Chaffey's cory cactus |
Escobaria dasyacantha var. chaffeyi |
Plants |
Not Listed |
Not Listed |
G3T1 |
S1 |
False |
Pine-oak-juniper woodlands on rocky igneous and limestone soils at 1425-2225 m (4675-7300 ft).; flowering March-June; fruiting June-September |
dense cory cactus |
Escobaria dasyacantha var. dasyacantha |
Plants |
Not Listed |
Not Listed |
G3T3 |
S3 |
False |
Lechuguilla-sotol or creosote bush shrublands, grasslands, and oak-juniper woodlands on gravelly, rocky, and/or loamy soils over igneous or limestone substrates at moderate elevations 750-1800 m (2450-5900 ft) in the Chihuahuan Desert; flowering March-May (-July), fruiting (May-) June-August |
Duncan's cory cactus |
Escobaria dasyacantha var. duncanii |
Plants |
Not Listed |
Not Listed |
G3T2T3 |
S1S2 |
False |
Chihuahuan Desert scrub at low to moderate elevations 650-1825 m (2150-6000 ft) on hills, ledges, and benches in cracks and crevices of limestone outcrops; flowering February-March (-May, or July in New Mexico), fruiting mostly May-June |
Guadalupe Mountains pincushion cactus |
Escobaria guadalupensis |
Plants |
Not Listed |
Not Listed |
G1 |
S1 |
True |
On exposed slabs and fractured limestone rock on steep, mostly south-facing slopes in pine-oak-juniper woodlands at (1370-) 1825-2650 m ([4500-] 6000-8700 ft) in the Guadalupe Mountains; flowering April-May; fruiting October-November |
Hester's cory cactus |
Escobaria hesteri |
Plants |
Not Listed |
Not Listed |
G2 |
S2 |
True |
Grasslands on novaculite hills or limestone hills and alluvial fans, also in pine-oak-juniper woodlands on igneous substrates; flowering April-early June (-November), also during growing season possibly in response to significant rainfall; fruiting June-August (-January) |
Nellie's cory cactus |
Escobaria minima |
Plants |
LE |
E |
G1 |
S1 |
True |
Novaculite outcrops in full sun among Chihuahuan Desert scrub, usually in cracks or chips of novaculite or in mats of Selaginella; flowering March-June, probably most consistently from mid April - mid May; fruiting within one month or less of flowering |
Sneed's pincushion cactus |
Escobaria sneedii var. sneedii |
Plants |
LE |
E |
G2G3QT2Q |
S2 |
False |
Xeric limestone outcrops on rocky, usually steep slopes in desert mountains, in the Chihuahuan Desert succulent shrublands or grasslands; flowering April-September (peak usually in April, sometimes opportunistically after summer rains; fruiting August - November |
alkali spurge |
Euphorbia astyla |
Plants |
Not Listed |
Not Listed |
G2 |
S1 |
False |
In Pecos County, locally frequent in nearly bare areas within alkali sacaton (Sporobolus airoides) grasslands on alkaline and/or saline silt loam on alluvial flats along a spring-fed desert stream; in Mexico, on windblown gypsum deposits and gypsum flats, Coahuila locally abundant; flowering and fruiting at least March-June and August-September, probably throughout the growing season depending on rainfall |
three-tongue spurge |
Euphorbia chaetocalyx var. triligulata |
Plants |
Not Listed |
Not Listed |
G5T1 |
S1 |
False |
In Texas, in crevices in steep limestone cliffs and on scree and colluvium below; In Coahuila, on basalt and tuff cliffs; flowering/fruiting July-October, perhaps earlier in growing season too. |
Wheeler's spurge |
Euphorbia geyeri var. wheeleriana |
Plants |
Not Listed |
Not Listed |
G5T2 |
S1 |
False |
Sparingly vegetated, loose eolian quartz sand on reddish sand dunes or coppice mounds; flowering and fruiting at least August-September, probably earlier and later, as well |
swallow spurge |
Euphorbia golondrina |
Plants |
Not Listed |
Not Listed |
G2 |
S2 |
False |
Alluvial or eolian sand along Rio Grande, occasionally on adjacent shale or limestone slopes; flowering June-November |
velvet spurge |
Euphorbia innocua |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
True |
Open or brushy areas on coastal sands and the South Texas Sand Sheet; Perennial; Flowering Sept-April; Fruiting Nov-July |
dwarf broomspurge |
Euphorbia jejuna |
Plants |
Not Listed |
Not Listed |
G2 |
S2 |
True |
According to specimen collections, found on grama-grass prairie on caliche uplands, also dry caliche slopes, and limestone hills; flowering late March through July |
low spurge |
Euphorbia peplidion |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
True |
Occurs in a variety of vernally-moist situations in a number of natural regions; Annual; Flowering Feb-April; Fruiting March-April |
perennial broomspurge |
Euphorbia perennans |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
False |
Occurring in sparsely vegetated low elevation sites on gypseous or calcareous substrates; Perennial; Flowering April-Oct; Fruiting Oct |
Big Bend spurge |
Euphorbia simulans |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
True |
Occurs in sparsely vegetated low elevation sites on gypseous or calcareous substrates (Carr 2015). |
tall plains spurge |
Euphorbia strictior |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
False |
Occurs in shortgrass grasslands on dry rocky or, more commonly, deep sandy sites; Perennial; Flowering/Fruiting June-Sept |
Hinckley's spreadwing |
Eurytaenia hinckleyi |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
True |
Loose sandy soils of the Monahans/Kermit Sandhills; Annual; Flowering/Fruiting May-July |
spiny kidney-wood |
Eysenhardtia spinosa |
Plants |
Not Listed |
Not Listed |
G2 |
S2 |
False |
Grasslands or sparse shrublands on igneous outcrops or limestone hills; in the Chinati Mountains on rocky hills and gravelly drainages of mixed igneous origin; flowering July - October |
stiff fendlerbush |
Fendlera linearis |
Plants |
Not Listed |
Not Listed |
G3 |
S1 |
False |
Locally common in several locations in the Chisos Mountains and the Solitario (Carr 2015). |
Guadalupe fescue |
Festuca ligulata |
Plants |
LE |
E |
G1 |
S1 |
False |
Pine-oak-juniper woodlands on mesic slopes and in creek bottoms above 1800 m (5900 ft); Chisos Mountains substrates are gravelly and sandy loams derived from igneous materials; Guadalupe Mountains substrates are unknown but presumed to be loamy soils over limestone; flowering August-September, occasionally in spring after sufficient rainfall |
Texas fescue |
Festuca versuta |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
False |
Occurs in mesic woodlands on limestone-derived soils on stream terraces and canyon slopes; Perennial; Flowering/Fruiting April-June |
Shinner's brickellbush |
Flyriella parryi |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
False |
Dry rocky limestone slopes; Perennial; Flowering/Fruiting April-June |
Johnston's frankenia |
Frankenia johnstonii |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
False |
Dwarf shrublands on strongly saline, highly alkaline, calcareous or gypseous, clayey to sandy soils of valley flats or rocky slopes; mapped soils at many sites are of the Catarina and/or Maverick Series, other mapped soils include Copita, Brennan, Zapata, and Montell series; most sites are underlain by Eocene sandstones and clays of the Jackson Group or the Yegua and Laredo formations; a few are underlain by El Pico clay or the Catahoula and Frio formations shrublands; flowering throughout the growing season depending upon rainfall |
Chihuahua ash |
Fraxinus papillosa |
Plants |
Not Listed |
Not Listed |
G2G3Q |
S1 |
False |
Occurs in the canyons of the Chinati Mountains (Carr 2015). |