Species of Greatest Conservation Need
1124 species
| Scientifc Name | Common Name | Taxonomic Group | SGCN Status | Federal Status | State Status | Global Rank | State Rank | Endemic | General Habitat Type(s) |
|---|---|---|---|---|---|---|---|---|---|
| Paronychia maccartii | McCart's whitlow-wort | Plants | Yes | Not Listed | Not Listed | GH | SH | Yes | 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 |
| Paronychia setacea | bristle nailwort | Plants | Yes | Not Listed | Not Listed | G3 | S2 | Yes | Flowering vascular plant endemic to eastern southcentral Texas, occurring in sandy soils |
| Paronychia wilkinsonii | Wilkinson's whitlow-wort | Plants | Yes | Not Listed | Not Listed | G2G3 | S2 | No | Shallow rocky soils in crevices on novaculite hills or outcrops at low to moderate elevations in the Chihuahuan Desert; flowering April-October |
| Pediomelum cyphocalyx | turnip-root scurfpea | Plants | Yes | Not Listed | Not Listed | G2G3 | S2S3 | Yes | Grasslands and openings in juniper-oak woodlands on limestone substrates on the Edwards Plateau and in north-central Texas (Carr 2015). |
| Pediomelum humile | Rydberg's scurfpea | Plants | Yes | Not Listed | Not Listed | G1 | S1 | No | 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 |
| Pediomelum pentaphyllum | Chihuahua scurfpea | Plants | Yes | Not Listed | Not Listed | G1G2 | SH | No | 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 |
| Pediomelum reverchonii | Reverchon's scurfpea | Plants | Yes | Not Listed | Not Listed | G3 | S3 | No | Mostly in prairies on shallow rocky calcareous substrates and limestone outcrops; Perennial; Flowering Jun-Sept; Fruiting June-July |
| Peniocereus greggii var. greggii | desert night-blooming cereus | Plants | Yes | Not Listed | Not Listed | G3G4T3 | S2 | No | Chihuahuan Desert shrublands or shrub invaded grasslands in alluvial or gravelly soils at lower elevations, 1200-1500 m (3900-4900 ft), on slopes, benches, arroyos, flats, and washes; flowering synchronized over a few nights in early May to late June when almost all mature plants bloom, flowers last only one day and open just after dark, may flower as early as April |
| Penstemon alamosensis | Alamo beardtongue | Plants | Yes | Not Listed | Not Listed | G3 | S1 | No | Rocky soils derived from limestone (in Texas), usually in sheltered sites, often on north facing slopes and in mesic canyon bottoms, occasionally in rock crevices or among unbrowsed shrubs; flowering late April-June |
| Penstemon cardinalis var. regalis | royal red penstemon | Plants | Yes | Not Listed | Not Listed | G3T3 | S2 | No | Pine-oak woodlands in canyons at higher elevations in the Davis and Guadalupe mountains; flowering May-June (-August) |
| Penstemon guadalupensis | Guadalupe beardtongue | Plants | Yes | Not Listed | Not Listed | G3 | S3 | Yes | Scattered in calcareous prairies on the Lampasas Cutplain and Edwards Plateau; Perennial; Flowering/Fruiting March-July |
| Penstemon triflorus var. integrifolius | Heller's beardtongue | Plants | Yes | Not Listed | Not Listed | G3T2 | S2 | Yes | Occurs sparingly on rock outcrops and in grasslands associated with juniper-oak woodlands (Carr 2015). |
| Penstemon triflorus var. triflorus | threeflower penstemon | Plants | Yes | Not Listed | Not Listed | G3T3 | S3 | Yes | Occurs sparingly on rock outcrops and in grasslands associated with juniper-oak woodlands (Carr 2015). |
| Penstemon wrightii | Wright's beardtongue | Plants | Yes | Not Listed | Not Listed | G3G4 | S3 | No | Occurs mostly in montane grasslands and woodlands; Perennial; Flowering April-Aug; Fruiting May-Aug |
| Peritoma multicaulis | manystem spiderflower | Plants | Yes | Not Listed | Not Listed | G3 | S1 | No | Wet, saline or alkaline sandy soils around alkali sinks or flats, saline playas, springs, or meadows; in Texas, known from a wet, grassy seep along sandstone cliffs and historically from a Big sacaton (Sporobulus wrightii) flat at the edge of a cienega (desert spring) in soil developed over volcanic ash; flowering/fruiting June-September |
| Perityle aglossa | limestone rock-daisy | Plants | Yes | Not Listed | Not Listed | G3G4 | S3 | No | Crevices in limestone outcrops along the Rio Grande in Brewster and Terrell counties; Perennial; Flowering July-Dec; Fruiting Oct-Nov |
| Perityle angustifolia | rayless rock-daisy | Plants | Yes | Not Listed | Not Listed | G3G4 | S3S4 | Yes | Crevices of limestone bluffs and cliff-faces; Perennial; Flowering April-Oct; Fruiting April-Sept |
| Perityle bisetosa var. appressa | apressed two-bristle rock-daisy | Plants | Yes | Not Listed | Not Listed | G2T2 | S2 | No | Crevices in limestone exposures on bluffs and other rock outcrops; flowering May-September |
| Perityle bisetosa var. bisetosa | two-bristle rock-daisy | Plants | Yes | Not Listed | Not Listed | G2T2 | S2 | No | Crevices in limestone exposures on bluffs and other rock outcrops; flowering late summer-fall |
| Perityle bisetosa var. scalaris | stairstep two-bristle rock-daisy | Plants | Yes | Not Listed | Not Listed | G2T1 | S1 | Yes | Crevices in limestone exposures on bluffs and other rock outcrops; flowering May-October |
| Perityle cinerea | grayleaf rock-daisy | Plants | Yes | Not Listed | Not Listed | G2 | S2 | Yes | Crevices in dry limestone caprock of mesas; flowering spring-fall |
| Perityle dissecta | slimlobe rock-daisy | Plants | Yes | Not Listed | Not Listed | G2 | S2 | No | Limestone cliff faces in desert canyons; flowering/fruiting spring-fall |
| Perityle fosteri | Foster's rock-daisy | Plants | Yes | Not Listed | Not Listed | G1 | S1 | Yes | Known only from rock faces on limestone boulders and bluffs in a deep, protected canyon; flowering/fruiting July, other months not yet known |
| Perityle huecoensis | Hueco rock-daisy | Plants | Yes | Not Listed | Not Listed | G1 | S1 | No | North-facing or otherwise mostly shaded limestone cliff faces within relatively mesic canyon system; flowering spring-fall |
| Perityle lindheimeri var. halimifolia | Devils River rock-daisy | Plants | Yes | Not Listed | Not Listed | G4T3 | S3 | Yes | Limestone cliff-faces in Val Verde County eastward to central Texas; Perennial; Flowering April-Sept; Fruiting June-Aug |