Davis' green pitaya |
Echinocereus davisii |
Plants |
LE |
E |
G5T1 |
S1 |
True |
Novaculite outcrops in full sun among sparse Chihuahuan Desert scrub usually hidden in mats of Selaginella; flowering (February-) March-April |
Miller's hedgehog cactus |
Echinocereus milleri |
Plants |
Not Listed |
Not Listed |
G1 |
S1 |
True |
Occurs on sandy-loam soils on rocky hills. |
yellow-flowered alicoche |
Echinocereus papillosus |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
False |
Under shrubs or in open areas on various substrates; Perennial; Flowering Jan-April. |
black lace cactus |
Echinocereus reichenbachii var. albertii |
Plants |
LE |
E |
G5T1Q |
S1 |
True |
Grasslands, thorn shrublands, mesquite woodlands on sandy, somewhat saline soils on coastal prairie, most frequently in naturally open areas sparsely covered with brush of a low stature not resulting from disturbance or along creeks in ecotonal areas between this upland type and lower areas dominated by halophytic grasses and forbs; flowering April-June |
Bailey's hedgehog cactus |
Echinocereus reichenbachii var. baileyi |
Plants |
Not Listed |
Not Listed |
G5T3 |
S1 |
False |
Granitic hills in Great Plains Grassland (Benson 1982). |
Fitch's hedgehog cactus |
Echinocereus reichenbachii var. fitchii |
Plants |
Not Listed |
Not Listed |
G5T3 |
S3 |
False |
Grasslands, thorn shrublands, and mesquite-acacia woodlands on sandy, possibly somewhat saline, soils on the coastal prairie. Within these communities, the plants may be most frequently found in open areas that are somewhat sparsely covered with brush of a low stature. Frequently grows at the ecotone where these upland areas meet lower areas dominated by halophytic grasses and forbs; Perennial |
graybeard cactus |
Echinocereus viridiflorus var. canus |
Plants |
Not Listed |
Not Listed |
G5T1 |
S1 |
True |
Steep rubble of black Maravillas chert, near top of ridge |
Correll's green pitaya |
Echinocereus viridiflorus var. correllii |
Plants |
Not Listed |
Not Listed |
G5T2 |
S2 |
True |
Among grasses on rock crevices on low hills in desert or semi-desert grassland on novaculite or limestone; flowering March-May |
South Texas spikesedge |
Eleocharis austrotexana |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
True |
Occurring in miscellaneous wetlands at scattered locations on the coastal plain; Perennial; Flowering/Fruiting Sept |
short-fruited spikesedge |
Eleocharis brachycarpa |
Plants |
Not Listed |
Not Listed |
GH |
SH |
False |
In Tamaulipas, at the edges of resacas; in Texas, single specimen collected between Matamoros and Nueces presumably in similar habitat; fruiting winter-spring |
Emory-bush |
Emorya suaveolens |
Plants |
Not Listed |
Not Listed |
G3 |
S1 |
False |
Known from several collections from limestone cliffs in Maravillas Canyon, Brewster County; Perennial; Flowering March-Nov |
one-head encelia |
Encelia scaposa |
Plants |
Not Listed |
Not Listed |
G3 |
S2 |
False |
Occurs on open gravelly clay flats; Perennial; Flowering/Fruiting March-Nov |
Cory's ephedra |
Ephedra coryi |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
False |
Dune areas and dry grasslands in the southern Plains Country; Perennial; Flowering April-Sept; Fruiting May-Sept |
Powells' joint-fir |
Ephedra torreyana var. powelliorum |
Plants |
Not Listed |
Not Listed |
G5?T2 |
S1 |
False |
Desert scrub on gravelly to fine grained gypseous soils; 850-1100 m (2789-3609 ft) |
Boke's button cactus |
Epithelantha bokei |
Plants |
Not Listed |
Not Listed |
G4T3 |
S3 |
False |
Chihuahuan Desert on rocky, barren hills of sedimentary substrates; 700 (-1400) m elevation; Perennial; Flowering spring-early summer (May-Jun); Fruiting summer-fall |
Guadalupe Mountains rabbitbrush |
Ericameria nauseosa var. texensis |
Plants |
Not Listed |
Not Listed |
G5T2T3 |
S1 |
False |
Crevices and solution pits in limestone ledges and boulders, less often in open gravel alluvium of streambeds at elevations between 1490 and 2150 m (4900 and 7050 ft); flowering September-November |
small-headed pipewort |
Eriocaulon koernickianum |
Plants |
Not Listed |
T |
G2 |
S1S2 |
False |
In East Texas, post-oak woodlands and xeric sandhill openings on permanently wet acid sands of upland seeps and hillside seepage bogs, usually in patches of bare sand rather than among dense vegetation or on muck; in Gillespie County, on permanently wet or moist hillside seep on decomposing granite gravel and sand among granite outcrops; flowering/fruiting late May-late June |
Correll's wild-buckwheat |
Eriogonum correllii |
Plants |
Not Listed |
Not Listed |
G2G3 |
S2S3 |
True |
Occurs on clay mounds, caprock and rocky ledges on calcihe substrates. |
Gregg's wild-buckwheat |
Eriogonum greggii |
Plants |
Not Listed |
Not Listed |
G2 |
S1 |
False |
Sparingly vegetated openings in thorn shrublands in shallow soils on xeric ridges along the Rio Grande; also on excessively drained, sandy soil over caliche and calcareous sandstone of the Goliad Formation and over sandstone or fossiliferous layers of the Jackson Group; flowering February-July, probably opportunistically during the growing season |
Chisos Mountains wild-buckwheat |
Eriogonum hemipterum var. hemipterum |
Plants |
Not Listed |
Not Listed |
G3T2 |
S2 |
True |
Wooded slopes and canyons (Powell and Worthington 2018). July - September. |
Irion County wild-buckwheat |
Eriogonum nealleyi |
Plants |
Not Listed |
Not Listed |
G2 |
S2 |
True |
Grasslands and shallow stony soils over limestone and indurated caliche, often collected from ungrazed but sparsely vegetated roadsides, particularly where limestone or caliche is exposed on hilltops; flowering June-September |
bushy wild-buckwheat |
Eriogonum suffruticosum |
Plants |
Not Listed |
Not Listed |
G2 |
S2 |
True |
Sparsely vegetated rocky limestone slopes, low hills, and clay flats; also on gypseous soils; flowering March-April, in full fruit by May |
basin wild-buckwheat |
Eriogonum tenellum var. ramosissimum |
Plants |
Not Listed |
Not Listed |
G5T3 |
S3 |
True |
Usually rooted in crevices of sparsely vegetated, unshaded granite and gneiss outcrops or associated deposits of dry sand and gravel; Perennial; Flowering Apr-Dec |
fringed monkeyflower |
Erythranthe chinatiensis |
Plants |
Not Listed |
Not Listed |
G1 |
S1 |
False |
Freshwater Wetland (Seep, springs); Riverine (very shallow streams) |
white column cactus |
Escobaria albicolumnaria |
Plants |
Not Listed |
Not Listed |
G2G3 |
S2S3 |
False |
Creosote bush or lechuguilla canyon shrublands primarily on nearly level terrain to rolling hills on thin, gravelly soils or limestone bedrock of the Santa Elena, Glen Rose, Boquillas, and Telephone Canyon formations; at lower elevations 550-1370 m (1800-5000 ft) in the Chihuahuan Desert; flowering early March-May |