Species of Greatest Conservation Need

427 species
Taxonomic Group
Federal Status
State Status
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Species of Greatest Conservation Need (Updated: 06/16/2025)
Scientifc Name Common Name Taxonomic Group SGCN Status Federal Status State Status Global Rank State Rank Endemic General Habitat Type(s)
Dalea austrotexana dune dalea Plants Yes Not Listed Not Listed G2 S2 Yes Restricted to deep loose sands of active and somewhat stabilized dunes in South Texas (Carr 2015).
Dalea bartonii Cox's dalea Plants Yes Not Listed Not Listed G1 S1 Yes Semi-desert shortgrass grasslands with scattered pinyon pine and juniper in gravelly soils on limestone hills; probably flowering in late spring, fruiting in late summer-early fall, may flower in response to rainfall
Dalea hallii Hall's prairie clover Plants Yes Not Listed Not Listed G2 S2 Yes In grasslands on eroded limestone or chalk and in oak scrub on rocky hillsides; Perennial; Flowering May-Sept; Fruiting June-Sept
Dalea reverchonii Comanche Peak prairie clover Plants Yes Not Listed Not Listed G2G3 S2S3 Yes Shallow, calcareous clay to sandy clay soils over limestone in grasslands or openings in post oak woodlands, often among sparse vegetation in barren, exposed sites, most known sites are underlain by Goodland Limestone, most known sites are on roadway right-of-ways; flowering April-June, one account for October
Dalea sabinalis Sabinal prairie clover Plants Yes Not Listed Not Listed GH SH Yes Information sketchy, but probably in rocky soils or on limestone outcrops in sparse grassland openings in juniper-oak woodlands; flowering April-May or May -June
Dermatophyllum guadalupense Guadalupe Mountains mescal bean Plants Yes Not Listed Not Listed G2 S1 No One-seeded juniper (Juniperus monosperma) shrublands on dry slopes above 1,500 m (4,900 ft) elevation in Guadalupe Mountains on slightly gypseous pink sandstone that occurs as lenses within the pervasive limestone of the region; flowering late March-late April or May
Desmanthus reticulatus net-leaf bundleflower Plants Yes Not Listed Not Listed G3 S3 Yes Mostly on clay prairies of the coastal plain of central and south Texas; Perennial; Flowering April-July; Fruiting April-Oct
Desmodium lindheimeri Lindheimer's tickseed Plants Yes Not Listed Not Listed G3G4 S1 No Known in Texas only from three locations; US habitat is uncertain; has been found along rocky bed of dry ravine and among brush on the banks, steep ravine banks, dry caliche flat roadsides, in shallow soil on outcrops; occurred in deep to partial shade and openings in live oak-juniper woodland associations on the Edwards Limestone; flowering August-October or November.
Donrichardsia macroneuron South Llano springs moss Plants Yes E
05/30/2023
Not Listed G1 S1 Yes Shaded limestone rocks partially submerged in rapidly flowing relatively thermally constant water at a spring complex in a short 10 m (30 ft) run between the spring source and the river.
Draba standleyi Standley's draba Plants Yes Not Listed Not Listed G2G3 S1 No Crevices in sparsely vegetated igneous boulders and rock outcrops at high elevations in pine-oak-juniper woodlands; flowering June-October
Echeandia chandleri lila de los Llanos Plants Yes Not Listed Not Listed G2G3 S2S3 No Most commonly encountered among shrubs or in grassy openings in subtropical thorn shrublands on somewhat saline clays of lomas along Gulf Coast near mouth of Rio Grande; also observed in a few upland coastal prairie remnants on clay soils over the Beaumont Formation at inland sites well to the north and along railroad right-of-ways and cemeteries; flowering (May-) September-December, fruiting October-December
Echeandia texensis Green Island echeandia Plants Yes Not Listed Not Listed G1 S1 Yes On somewhat saline clays of lomas along the Gulf Coast near the mouth of Rio Grande, a habitat shared with E. chandleri; both species grow in areas dominated by herbaceous species with scattered brush and stunted trees, or in grassy openings in subtropical thorn shrublands; flowers April, June, and November, and likely in other months, as well
Echinacea atrorubens Topeka purple-coneflower Plants Yes Not Listed Not Listed G3 S3 No Occurring mostly in tallgrass prairie of the southern Great Plains, in blackland prairies but also in a variety of other sites like limestone hillsides; Perennial; Flowering Apr-June
Echinocereus chisosensis Chisos Mountains hedgehog cactus Plants Yes T
09/30/1988
T
12/30/1988
G2T1 S1 Yes Degraded desert grasslands or open shrublands on unconsolidated gravelly fan and terrace deposits on desert flats and low hills at moderate elevations of about 600-800 m (1950-2600 ft) in the Chihuahuan Desert, almost always found under the shelter of a nursery plant; flowering March-April, perhaps July, fruit maturing May-June, perhaps as late as August
Echinocereus chloranthus var. neocapillus golden-spine hedgehog cactus Plants Yes Not Listed Not Listed G4T1 S1 Yes Sparsely vegetated desert grasslands over novaculite outcrops; flowering late March-early May
Echinocereus coccineus var. paucispinus Texas claret-cup cactus Plants Yes Not Listed Not Listed G5T3 S3 No Mountains, hills, and mesas, igneous and limestone, oak-juniper-pinyon woodland or juniper woodland on limestone mesas, mostly rocky habitats but also in alluvial basins, grasslands, or among mesquite or other shrubs. Flowering March - April (Powell and Weedin 2004).
Echinocereus davisii Davis' green pitaya Plants Yes E
11/07/1979
E
04/29/1983
G5T1 S1 Yes Novaculite outcrops in full sun among sparse Chihuahuan Desert scrub usually hidden in mats of Selaginella; flowering (February-) March-April
Echinocereus milleri Miller's hedgehog cactus Plants Yes Not Listed Not Listed G1 S1 Yes Occurs on sandy-loam soils on rocky hills.
Echinocereus papillosus yellow-flowered alicoche Plants Yes Not Listed Not Listed G3 S3 No Under shrubs or in open areas on various substrates; Perennial; Flowering Jan-April.
Echinocereus reichenbachii var. albertii black lace cactus Plants Yes E
10/26/1979
E
04/29/1983
G5T1Q S1 Yes 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
Echinocereus reichenbachii var. baileyi Bailey's hedgehog cactus Plants Yes Not Listed Not Listed G5T3 S1 No Granitic hills in Great Plains Grassland (Benson 1982).
Echinocereus reichenbachii var. fitchii Fitch's hedgehog cactus Plants Yes Not Listed Not Listed G5T3 S3 No 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
Echinocereus viridiflorus var. canus graybeard cactus Plants Yes Not Listed Not Listed G5T1 S1 Yes Steep rubble of black Maravillas chert, near top of ridge
Echinocereus viridiflorus var. correllii Correll's green pitaya Plants Yes Not Listed Not Listed G5T2 S2 Yes Among grasses on rock crevices on low hills in desert or semi-desert grassland on novaculite or limestone; flowering March-May
Eleocharis austrotexana South Texas spikesedge Plants Yes Not Listed Not Listed G3 S3 Yes Occurring in miscellaneous wetlands at scattered locations on the coastal plain; Perennial; Flowering/Fruiting Sept