC.) Torr. & A. Gray 1 1 1 1 1 0 0 0 0
Asteraceae Gymnosperma glutinosum (Spreng.) Less. 1 0 0 1 1 1 1 1 1
Asteraceae Heterosperma pinnatum Cav. 1 0 0 1 0 0 1 1 1
Asteraceae Jefea gnaphalioides (A. Gray) Strother 1 0 0 1 1 0 0 0 0
Asteraceae Jefea lantanifolia (S. Schauer) Strother 1 1 0 1 0 0 0 0 0
Asteraceae Lessingianthus obtusatus (Less.) H. Rob. 0 0 0 0 1 0 0 0 0
Asteraceae Melampodium sericeum Lag. 1 0 1 1 0 0 0 0 0
Asteraceae Parthenium rollinsianum Rzed. 1 1 1 0 0 0 0 0 0
Asteraceae Perymenium cornutum Brandegee 1 0 0 0 0 0 0 0 1
Asteraceae Perymenium mendezii DC. 0 0 0 1 0 1 1 1 1
Asteraceae Pinaropappus roseus (Less.) Less. 1 0 1 1 1 0 1 0 0
Asteraceae Piqueria trinervia Cav. 1 1 0 1 1 1 0 1 1
Asteraceae Porophyllum filiforme Rydb. 1 1 0 0 1 0 0 0 0
Asteraceae Porophyllum linaria (Cav.) DC. 1 0 0 1 0 0 0 0 0
Asteraceae Sanvitalia procumbens Lam. 0 0 0 1 1 0 0 0 0
Asteraceae Sclerocarpus uniserialis (Hook.) Benth. & Hook. f. & Hemsl. 1 1 0 1 0 0 0 0 0
Asteraceae Senecio alvarezensis Greenm. 1 0 0 1 0 0 0 0 0
Asteraceae Solidago simplex Kunth 1 0 0 0 0 0 0 0 0
Asteraceae Stevia berlandieri A. Gray 1 1 0 1 0 0 0 0 0
Asteraceae Stevia eupatoria (Spreng.) Willd. 0 0 0 1 1 0 1 0 0
Asteraceae Stevia lucida Lag. 0 1 1 0 1 1 0 1 1
Asteraceae Stevia micrantha Lag. 1 0 1 0 1 0 0 0 0
Asteraceae Stevia ovata var. reglensis (Benth.) Grashoff 1 0 0 0 0 0 0 0 0
Asteraceae Stevia ovata Willd. 0 0 1 0 1 0 0 0 0
Asteraceae Stevia ovata Willd. var. ovata 1 0 0 0 0 0 0 0 0
Asteraceae Stevia salicifolia Cav. 1 0 1 1 1 1 1 1 0
Asteraceae Stevia serrata Cav. 0 0 0 1 1 0 0 1 1
Asteraceae Stevia serrata Cav. var. serrata 1 0 0 0 0 0 0 0 0
Asteraceae Stevia tomentosa Kunth 0 0 0 0 0 1 0 1 0
Asteraceae Stevia viscida Kunth 1 1 0 1 0 1 0 1 1
Asteraceae Tagetes micrantha Cav. 0 0 1 0 0 1 1 1 1
Asteraceae Tagetes parryi A. Gray 0 0 0 1 0 0 0 0 0
Asteraceae Thelesperma longipes A. Gray 1 1 0 0 0 0 0 0 1
Asteraceae Thymophylla setifolia Lag. 1 0 1 0 0 0 0 0 0
Asteraceae Trixis angustifolia DC. 1 1 1 0 1 1 0 1 1
Asteraceae Verbesina coulteri A. Gray 0 0 0 1 0 0 1 0 0
Asteraceae Verbesina longipes Hemsl. 1 0 0 0 1 1 0 0 0
Asteraceae Verbesina sororia A. Gray 1 0 1 0 0 0 0 0 0
Asteraceae Vernonia greggii A. Gray 1 1 0 1 1 0 0 0 0
Asteraceae Viguiera dentata (Cav.) Spreng. 1 1 0 1 1 0 0 0 0
Asteraceae Zaluzania triloba (Ortega) Pers. 1 0 0 1 1 1 0 0 0
Asteraceae Zexmenia fasciculata (DC.) Sch. Bip. 0 0 0 0 0 0 1 0 0
Asteraceae Zinnia juniperifolia (DC.) A. Gray 1 0 1 0 1 0 1 0 0
Asteraceae Zinnia peruviana (L.) L. 1 0 0 1 1 1 0 1 0
Berberidaceae Berberis trifoliolata Mori. 1 1 0 1 1 1 0 1 1
Bignoniaceae Chilopsis linearis (Cav.) Sweet 0 1 0 0 0 0 0 0 0
Bignoniaceae Tecoma stans (L.) Juss. ex Kunth 1 1 1 0 0 1 0 0 1
Boraginaceae Antiphytum heliotropioides A. DC. 1 1 0 1 1 0 0 0 0
Brassicaceae Halimolobos lasioloba O. E. Schulz 0 0 0 0 1 0 0 0 0
Brassicaceae Halimolobos palmeri O. E. Schulz 0 0 0 0 1 0 1 0 1
Brassicaceae Halimolobos rigidus Rollins 0 0 0 0 1 0 0 0 0
Brassicaceae Physaria argyraea (A. Gray) O'Kane & Al-Shehbaz 0 0 1 1 0 1 0 1 1
Brassicaceae Sphaerocardamum divaricatum (Rollins) Rollins 0 0 0 0 1 0 1 0 0
Bromeliaceae Hechtia glomerata Zucc. 1 1 1 1 1 1 0 1 1
Bromeliaceae Hechtia podantha Mez. 1 1 1 0 0 0 0 0 0
Bromeliaceae Hechtia texensis S. Watson 1 0 0 0 0 0 0 0 1
Bromeliaceae Tillandsia erubescens Schltdl. 1 0 0 1 1 0 1 0 0
Bromeliaceae Tillandsia recurvata (L.) L. 1 1 0 1 1 1 1 1 1
Bromeliaceae Tillandsia suesilliae W. Till, López-Ferr. & Espejo 0 0 0 1 0 0 0 0 0
Bromeliaceae Tillandsia usneoides (L.) L. 1 1 0 1 1 0 1 1 1
Burseraceae Bursera fagaroides (Kunth) Engl. 1 0 1 1 1 1 0 1 1
Burseraceae Bursera schlechtendalii Engl. 1 0 1 0 0 0 0 0 0
Cactaceae Ariocarpus agavoides (Castañeda) E.F. Anderson 1 1 1 1 0 0 0 0 0
Cactaceae Ariocarpus bravoanus H. M. Hern. & E. F.Anderson 1 0 0 1 0 0 0 0 0
Cactaceae Ariocarpus bravoanus subsp. hintonii (Stuppy & N. P. Taylor) F. Anderson & Fitz Maurice 0 0 0 0 1 0 0 0 0
Cactaceae Ariocarpus trigonus (F. A. C. Weber) K. Schum. 1 0 0 1 0 0 0 0 0
Cactaceae Astrophytum capricorne (A. Dietr.) Britton & Rose 1 1 0 0 1 0 0 0 0
Cactaceae Coryphantha delicata L. Bremer 0 0 0 0 0 1 0 0 0
Cactaceae Coryphantha georgii Boed. 1 1 0 1 0 0 0 0 0
Cactaceae Coryphantha macromeris (Engelm.) Lem. 0 0 0 0 1 0 0 0 1
Cactaceae Coryphantha potosiana (Jacobi) Glass & R. A. Foster 0 0 0 0 0 0 0 1 1
Cactaceae Coryphantha pulleineana (Backeb.) Glass 1 0 0 0 0 0 0 0 0
Cactaceae Coryphantha wohlschlageri Holzeis 1 1 0 0 0 0 0 0 0
Cactaceae Cumarinia odorata (Boed.) Buxb. 1 0 1 0 0 0 0 0 0
Cactaceae Cylindropuntia imbricata (Haw.) F. M. Knuth 1 1 1 0 1 1 0 1 1
Cactaceae Cylindropuntia leptocaulis (DC.) F. M. Knuth 1 1 1 0 0 1 0 0 0
Cactaceae Echinocactus platyacanthus Link & Otto 1 1 1 1 1 0 1 1 1
Cactaceae Echinocereus knippelianus Liebner 1 0 1 1 0 0 0 0 1
Cactaceae Echinocereus parkeri N. P. Taylor 1 0 1 0 0 0 0 0 0
Cactaceae Echinocereus pectinatus (Scheidw.) Engelm. 1 1 1 1 0 1 1 1 1
Cactaceae Echinocereus pectinatus (Scheidw.) Engelm. subsp. pectinatus 0 0 0 0 1 1 0 0 0
Cactaceae Echinocereus pentalophus (DC.) Lem. 1 0 1 1 1 0 0 1 0
Cactaceae Ferocactus echidne (DC.) Britton & Rose 1 0 1 0 0 0 0 0 1
Cactaceae Ferocactus glaucescens (DC.) Britton & Rose 1 0 1 0 0 0 0 0 0
Cactaceae Ferocactus histrix (DC.) G. E. Linds. 1 1 1 1 1 1 0 1 1
Cactaceae Ferocactus latispinus (Haw.) Britton & Rose 1 1 1 1 1 1 1 1 1
Cactaceae Ferocactus pilosus (Galeotti) Werderm. 1 0 1 0 1 0 1 0 0
Cactaceae Glandulicactus uncinatus (Galeotti ex Pfeiff.) Backeb. 0 0 1 1 0 0 1 0 0
Cactaceae Mammillaria albicoma Boed. 1 0 1 0 0 0 0 0 0
Cactaceae Mammillaria crinita subsp. leucantha (Boed.) D. R. Hunt 1 0 0 0 0 1 0 0 0
Cactaceae Mammillaria erythrosperma Boed. 0 0 0 1 0 0 0 0 0
Cactaceae Mammillaria geminispina Haw. 1 0 1 1 0 0 0 0 0
Cactaceae Mammillaria heyderi Muehlenpf. 1 1 1 0 1 0 0 0 1
Cactaceae Mammillaria klissingiana Boed. 1 0 1 1 0 0 0 0 0
Cactaceae Mammillaria lloydii (Britton & Rose) Orcutt 0 0 0 0 1 1 0 0 0
Cactaceae Mammillaria magnimamma Haw. 1 1 0 0 0 1 0 1 1
Cactaceae Mammillaria muehlenpfordtii C. F. Först. 0 0 0 1 0 1 1 0 0
Cactaceae Mammillaria nana Backeb. 0 0 0 0 0 1 1 0 0
Cactaceae Mammillaria orcuttii Boed. 0 0 0 1 0 1 0 1 1
Cactaceae Mammillaria picta Meinsh. 1 0 0 0 0 0 0 0 0
Cactaceae Mammillaria pilispina J. A. Purpus 1 1 1 0 0 0 0 0 0
Cactaceae Mammillaria schiedeana subsp. dumetorum (J. A. Purpus) D. R. Hunt 1 0 0 0 0 0 0 0 0
Cactaceae Mammillaria uncinata Zucc. ex Pfeiff. 1 0 0 0 0 1 1 1 1
Cactaceae Mammilloydia candida (Scheidw.) Buxb. 1 0 1 0 1 0 1 1 1
Cactaceae Myrtillocactus geometrizans (Mart. ex Pfeiff.) Console 1 0 1 1 1 1 0 1 1
Cactaceae Neolloydia conoidea (DC.) Britton & Rose 1 0 1 0 1 0 1 1 0
Cactaceae Opuntia cantabrigiensis Lynch 0 0 0 0 1 0 1 0 0
Cactaceae Opuntia engelmannii Salm-Dyck ex Engelm. 1 0 1 0 1 1 0 1 0
Cactaceae Opuntia engelmannii var. cuija Griffiths & Hare 0 0 0 0 1 0 0 0 0
Cactaceae Opuntia imbricata (Haw.) DC. 1 1 1 0 1 1 1 0 1
Cactaceae Opuntia lasiacantha Pfeiff. 1 0 1 1 0 1 0 1 0
Cactaceae Opuntia megarhiza Rose 1 0 0 1 0 0 0 0 0
Cactaceae Opuntia megarhiza subsp. pachyrrhiza (H.M. Hern., Gomez-Hin. & Barcenas) U. Guzmán & Mandujano 1 0 0 0 0 0 0 0 0
Cactaceae Opuntia rastrera F. A. C. Weber 1 1 1 1 1 1 1 1 1
Cactaceae Opuntia robusta H. Wendl. ex Pfeiff. 1 0 1 1 1 1 1 1 1
Cactaceae Opuntia stenopetala Engelm. 1 1 0 0 1 1 1 1 0
Cactaceae Opuntia streptacantha Lem. 1 1 1 0 1 1 1 1 1
Cactaceae Opuntia tomentosa Salm-Dyck 1 0 1 0 0 1 0 0 1
Cactaceae Pelecyphora pseudopectinata Backeb. 0 1 0 0 0 0 0 0 0
Cactaceae Stenocactus dichroacanthus (Mart.) A. Berger ex Backeb. & F. M. Knuth 0 0 1 0 1 1 0 0 0
Cactaceae Stenocactus pentacanthus (Lem.) Berger ex Backeb. & Knuth 0 0 1 1 0 1 1 1 1
Cactaceae Stenocereus griseus (Haw.) Buxb. 1 1 0 0 0 0 0 0 0
Cactaceae Thelocactus conothelos (Regel & Klein bis) F. M. Knuth 0 0 1 0 0 0 0 0 0
Cactaceae Thelocactus conothelos subsp. flavus (Mosco & Zanov.) Mosco & Zanov. 1 0 0 0 0 0 0 0 0
Cactaceae Thelocactus panarottoanus Halda 1 0 0 0 0 0 0 0 0
Cactaceae Thelocactus tulensis (Poselg.) Britton & Rose 1 0 1 0 1 0 0 0 0
Cactaceae Turbinicarpus pseudopectinatus (Backeb.) Glass & R. A. Foster 1 0 1 0 0 0 0 0 0
Cactaceae Turbinicarpus schmiedickeanus (Boed.) Buxb. & Backeb. 1 0 1 0 1 0 0 0 0
Cactaceae Turbinicarpus schmiedickeanus subsp. andersonii Mosco 1 1 0 0 0 0 0 0 0
Cactaceae Turbinicarpus schmiedickeanus subsp. flaviflorus (G. Frank & A. B. Lau) Glass & R. A. Foster 1 0 0 0 0 0 0 0 0
Cactaceae Turbinicarpus viereckii (Werderm.) John & Ríha 1 1 0 0 0 0 0 0 0
Caprifoliaceae Abelia coriacea Hemsl. 1 1 1 0 0 0 0 0 0
Caprifoliaceae Valeriana albonervata B. L. Rob. 1 0 0 1 0 1 1 0 0
Caryophyllaceae Arenaria lycopodioides Willd. ex D. F. K. Schltdl. 1 0 0 0 1 1 1 1 1
Caryophyllaceae Cardionema ramosissimmum (Weinm.) A. Nelson & J. F. Macbr. 0 0 0 0 0 1 0 1 0
Caryophyllaceae Cerdia virescens Moç. & Sessé ex DC. 0 0 0 0 0 1 0 1 1
Caryophyllaceae Drymaria arenarioides Humb. & Bonpl. ex Schult. 0 0 0 1 1 1 1 1 0
Caryophyllaceae Drymaria villosa Schltdl. & Cham. 1 0 0 0 0 1 1 1 1
Caryophyllaceae Paronychia mexicana Hemsl. 1 0 1 0 0 0 1 1 1
Celastraceae Orthosphenia mexicana Standl. 1 1 1 1 1 0 0 0 0
Cistaceae Helianthemum glomeratum (Lag.) Lag. 1 0 0 1 1 1 1 1 1
Cistaceae Helianthemum patens Hemsl. 0 0 0 1 0 1 1 1 1
Commelinaceae Commelina dianthifolia Delile 1 0 0 0 0 1 1 1 1
Commelinaceae Commelina erecta L. 1 0 0 1 0 0 1 1 1
Commelinaceae Commelina erecta var. angustifolia (Michx.) Fern. 0 0 0 0 1 0 0 0 0
Commelinaceae Commelina tuberosa L. 0 0 0 1 0 1 0 1 0
Commelinaceae Gibasis karwinskyana (Schult. f.) Rohweder 1 0 0 1 0 0 0 0 1
Commelinaceae Gibasis linearis (Benth.) Rohweder 0 1 1 0 1 1 0 1 0
Commelinaceae Gibasis pulchella (Kunth) Raf. 0 0 0 0 0 1 0 1 0
Commelinaceae Tradescantia brachyphylla Greenm. 1 0 0 0 0 0 0 0 0
Commelinaceae Tradescantia crassifolia Cav. 1 0 0 1 1 0 1 1 1
Commelinaceae Tradescantia nuevoleonensis Matuda 1 0 0 1 0 1 0 0 0
Convolvulaceae Cuscuta applanata Engelm. 0 0 0 0 1 0 0 1 0
Convolvulaceae Cuscuta glabrior (Engelm.) Yunck. 0 0 0 0 1 0 0 0 1
Convolvulaceae Dichondra argentea Humb. & Bonpl. ex Willd. 1 0 0 1 1 1 1 1 1
Convolvulaceae Evolvulus alsinoides (L.) L. 0 0 0 1 0 1 0 1 0
Convolvulaceae Ipomoea orizabensis (Pelletan) Ledeb. ex Steud. var. orizabensis 1 0 0 1 0 0 0 0 0
Convolvulaceae Ipomoea purpurea (L.) Roth 1 0 0 1 1 1 0 1 1
Convolvulaceae Ipomoea sescossiana Baill. 0 0 0 1 1 0 0 0 0
Convolvulaceae Ipomoea stans Cav. 1 0 1 1 1 1 1 1 1
Cornaceae Cornus disciflora Moc. & Sessé ex DC. 1 0 0 1 1 0 0 0 0
Crassulaceae Echeveria coccinea (Cav.) DC. 0 0 0 0 1 0 0 1 0
Crassulaceae Echeveria humilis Rose 0 0 0 1 0 0 0 0 1
Crassulaceae Echeveria lutea Rose 1 1 0 1 0 0 0 0 0
Crassulaceae Echeveria mucronata Schltdl. 0 0 0 1 1 0 1 1 0
Crassulaceae Echeveria palmeri Rose 0 0 0 1 0 0 0 0 0
Crassulaceae Echeveria schaffneri (S. Watson) Rose 1 0 0 0 0 1 0 0 1
Crassulaceae Echeveria walpoleana Rose 1 0 0 1 0 0 0 0 0
Crassulaceae Sedum catorce G. L. Nesom 0 0 0 1 1 0 0 0 0
Crassulaceae Sedum diffusum S. Watson 0 0 0 1 0 0 0 0 0
Crassulaceae Sedum furfuraceum Moran 0 0 0 1 0 1 0 1 0
Crassulaceae Sedum retusum Hemsl. 0 0 0 1 0 1 0 1 0
Crassulaceae Villadia aristata Moran 0 0 1 1 0 0 1 0 0
Crassulaceae Villadia cucullata Rose 1 0 1 0 0 1 0 0 0
Crassulaceae Villadia patula Moran & C. H. Uhl 0 0 0 1 0 0 0 0 0
Cucurbitaceae Apodanthera undulata A. Gray 0 0 1 0 0 0 1 0 0
Cucurbitaceae Ibervillea tenuisecta (A. Gray) Small 1 0 0 1 1 0 0 0 1
Cupressaceae Cupressus arizonica Greene var. arizonica 0 0 1 1 1 0 0 0 1
Cupressaceae Juniperus flaccida Schltdl. 1 0 1 1 0 0 0 0 0
Cupressaceae Juniperus monticola Martínez 0 1 0 0 0 0 0 0 0
Cupressaceae Juniperus sabinoides (Kunth) Nees 0 0 0 0 1 0 0 0 0
Cyperaceae Carex schiedeana Kuntze 1 1 1 1 1 0 1 0 0
Cyperaceae Cyperus seslerioides Kunth 0 0 0 1 0 1 1 1 1
Cyperaceae Cyperus spectabilis Link 0 1 0 0 0 1 1 1 1
Ebenaceae Diospyros texana Scheele 1 1 0 0 0 0 0 0 0
Ehretiaceae Tiquilia hispidissima (Torr. & A. Gray) A. T. Richardson 1 0 1 0 0 0 0 0 0
Ephedraceae Ephedra aspera Engelm. ex S. Watson. 1 1 1 0 1 0 1 0 0
Ephedraceae Ephedra compacta Rose 0 0 0 1 1 0 0 1 1
Ericaceae Arbutus xalapensis Kunth 1 1 1 1 1 1 0 0 0
Ericaceae Arctostaphylos pungens Kunth 1 1 1 1 1 1 0 1 1
Ericaceae Comarostaphylis polifolia (Kunth) Zucc. ex Klotzsch 1 0 1 0 1 0 0 0 1
Euphorbiaceae Acalypha hederacea Torr. 1 1 0 0 0 0 0 0 1
Euphorbiaceae Acalypha monostachya Cav. 1 0 1 1 1 1 0 1 0
Euphorbiaceae Acalypha phleoides Cav. 0 0 0 1 0 1 1 0 0
Euphorbiaceae Croton ciliatoglandulifer Ortega 1 0 0 1 0 1 0 1 0
Euphorbiaceae Croton dioicus Cav. 1 1 0 0 0 0 1 1 1
Euphorbiaceae Croton hypoleucus Schltdl. 1 1 1 0 0 0 0 0 0
Euphorbiaceae Croton incanus Kunth 1 1 0 1 1 0 0 0 0
Euphorbiaceae Croton pottsii (Klotzsch) Müll. 1 0 1 1 0 0 1 0 0
Euphorbiaceae Croton sancti-lazari Croizat 1 0 0 0 0 0 0 0 0
Euphorbiaceae Euphorbia antisyphilitica Zucc. 1 1 0 0 1 0 0 0 1
Euphorbiaceae Euphorbia anychioides Boiss. 0 0 0 0 0 1 0 1 0
Euphorbiaceae Euphorbia furcillata Kunth 1 0 0 1 0 0 1 0 1
Euphorbiaceae Euphorbia furcillata var. ribana M. C. Johnst. 0 0 0 0 1 0 0 0 0
Euphorbiaceae Euphorbia hirta L. 0 0 0 0 0 0 1 0 1
Euphorbiaceae Euphorbia macropus (Klotzsch & Garcke) Boiss. 1 0 0 0 0 1 1 1 1
Euphorbiaceae Jatropha dioica Sessé ex Cerv. 1 1 1 1 1 1 1 1 1
Euphorbiaceae Stillingia bicarpellaris S. Watson 0 0 0 0 1 0 0 0 0
Euphorbiaceae Tragia ramosa Torr. 1 0 0 1 0 0 0 0 0
Fabaceae Astragalus coriaceus Hemsl. 0 1 0 0 1 0 1 0 0
Fabaceae Astragalus mollissimus Torr. 0 0 0 0 0 0 1 0 1
Fabaceae Bauhinia coulteri J. F. Macbr. var. coulteri 1 0 1 1 0 0 0 0 0
Fabaceae Bauhinia ramosissima Benth. ex Hemsl. var. ramosissima 1 1 1 0 0 0 0 0 0
Fabaceae Bauhinia ramosissima var. uniflora (S. Watson) M.P. Ramírez & R. Torres 1 0 0 0 0 0 0 0 0
Fabaceae Brongniartia intermedia Moric. 1 0 1 0 0 0 0 1 1
Fabaceae Calliandra conferta Benth. 1 1 1 0 0 0 0 0 0
Fabaceae Calliandra eriophylla Benth. 1 0 0 1 0 1 0 0 1
Fabaceae Calliandra eriophylla Benth. var. eriophylla 0 0 0 0 1 0 0 0 0
Fabaceae Cologania angustifolia Kunth 1 1 1 1 0 0 0 0 0
Fabaceae Crotalaria cajanifolia Kunth 1 0 0 0 0 0 0 0 1
Fabaceae Dalea bicolor Humb. & Bonpl. ex Willd. 1 1 1 1 1 1 1 1 1
Fabaceae Dalea foliolosa (Aiton) Barneby 0 0 1 1 0 0 1 1 1
Fabaceae Dalea greggii A. Gray 1 1 1 0 0 0 0 1 1
Fabaceae Dalea lutea (Cav.) Willd. 1 1 0 1 0 1 1 1 1
Fabaceae Dalea lutea (Cav.) Willd. var. lutea 1 0 0 0 1 0 0 0 0
Fabaceae Dalea tuberculata Lag. 0 0 0 0 1 0 0 0 0
Fabaceae Dermatophyllum secundiflorum (Ortega) Gandhi & Reveal 1 1 0 1 1 0 0 0 1
Fabaceae Desmodium grahamii A. Gray 1 0 0 1 0 1 0 1 0
Fabaceae Eysenhardtia polystachya (Ortega) Sarg. 1 0 1 0 1 1 0 1 0
Fabaceae Eysenhardtia schizocalyx Pennell 1 0 0 0 0 0 0 0 0
Fabaceae Mariosousa mammifera (Schltdl.) Seigler & Ebinger 1 0 0 0 0 0 0 0 0
Fabaceae Mimosa aculeaticarpa Ortega 1 1 0 1 1 1 1 1 0
Fabaceae Mimosa biuncifera Benth. 0 0 0 1 1 1 1 1 1
Fabaceae Mimosa minutifolia B. L. Rob. & Greenm. 0 0 0 0 0 1 0 1 0
Fabaceae Mimosa zygophylla Benth. 1 0 1 0 1 1 1 0 1
Fabaceae Nissolia wislizenii (A. Gray) A. Gray 0 0 0 0 0 1 0 1 0
Fabaceae Painteria leptophylla (DC.) Britton & Rose 0 0 0 0 0 1 0 1 0
Fabaceae Phaseolus gladiolatus Freytag & Debouck 1 0 0 0 0 0 0 0 0
Fabaceae Prosopis laevigata (Humb. & Bonpl. ex Willd.) M.C. Johnst. 1 0 1 0 1 1 0 1 0
Fabaceae Senegalia berlandieri (Benth.) Britton & Rose 1 1 1 0 1 0 0 0 0
Fabaceae Senegalia roemeriana (Scheele) Britton y Rose 1 1 0 0 1 0 0 0 0
Fabaceae Senna wislizeni (A. Gray) Irwin & Barneby 1 1 1 0 1 1 0 0 0
Fabaceae Sophora secundiflora (Ortega) Lag. ex DC. 1 1 0 1 1 1 0 0 1
Fabaceae Vachellia constricta (Benth.) Seigler y Ebinger 0 0 1 0 1 0 0 1 0
Fabaceae Vachellia farnesiana (L.) Wight y Arn. var. farnesiana 0 0 1 0 1 1 0 1 0
Fabaceae Vachellia schaffneri (S. Watson) Seigler & Ebinger 1 1 1 0 1 1 1 1 1
Fabaceae Zornia thymifolia Kunth 1 0 1 0 0 1 0 1 1
Fagaceae Quercus affinis Scheidw. 1 1 0 0 1 0 0 0 0
Fagaceae Quercus castanea Née 1 1 0 1 0 0 0 0 0
Fagaceae Quercus chihuahuensis Trel. 0 0 1 0 1 1 0 0 0
Fagaceae Quercus cordifolia Trel. 0 0 0 0 0 0 1 0 0
Fagaceae Quercus crassifolia Bonpl. 1 1 0 0 0 1 0 1 1
Fagaceae Quercus depressipes Trel. 0 0 1 0 1 1 1 0 0
Fagaceae Quercus deserticola Trel. 1 1 1 1 1 1 0 0 0
Fagaceae Quercus diversifolia Née 0 0 0 0 1 0 0 0 0
Fagaceae Quercus eduardi Trel. 1 1 1 0 1 1 1 0 1
Fagaceae Quercus greggii (A. DC.) Trel. 1 1 0 0 1 0 0 0 1
Fagaceae Quercus grisea Liebm. 0 0 1 0 1 1 0 1 1
Fagaceae Quercus hintoniorum Nixon & C. H. Müller 0 0 0 0 1 0 0 0 0
Fagaceae Quercus intricata Trel. 0 0 1 0 1 0 0 0 0
Fagaceae Quercus laeta Liebm. 1 1 0 1 1 1 0 0 0
Fagaceae Quercus laurina Bonpl. 1 0 0 1 0 0 0 0 0
Fagaceae Quercus mexicana Bonpl. 0 0 0 0 1 1 0 0 0
Fagaceae Quercus microphylla Née 0 1 1 0 1 0 0 0 1
Fagaceae Quercus potosina Trel. 1 1 0 0 0 1 1 1 1
Fagaceae Quercus pringlei Seemen 1 1 0 0 1 1 0 0 1
Fagaceae Quercus pungens Liebm. 0 0 1 0 1 0 0 0 0
Fagaceae Quercus resinosa Liebm. 1 0 0 0 0 0 0 0 0
Fagaceae Quercus rugosa Née 0 0 0 1 1 1 1 0 0
Fagaceae Quercus striatula Trel. 1 0 0 1 0 0 0 0 0
Fagaceae Quercus tinkhamii C. H. Müll 1 0 0 0 1 0 0 0 0
Fouquieriaceae Fouquieria splendens Engelm. 1 1 1 0 1 0 0 0 1
Fouquieriaceae Fouquieria splendens subsp. breviflora Henrickson 1 0 0 0 0 0 0 0 0
Fouquieriaceae Fouquieria splendens subsp. campanulata (Nash) Henrickson 1 0 0 0 0 0 0 0 0
Garryaceae Garrya laurifolia Hartw. ex Benth. 0 1 1 1 1 0 0 0 0
Garryaceae Garrya laurifolia subsp. macrophylla (Benth.) Dahling 1 1 0 0 0 0 0 0 0
Garryaceae Garrya ovata Benth 0 1 0 1 1 1 1 1 0
Garryaceae Garrya ovata subsp. mexicana Dahling 0 0 0 0 1 0 0 0 1
Geraniaceae Erodium cicutarum (L.) L'Hér. ex Aiton 0 0 0 0 1 0 1 1 0
Iridaceae Sisyrinchium scabrum Cham. & Schltdl. 0 0 0 1 0 1 0 0 1
Iridaceae Sisyrinchium tenuifolium Humb. & Bonpl. ex Willd. 0 0 0 1 0 0 1 0 1
Iridaceae Tigridia potosina López-Ferr. & Espejo 0 0 0 1 0 0 0 0 0
Krameriaceae Krameria cytisoides Cav. 1 1 0 1 1 0 1 1 1
Lamiaceae Hedeoma drummondii Benth. 1 0 0 1 1 0 0 0 0
Lamiaceae Poliomintha longiflora A. Gray 0 0 1 1 1 0 0 0 0
Lamiaceae Poliomintha marifolia (S. Schauer) A. Gray 1 1 0 1 0 0 0 0 0
Lamiaceae Salvia axillaris Moc. & Sessé ex Benth. 0 0 0 1 0 1 1 1 1
Lamiaceae Salvia ballotiflora Benth 1 1 0 1 1 1 1 1 0
Lamiaceae Salvia chamaedryoides Cav. 0 0 0 0 1 1 1 0 0
Lamiaceae Salvia coccinea Buc’hoz ex Etl. 1 1 1 0 0 0 0 0 0
Lamiaceae Salvia connivens Epling 1 0 0 1 0 0 0 0 0
Lamiaceae Salvia greggii A. Gray 0 0 1 1 1 0 0 0 0
Lamiaceae Salvia isochroma (Fernald) B. L. Turner 0 0 0 0 1 0 1 0 0
Lamiaceae Salvia keerlii Benth. 1 1 0 1 1 0 0 0 0
Lamiaceae Salvia lycioides A. Gray 0 0 0 1 1 1 0 1 0
Lamiaceae Salvia melissodora Lag. 1 0 1 0 0 0 0 0 0
Lamiaceae Salvia mexicana L. 1 1 1 1 1 0 0 0 0
Lamiaceae Salvia microphylla Kunth 1 0 1 0 1 1 0 1 1
Lamiaceae Salvia pennellii Epling 0 0 0 1 1 0 0 0 0
Lamiaceae Salvia podadena Briq. 0 0 0 0 0 1 0 0 0
Lamiaceae Salvia regla Cav. 1 1 0 1 1 1 0 1 1
Lamiaceae Salvia tiliifolia Vahl 1 0 1 0 1 0 0 1 0
Lamiaceae Scutellaria hispidula B. L. Rob. 0 0 0 1 0 0 0 0 0
Lamiaceae Stachys sandersii B. L. Turner 0 0 0 1 0 0 0 0 0
Lauraceae Litsea glaucescens Kunth 1 1 0 1 1 1 0 0 1
Lauraceae Litsea novoleontis Bartlett 1 0 0 1 0 0 0 0 0
Lentibulariaceae Pinguicula debbertiana Speta & F. Fuchs 1 0 1 0 0 0 0 0 0
Lentibulariaceae Pinguicula ehlersiae Speta & F. Fuchs 1 0 0 1 0 0 0 0 0
Lentibulariaceae Pinguicula esseriana B. Kirchn. 1 0 0 0 0 0 0 0 0
Lentibulariaceae Pinguicula kondoi Casper 1 0 0 0 0 0 0 0 0
Linaceae Linum rupestre (A. Gray) Engelm. ex A. Gray 0 0 1 1 0 0 1 0 0
Linaceae Linum scabrellum Planch. 1 0 0 1 0 0 0 0 0
Linaceae Linum schiedeanum Schltdl. & Cham. 1 0 1 0 0 0 0 0 0
Linaceae Linum vernale Wooton 1 0 0 0 0 0 0 0 0
Loasaceae Mentzelia aspera L. 1 0 0 1 0 0 1 1 0
Loasaceae Mentzelia hispida Willd. 1 0 0 1 1 1 0 1 0
Malpighiaceae Mascagnia sericea Nied. 1 1 1 0 0 0 0 0 0
Moraceae Morus celtidifolia Kunth 1 1 0 1 1 0 0 0 0
Nyctaginaceae Cyphomeris gypsophiloides (M. Martens. & Galeotti) Standl. 1 0 0 1 1 0 0 0 0
Oleaceae Forestiera angustifolia Torr. 0 0 1 1 1 0 0 0 0
Oleaceae Forestiera reticulata Torr. 1 1 0 0 1 0 0 0 0
Oleaceae Fraxinus greggii A. Gray var. greggii 1 1 1 0 1 0 0 0 1
Oleaceae Fraxinus potosina Brandegee 1 0 1 1 0 0 0 0 0
Oleaceae Menodora coulteri A. Gray 1 1 1 0 1 1 0 0 0
Oleaceae Menodora coulteri A. Gray var. coulteri 1 0 0 0 0 0 0 0 0
Oleaceae Menodora coulteri var. minima Steyerm. 1 0 0 0 0 0 0 0 0
Oleaceae Menodora scabra A. Gray 1 1 1 1 1 0 0 1 1
Orchidaceae Govenia lagenophora Lindl. 0 0 0 1 0 0 0 0 0
Orchidaceae Spiranthes graminea Lindl. ex Benth. 1 0 0 0 0 0 0 0 0
Orobanchaceae Aureolaria greggii (S. Watson.) Pennell 1 0 0 1 0 0 1 0 0
Orobanchaceae Castilleja arvensis Schltdl. & Cham. 1 1 0 1 0 0 0 0 0
Orobanchaceae Castilleja rigida Eastw. 1 0 1 1 0 0 0 0 0
Orobanchaceae Castilleja tenuiflora Benth 1 1 1 1 1 1 1 0 0
Oxalidaceae Oxalis albicaulis(Rose) Rose ex R. Knuth 0 0 0 0 1 0 1 0 0
Oxalidaceae Oxalis corniculata L. 1 0 0 1 1 0 0 1 0
Oxalidaceae Oxalis decaphylla Kunth 0 0 0 1 0 1 0 1 1
Oxalidaceae Oxalis latifolia Kunth 1 0 0 1 0 0 0 0 0
Papaveraceae Argemone fruticosa Thurb. ex A. Gray 0 0 0 0 1 0 0 1 1
Phytolaccaceae Phytolacca icosandra L. 1 0 0 0 0 0 1 0 0
Pinaceae Pinus cembroides Zucc. 0 0 1 1 1 1 0 1 1
Pinaceae Pinus discolor D.K. Bailey & Hawksw. 0 0 0 0 0 0 0 1 0
Pinaceae Pinus johannis Rob.-Pase. 0 0 0 0 0 0 1 0 1
Pinaceae Pinus greggii Engelm. ex Parl. 0 0 0 1 1 0 0 0 0
Pinaceae Pinus nelsonii Shaw. 0 1 0 0 0 0 0 0 0
Pinaceae Pinus pinceana Gordon. & Glend. 1 0 0 0 0 0 0 0 0
Pinaceae Pinus pseudostrobus Lindl. 1 1 0 1 0 0 0 0 0
Plantaginaceae Maurandya antirrhiniflora Humb. & Bonpl. ex Willd. 1 0 0 1 0 0 0 0 0
Plantaginaceae Maurandya barclayana Lindl. 1 0 0 1 0 1 0 1 0
Plantaginaceae Penstemon barbatus (Cav.) Roth 0 0 1 1 0 0 1 0 1
Plantaginaceae Penstemon barbatus var. wislizeni A. Gray 0 0 0 0 1 0 0 0 0
Plantaginaceae Penstemon lanceolatus Benth. 1 0 0 0 0 0 1 0 0
Plantaginaceae Penstemon potosinus Straw 0 0 0 0 0 0 1 0 0
Plantaginaceae Plantago linearis Kunth 0 0 0 0 1 0 0 0 1
Plantaginaceae Plantago nivea Kunth 0 0 1 1 1 1 1 1 0
Plantaginaceae Russelia coccinea (L.) Wetts. 1 0 0 0 0 0 0 0 0
Plantaginaceae Russelia polyedra Zucc. 1 0 1 0 0 0 0 0 0
Poaceae Achnatherum eminens (Cav.) Barkworth 0 0 0 0 1 0 1 1 1
Poaceae Agropyron arizonicum Scribn. & Smith 0 0 0 0 1 0 0 0 0
Poaceae Aristida adscensionis L. 1 1 1 0 1 0 0 0 0
Poaceae Aristida barbata E. Fourn. 0 0 0 0 1 0 0 0 0
Poaceae Aristida divaricata Humb. & Bonpl. ex Willd. 0 0 1 0 0 1 1 1 1
Poaceae Aristida glauca (Nees) Walp. 0 1 0 0 0 0 1 0 1
Poaceae Aristida havardii vasey 0 0 1 0 0 1 0 1 0
Poaceae Aristida purpurea Nutt. Var. Purpurea 1 1 1 1 0 0 0 0 0
Poaceae Aristida schiedeana Trin. & Rupr. 1 0 0 1 1 1 0 1 1
Poaceae Aristida ternipes Cav. 0 1 0 0 1 0 0 0 1
Poaceae Bothriochloa barbinodis (Lag.) Herter 0 0 1 1 1 0 0 0 0
Poaceae Bothriochloa laguroides (DC.) Herter 1 0 1 1 0 0 0 0 0
Poaceae Bouteloua chasei Swallen 1 1 0 0 1 0 0 0 0
Poaceae Bouteloua curtipendula (Michx.) Torr. 0 1 1 1 0 1 1 1 1
Poaceae Bouteloua curtipendula (Michx.) Torr. var. curtipendula 1 0 0 0 0 0 0 0 0
Poaceae Bouteloua dactyloides (Nutt.) Columbus 1 0 0 1 1 1 1 0 0
Poaceae Bouteloua gracilis (Kunth) Lag. ex Griffiths 1 1 1 1 0 1 0 1 1
Poaceae Bouteloua hirsuta Lag. 0 1 1 1 1 1 1 1 0
Poaceae Bouteloua hirsuta Lag. var. hirsuta 1 0 0 0 0 0 0 0 0
Poaceae Bouteloua scorpioides Lag. 0 0 1 0 1 1 0 1 1
Poaceae Bouteloua trifida Thurb. ex S. Watson 0 0 0 0 1 0 0 0 0
Poaceae Bromus anomalus Rupr. ex E. Fourn. 0 1 0 0 1 1 0 1 1
Poaceae Chloris gayana Kunth 0 1 1 1 1 0 0 0 0
Poaceae Chloris submutica Kunth 0 0 1 1 1 0 1 0 0
Poaceae Chloris virgata Sw. 0 0 1 1 1 0 1 1 0
Poaceae Cynodon dactylon (L.) Pers. 0 0 1 1 1 1 0 1 1
Poaceae Enneapogon desvauxii P. Beauv. 1 0 0 0 1 0 1 0 1
Poaceae Eragrostis cilianensis (All.) Vignolo ex Janch. 0 0 1 0 1 1 0 0 0
Poaceae Eragrostis intermedia Hitchc. 0 0 0 0 1 1 1 1 0
Poaceae Eragrostis mexicana (Hornem.) Link 0 0 1 1 1 0 1 0 1
Poaceae Erioneuron avenaceum (Kunth) Tateoka 1 0 0 0 1 1 1 1 0
Poaceae Heteropogon contortus (L.) P. Beauv. 1 1 1 1 1 1 0 1 0
Poaceae Hilaria cenchroides Kunth 1 1 1 1 1 0 0 0 0
Poaceae Jarava ichu Ruiz & Pav. 0 0 0 0 1 1 0 0 0
Poaceae Leptochloa dubia (Kunth) Nees 1 0 1 1 0 0 1 1 0
Poaceae Melinis repens (Willd.) Zizka 1 0 1 1 0 1 0 1 1
Poaceae Microchloa kunthii Desv. 0 0 1 1 1 1 0 1 1
Poaceae Muhlenbergia distans Swalle. 0 0 0 0 1 0 1 0 0
Poaceae Muhlenbergia dubia E. Fourn. 1 0 1 1 1 1 1 1 0
Poaceae Muhlenbergia emersleyi Vasey 1 1 0 0 0 0 0 0 1
Poaceae Muhlenbergia firma Beal 0 0 0 1 0 0 1 1 0
Poaceae Muhlenbergia glauca (Nees) B. D. Jacks. 1 1 0 0 1 0 1 0 0
Poaceae Muhlenbergia gypsophila Reeder & C. Reeder 1 1 0 0 1 1 0 0 0
Poaceae Muhlenbergia microsperma (DC.) Kunth 1 1 0 1 1 0 1 0 1
Poaceae Muhlenbergia minutissima (Steud.) Swallen 0 0 0 0 1 0 0 0 0
Poaceae Muhlenbergia phleoides (Kunth) Columbus 1 1 0 0 1 1 1 1 0
Poaceae Muhlenbergia pubescens (Kunth) Hitchc. 0 0 1 1 1 1 1 1 0
Poaceae Muhlenbergia purpusii Mez 1 0 0 0 1 0 0 0 0
Poaceae Muhlenbergia quadridentata (Kunth) Trin. 0 0 0 0 0 1 0 1 0
Poaceae Muhlenbergia repens (J. Presl) Hitchc. 0 0 0 0 1 0 0 0 0
Poaceae Muhlenbergia rigida (Kunth) Kunth 1 1 1 1 1 1 1 1 1
Poaceae Muhlenbergia tenuifolia (Kunth) Kunth 0 0 0 0 1 0 1 0 0
Poaceae Muhlenbergia villiflora Hitch. var. villiflora 0 0 0 0 1 0 0 0 0
Poaceae Muhlenbergia villiflora Hitchc. 1 0 1 1 0 1 0 1 1
Poaceae Nassella leucotricha (Trin. & Rupr.) R.W. Pohl 1 0 1 1 1 0 0 0 0
Poaceae Nassella mucronata (Kunth) R.W. Pohl 0 0 1 1 1 0 0 1 1
Poaceae Nassella tenuissima (Trin.) Barkworth 0 0 1 1 1 0 1 0 0
Poaceae Pappophorum bicolor E. Fourn. 0 0 0 0 1 0 0 0 0
Poaceae Piptochaetium brevicalyx (E. Fourn.) Ricker 0 0 0 0 1 1 1 1 1
Poaceae Piptochaetium fimbriatum (Kunth) Hitchc. 1 1 1 1 1 1 0 1 1
Poaceae Rhynchelytrum repens (Willd.) C.E. Hubb. 0 0 0 0 1 1 0 1 0
Poaceae Schizachyrium sanguineum (Retz.) Alston 0 0 0 1 0 1 0 1 0
Poaceae Setaria geniculata P. Beauv. 0 0 0 0 1 0 0 0 0
Poaceae Setaria grisebachii E. Fourn. 1 0 0 0 1 0 0 0 0
Poaceae Setaria leucopila (Scribn. & Merr.) K. Schum. 1 0 0 1 1 1 0 0 0
Poaceae Setaria macrostachya Kunth 1 0 0 1 1 0 1 0 0
Poaceae Setaria parviflora (Poir.) Kerguélen 1 1 0 1 0 0 0 0 0
Poaceae Sohnsia filifolia (E. Fourn.) Airy Shaw 1 0 0 0 0 0 0 0 0
Poaceae Sorghastrum nutans (L.) Nash 0 0 0 0 1 0 0 0 0
Poaceae Sporobolus pyramidatus (Lam.) Hitchc. 0 0 0 0 0 1 0 1 1
Poaceae Trachypogon spicatus (L.F.) Kuntze 0 0 0 0 0 1 0 1 0
Poaceae Tridens muticus (Torr.) Nash 1 0 0 0 0 0 0 0 0
Polemoniaceae Giliastrum incisum (Benth.) J. M. Porter 0 0 0 1 1 0 0 0 0
Polemoniaceae Giliastrum stewartii (I. M. Johnst.) J. M. Porter 1 0 0 1 0 1 0 0 0
Polemoniaceae Loeselia caerulea (Cav.) G. Don 1 1 1 1 1 1 1 1 1
Polemoniaceae Loeselia mexicana (Lam.) Brand 0 0 1 1 0 1 0 1 0
Polygalaceae Polygala berlandieri S. Watson 0 0 0 0 0 0 1 0 0
Polygalaceae Polygala compacta Rose 1 0 0 0 0 1 0 1 1
Polygonaceae Eriogonum viscanum W. J. Hess & Reveal 0 0 0 0 1 0 0 0 1
Polypodiaceae Polypodium guttatum Maxon 0 0 0 0 1 0 1 0 1
Portulacaceae Portulaca pilosa L. 1 0 0 1 1 0 1 1 0
Pteridaceae Adiantum capillus-veneris L. 0 0 0 1 1 0 1 0 0
Pteridaceae Astrolepis sinuata (Lag. ex Sw.) D. M. Benham & Windham 1 0 1 0 0 1 0 1 0
Pteridaceae Cheilanthes bonariensis (Willd.) Proctor 0 0 0 0 0 0 1 1 0
Pteridaceae Cheilanthes pyramidalis Fée 1 0 0 0 0 1 0 0 0
Pteridaceae Notholaena aschenborniana Klotzsch 1 0 0 0 0 0 0 0 0
Pteridaceae Notholaena candida Var. copelandii (C. C. Hall) R.M. Tryon 1 0 1 1 0 0 1 1 1
Pteridaceae Pellaea cordifolia (Sessé & Moc.) A. R. Sm. 0 0 0 1 0 0 1 1 0
Pteridaceae Pellaea sagittata var. cordata (Cav.) A. F. Tryon 0 0 0 0 1 0 0 0 0
Pteridaceae Pellaea ternifolia (Cav.) Link 1 0 0 1 0 1 1 1 1
Ranunculaceae Thalictrum fendleri Engelm. ex A. Gray 1 1 0 0 0 0 0 0 0
Rhamnaceae Ceanothus greggii A. Gray 1 0 0 1 1 1 1 1 1
Rhamnaceae Colubrina ehrenbergii Schltdl. 1 0 0 0 1 0 0 0 0
Rhamnaceae Condalia fasciculata I. M. Johnst. 1 0 1 0 1 0 0 0 1
Rhamnaceae Condalia mexicana Schltdl. 1 1 1 0 1 0 0 1 1
Rhamnaceae Karwinskia mollis Schltdl. 1 1 1 0 1 0 0 0 1
Rosaceae Cercocarpus macrophyllus C. K. Schneid. 1 0 0 1 0 0 0 0 0
Rosaceae Cercocarpus montanus Raf 0 1 1 1 0 1 1 1 0
Rosaceae Cercocarpus montanus var. paucidentatus (S. Watson) F. L. Martin 0 0 0 0 1 0 0 0 0
Rosaceae Cercocarpus rzedowskii Henr. 1 0 1 0 0 0 0 0 0
Rosaceae Crataegus pubescens (C. Presl) C. Presl 0 1 0 0 1 0 0 0 0
Rosaceae Lachemilla aphanoides (Mutis ex L. f.) Rothm. 0 0 0 1 1 0 0 0 0
Rosaceae Lindleya mespiloides Kunth 1 1 1 1 1 0 1 0 1
Rosaceae Malacomeles denticulata (Kunth) G. N. Jones 1 1 1 0 1 0 1 0 0
Rosaceae Prunus microphylla (Kunth) Hemsl. 0 0 0 0 1 0 1 0 0
Rosaceae Prunus serotina subsp. capuli (Cav.) McVaugh 1 1 0 1 1 0 0 0 0
Rosaceae Vauquelinia corymbosa subsp. karwinskyi (Maxim.) W.J. Hess & Henrickson 0 0 0 0 1 0 0 0 0
Rosaceae Vauquelinia corymbosa subsp. saltilloensis W. J. Hess & Henrickson 1 1 0 0 0 0 0 0 0
Rubiaceae Bouvardia ternifolia (Cav.) Schltdl. 1 0 1 1 1 1 1 1 1
Rubiaceae Crusea diversifolia W. R. Anderson 0 0 1 0 1 1 1 1 0
Rubiaceae Galium pennellii Dempster 0 0 0 1 0 0 0 0 1
Rubiaceae Galium rzedowskii Dempster 1 0 0 0 0 0 0 0 0
Rubiaceae Galium uncinulatum DC. 0 0 0 1 1 0 0 1 1
Rutaceae Casimiroa pringlei (S. Watson) Engl. ex Engl. & Prantl 1 0 0 1 1 0 0 0 0
Rutaceae Choisya palmeri Standl. 0 0 0 0 1 0 0 0 0
Rutaceae Helietta parvifolia (A. Gray ex Hemsl.) Benth. 1 0 1 1 1 0 0 0 1
Rutaceae Ptelea trifoliata L. 1 1 0 1 1 0 1 0 1
Rutaceae Zanthoxylum fagara (L.) Sarg. 1 0 1 0 0 0 0 0 0
Salicaceae Neopringlea integrifolia (Hemsl.) S. Watson 1 0 0 1 1 0 0 0 0
Santalaceae Phoradendron brachystachyum (DC.) Nutt. 1 1 0 0 1 0 0 0 0
Santalaceae Phoradendron flavum I. M. Johnst. 0 0 0 0 1 0 0 0 0
Santalaceae Phoradendron lanceolatum Engelm. ex A. Gray 0 0 0 1 1 0 0 0 0
Sapindaceae Cardiospermum halicacabum L. 0 0 0 0 1 0 0 0 0
Sapindaceae Dodonaea viscosa (L.) Jacq. 1 1 1 1 1 1 1 1 1
Scrophulariaceae Buddleja cordata Kunth. 1 0 1 1 1 0 1 0 0
Scrophulariaceae Buddleja cordata subsp. tomentella (Standl.) E. M. Norman 1 0 0 0 0 0 0 0 0
Scrophulariaceae Buddleja scordioides Kunth. 0 0 1 1 0 0 1 1 1
Scrophulariaceae Leucophyllum pruinosum I. M. Johnst. 1 0 0 1 0 0 0 0 0
Scrophulariaceae Leucophyllum revolutum Rzed. 1 0 1 0 0 0 0 0 0
Selaginellaceae Selaginella pallescens var. acutifolia Stolze 0 0 1 0 1 0 0 0 0
Smilacaceae Smilax bona-nox L. 1 1 0 1 1 0 0 0 0
Solanaceae Nicotiana glauca Graham 1 0 1 1 1 1 1 1 0
Solanaceae Physalis pennellii Waterf. 0 0 0 0 1 0 0 0 0
Solanaceae Solanum rostratum Dunal 1 0 1 0 1 1 1 1 0
Solanaceae Solanum stoloniferum Schltdl. 0 0 0 1 0 1 1 1 0
Verbenaceae Aloysia gratissima (Gillies & Hook.) Tronc. 0 1 1 0 0 0 0 1 1
Verbenaceae Aloysia macrostachya (Torr.) Moldenke 1 0 1 1 0 0 0 0 0
Verbenaceae Citharexylum oleinum (Benth. ex Lindl.) Moldenke 1 0 0 0 1 0 0 0 1
Verbenaceae Glandularia bipinnatifida (Nutt.) Nutt. 1 0 0 1 0 1 0 0 0
Verbenaceae Lantana achyranthifolia Desf. 1 0 0 1 0 0 0 0 0
Verbenaceae Lantana camara L. 0 0 1 1 0 1 0 1 1
Verbenaceae Lantana hirta Graham 1 1 0 1 0 0 0 0 1
Verbenaceae Lantana macropoda Torr. 0 0 0 1 0 1 0 0 0
Verbenaceae Priva mexicana (L.) Pers. 1 0 0 1 1 0 0 0 0
Verbenaceae Verbena menthifolia Benth. 0 0 0 0 0 0 1 0 0
Violaceae Viola schaffneriana Becker 0 0 0 0 1 0 0 0 0
Zamiaceae Ceratozamia zaragozae Medellín-Leal 0 0 1 1 0 0 0 0 0

Received: March 22, 2022; Accepted: October 25, 2022

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