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) |
|---|---|---|---|---|---|---|---|---|---|
| Agalinis auriculata | earleaf false foxglove | Plants | Yes | Not Listed | Not Listed | G3 | SH | No | Known in Texas from one late nineteenth century specimen record labeled -Benbrook-; in Oklahoma, degraded prairies, floodplains, fallow fields, and borders of upland sterile woods; in Arkansas, blackland prairie; Annual; Flowering August - October |
| Agalinis calycina | Leoncita false-foxglove | Plants | Yes | Not Listed | T 03/30/2020 |
G1 | S1 | No | Grasslands on perennially moist, heavy, alkaline/saline, calcareous silty clays and loams in and around cienegas (desert springs) and seeps; Annual; Flowering September-October |
| Agalinis densiflora | Osage Plains false foxglove | Plants | Yes | Not Listed | Not Listed | G3 | S2 | No | Most records are from grasslands on shallow, gravelly, well drained, calcareous soils; Prairies, dry limestone soils; Annual; Flowering Aug-Oct |
| Agalinis navasotensis | Navasota false foxglove | Plants | Yes | Not Listed | Not Listed | G1 | S1 | Yes | Relatively sparsely vegetated, shallow, sandy soils on calcareous sandstone outcrops of the Oakville Formation, with associated surrounding species more typical of Edwards Plateau, than Post Oak Savanna or Blackland Prairie; also, Catahoula Formation barrens in pine savanna; Annual; Flowering September-October |
| Agrimonia incisa | incised groovebur | Plants | Yes | Not Listed | Not Listed | G3G4 | S3 | No | Sandy soils in dry to mesic pine or mixed pine-oak forests and forest borders; usually in fire-maintained longleaf pine savannas but also in more mesic habitats; Perennial; Flowering July-September |
| Allium canadense var. ecristatum | crestless onion | Plants | Yes | Not Listed | Not Listed | G5T3 | S3 | Yes | Occurs on poorly drained sites on sandy substrates within coastal prairies of the Coastal Bend area (Carr 2015). |
| Allium elmendorfii | Elmendorf's onion | Plants | Yes | Not Listed | Not Listed | G2 | S2 | Yes | Grassland openings in oak woodlands on deep, loose, well-drained sands; in Coastal Bend, on Pleistocene barrier island ridges and Holocene Sand Sheet that support live oak woodlands; to the north it occurs in post oak-black hickory-live oak woodlands over Queen City and similar Eocene formations; one anomalous specimen found on Llano Uplift in wet pockets of granitic loam; Perennial; Flowering March-April, May |
| Allolepis texana | Texas false saltgrass | Plants | Yes | Not Listed | Not Listed | G2 | S1 | No | Sandy to silty soils of valley bottoms and river floodplains, not generally on alkaline or saline sites; Perennial; Flowering (May-) July-October depending on rainfall |
| Ambrosia cheiranthifolia | South Texas ambrosia | Plants | Yes | E 08/24/1994 |
E 01/30/1997 |
G1 | S1 | No | Grasslands and mesquite-dominated shrublands on various soils ranging from heavy clays to lighter textured sandy loams, mostly over the Beaumont Formation on the Coastal Plain; in modified unplowed sites such as railroad and highyway right-of-ways, cemeteries, mowed fields, erosional areas along small creeks; Perennial; Flowering July-November |
| Ammannia grayi | longstalk heimia | Plants | Yes | Not Listed | Not Listed | G2G3 | S2 | No | Moist or subirrigated alkaline or gypsiferous clayey soils along unshaded margins of cienegas and other wetlands; occurs sparingly on an alkaline, somewhat saline silt loam on terraces of spring-fed streams in grassland; also occurs common in moderately alkaline clay along perennial stream and in subirrigated wetlands atop poorly-defined spring system; also occurs in low, wetland area along highway right-of-way; flowering May-September |
| Amorpha laevigata | smooth indigobush | Plants | Yes | Not Listed | Not Listed | G3? | S1 | No | Prairies, open woods and creek banks; Perennial; Flowering May-July |
| Amorpha paniculata | panicled indigobush | Plants | Yes | Not Listed | Not Listed | G3 | S3 | No | A stout shrub, 3 m (9 ft) tall that grows in acid seep forests, peat bogs, wet floodplain forests, and seasonal wetlands on the edge of Saline Prairies in East Texas. It is distinguished from other Amorpha species by its fuzzy leaflets with prominent raised veins underneath, and the flower panicles, which are 8 to 16 inches long and slender, held above the foliage. Perennial; Flowering May-August. |
| Amorpha roemeriana | Texas amorpha | Plants | Yes | Not Listed | Not Listed | G3 | S3 | No | Juniper-oak woodlands or shrublands on rocky limestone slopes, sometimes on dry shelves above creeks; Perennial; Flowering May-June; Fruiting June-Oct |
| Amsonia tharpii | Tharp's blue-star | Plants | Yes | Not Listed | Not Listed | G1 | S1 | No | Open areas in midgrass grasslands or shrublands in shallow clay soils over limestone; Bedrock at Pecos County site is mapped as Cretaeous limestone and marl of Washita Group; soils very shallow, well-drained calcareous moderately alkaline, light brownish-gray stony loam of Lozier-Rock outcrop, developed over fractured caliche-coated limestone; New Mexico site differs; Perennial; Flowering April-early May |
| Anulocaulis leiosolenus var. lasianthus | Chihuahuan ringstem | Plants | Yes | Not Listed | Not Listed | G4T2 | S2 | No | Xeric gypseous clay or limestone outcrops and flats; Perennial; Flowering/Fruiting Sept |
| Anulocaulis reflexus | Ojinaga ringstem | Plants | Yes | Not Listed | Not Listed | G2 | S1 | No | Primarily located on shaley gypseous clays at 800 - 1200 m (2600-4000 ft); Perennial; Flowering mid-May - mid-October |
| Aquilegia chaplinei | Guadalupe Mountains columbine | Plants | Yes | Not Listed | Not Listed | G2 | S2 | No | Perennially moist to wet limestone canyon walls; moist leaf litter and humus among boulders in wooded mesic canyons; Perennial; Flowering April-November (most reliably June-July) |
| Aquilegia hinckleyana | Hinckley's columbine | Plants | Yes | Not Listed | Not Listed | GH | SH | Yes | Wet areas near waterfalls, perennial seeps, springs, etc., in canyons of desert mountains; also widely-planted in residential settings, cultivars likely modified from original population from 30 years cultivation in horticultural trade; Perennial; Flowering March-November, heavily during March-April with trace flowering September-November |
| Aquilegia longissima | long-spurred columbine | Plants | Yes | Not Listed | Not Listed | G3 | S2 | No | Cooler, wetter areas near perennial seeps and springs in mesic mountain canyons; Perennial; Flowering/Fruiting June-Nov |
| Arenaria livermorensis | Livermore sandwort | Plants | Yes | Not Listed | Not Listed | G1 | S1 | Yes | Sparsely vegetated igneous rock outcrops at higher elevations, 2300-2500 m (7600-8200 ft) in the Davis Mountains; Perennial; Flowering August-October |
| Argythamnia aphoroides | Hill Country wild-mercury | Plants | Yes | Not Listed | Not Listed | G3 | S3 | Yes | Mostly in bluestem-grama grasslands associated with plateau live oak woodlands on shallow to moderately deep clays and clay loams over limestone on rolling uplands, also in partial shade of oak-juniper woodlands in gravelly soils on rocky limestone slopes; Perennial; Flowering April-May with fruit persisting until midsummer |
| Argythamnia argyraea | silvery wild-mercury | Plants | Yes | Not Listed | Not Listed | G2 | S2 | Yes | Among shortgrasses in grasslands or open shrublands on which whitish clay soils, particularly those derived from the Yegua Formation; Perennial; Flowering April-June; fruit may persist until fall |
| Asclepias prostrata | prostrate milkweed | Plants | Yes | E 03/30/2023 |
Not Listed | G1G2 | S1 | No | Grasslands or openings in shrublands on loamy fine sands and fine sandy loams of the Copita, Hebbronville, and possibly other soil series occurring over the Laredo, Yegua, and other Eocene formations; also in Loreto caliche sand plain in Tamaulipas; flowering April-October, but may be sporadic and dependent on rainfall |
| Astragalus gypsodes | gyp locoweed | Plants | Yes | Not Listed | Not Listed | G3 | S2 | No | Gypsum or stiff gypseous clay soils on low rolling hills, mostly low elevations in the middle Pecos River valley; many of the known locations are on the Castile Formation (Permian); flowering March-June |
| Astragalus mollissimus var. coryi | Cory's woolly locoweed | Plants | Yes | Not Listed | Not Listed | G5T3 | S3 | Yes | Grasslands over limestone on the western Edwards Plateau; Perennial; Flowering March-May |