Stanfield's beebalm |
Monarda stanfieldii |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
True |
Largely confined to granite sands along the middle course of the Colorado River and its tributaries; Perennial |
Texas beebalm |
Monarda viridissima |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
True |
Endemic perennial herb of the Carrizo Sands; deep, well-drained sandy soils in openings of post oak woodlands; flowers white. |
villous muhly |
Muhlenbergia villiflora var. villosa |
Plants |
Not Listed |
Not Listed |
G5T3 |
S2 |
False |
Alkaline (gypsum soil) desert flats; Perennial |
Sayersville blue eyes |
Nemophila sayersensis |
Plants |
Not Listed |
Not Listed |
G2 |
S2 |
True |
Open fields and woodland margins on deep loose nutrient-poor sand (Simpson, Helfgott and Neff 2001). Mar-May. |
broadsepal nissolia |
Nissolia platycalyx |
Plants |
Not Listed |
Not Listed |
G3 |
S1 |
False |
Located in the Chisos Mountains on ingeous soil; Perennial; Flowering May |
sand sacahuiste |
Nolina arenicola |
Plants |
Not Listed |
Not Listed |
G2Q |
S2 |
True |
Mesquite-sand sage shrublands on windblown Quarternary reddish sand in dune areas; flowering time uncertain May-June, June-September |
heartleaf evening-primrose |
Oenothera cordata |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
True |
Occurs in post oak woodlands on sandy soils on the coastal plain (Carr 2015). |
Cory's evening-primrose |
Oenothera coryi |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
True |
Calcareous prairies in the Plains Country of north Texas and in the Panhandle; Perennial; Flowering April-May |
Grand Prairie evening primrose |
Oenothera pilosella ssp. sessilis |
Plants |
Not Listed |
Not Listed |
G5T2 |
SH |
False |
Known in Texas from a single historic collection from Galveston Island; elsewhere known from remnant moist to dry tallgrass prairies on sandy or silty Alfisols over claypan on ancient river terraces of the Mississippi Alluvial Plain, and fragipan flatwoods; flowering May-June |
Heller's marbleseed |
Onosmodium helleri |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
True |
Occurs in loamy calcareous soils in oak-juniper woodlands on rocky limestone slopes, often in more mesic portions of canyons; Perennial; Flowering March-May |
sand prickly-pear |
Opuntia arenaria |
Plants |
Not Listed |
Not Listed |
G2 |
S2 |
False |
Deep, loose or semi-stabilized sands in sparsely vegetated dune or sandhill areas, or sandy floodplains in arroyos; flowering May-June |
golden-spine prickly-pear |
Opuntia aureispina |
Plants |
Not Listed |
Not Listed |
G1 |
S1 |
False |
Desert flats and low hills on slabs of fractured Boquillas limestone, Chihuahuan Desert near Rio Grande, 480-850 m (1576-2800 ft) elevation; flowering March-May (-June) |
silver cholla |
Opuntia imbricata var. argentea |
Plants |
Not Listed |
Not Listed |
G5T1 |
S1 |
True |
Rocky limestone slopes, rarely in alluvial soils in mesquite thickets, flowering April-July; fruit ripening two-three months after flowering |
Livermore sweet-cicely |
Osmorhiza bipatriata |
Plants |
Not Listed |
T |
G5T1 |
S1 |
False |
Moist igneous-derived soils of shaded rocky slopes around springs in high mountain canyons; occurs in shade of a mesic canyon forest; flowering June-August |
Big Bend hop-hornbeam |
Ostrya chisosensis |
Plants |
Not Listed |
Not Listed |
G2 |
S1 |
False |
Mixed woodlands on mesic, rocky, igneous slopes at high elevations in the Chisos Mountains; flowering May-June |
Llano butterweed |
Packera texensis |
Plants |
Not Listed |
Not Listed |
G2 |
S2 |
True |
Endemic to Llano Uplift of Edwards Plateau; granite sands; arises quickly from evergreen winter rosettes during January rains; flowers Feb-Mar. |
bushy whitlow-wort |
Paronychia congesta |
Plants |
Not Listed |
Not Listed |
G1 |
S1 |
True |
Sparingly vegetated openings in thorn shrublands on extremely shallow, highly limey, soils over caliche or calcareous rock of the Goliad Formation, on moderate slopes along its contact with the Catahoula and Frio formations; flowering mostly April-June, but as late as August, probably sporadically after rains throughout the season |
Jones' nailwort |
Paronychia jonesii |
Plants |
Not Listed |
Not Listed |
G3G4 |
S3S4 |
True |
Occurs in early successional open areas on deep well-drained sand; Biennial Annual; Flowering March-Nov; Fruiting April-Nov |
McCart's whitlow-wort |
Paronychia maccartii |
Plants |
Not Listed |
Not Listed |
GH |
SH |
True |
Known only from the type specimen, habitat poorly understood; substrate for type location described as very hard-packed red sand, possibly the Cuevita-Randado Complex, probably occurring in thorn shrubland plant community; based on type specimens presence of flowers and collection date, flowers in March, possibly also in other months and in response to rainfall |
bristle nailwort |
Paronychia setacea |
Plants |
Not Listed |
Not Listed |
G3 |
S2 |
True |
Flowering vascular plant endemic to eastern southcentral Texas, occurring in sandy soils |
Wilkinson's whitlow-wort |
Paronychia wilkinsonii |
Plants |
Not Listed |
Not Listed |
G2G3 |
S2 |
False |
Shallow rocky soils in crevices on novaculite hills or outcrops at low to moderate elevations in the Chihuahuan Desert; flowering April-October |
turnip-root scurfpea |
Pediomelum cyphocalyx |
Plants |
Not Listed |
Not Listed |
G3G4 |
S2S3 |
True |
Grasslands and openings in juniper-oak woodlands on limestone substrates on the Edwards Plateau and in north-central Texas (Carr 2015). |
Rydberg's scurfpea |
Pediomelum humile |
Plants |
Not Listed |
Not Listed |
G1 |
S1 |
False |
Shortgrass grasslands or cenizo-guajillo shrublands on shallow, stony to gravelly clay soils on dry, open limestone or yellowish, eroding caliche hills; flowering March-May, however, plants often do not appear above the ground surface if there is not sufficient precipitation, flowering and fruit maturation are also dependent on rainfall |
Chihuahua scurfpea |
Pediomelum pentaphyllum |
Plants |
Not Listed |
Not Listed |
G1G2 |
SH |
False |
Texas habitat unknown; in Arizona, found in highly degraded desert grasslands or mixed desert scrub; soils are described as deep sandy loams, sometimes with sparse to moderate amounts of small-sized gravel (0.5-1 cm diameter), some soils display minor eolian coppicing; flowering April-May, again July-August depending on rainfall |
Reverchon's scurfpea |
Pediomelum reverchonii |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
False |
Mostly in prairies on shallow rocky calcareous substrates and limestone outcrops; Perennial; Flowering Jun-Sept; Fruiting June-July |