Species of Greatest Conservation Need

1279 species
Taxonomic Group
Federal Status
State Status
Endemic

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Species of Greatest Conservation Need (Updated: 01/31/2024)
Common Name Scientifc Name Taxonomic Group Federal Status State Status Global Rank State Rank Endemic General Habitat Type(s)
corkwood Leitneria pilosa ssp. pilosa Plants Not Listed Not Listed G2G3T2 S2 False Wet or saturated silty soils along brackish or freshwater swamps and ponds and other low, poorly drained sites; flowers in early spring, fruiting as early as May
Texas stonecrop Lenophyllum texanum Plants Not Listed Not Listed G3 S3 False Found in shrublands on clay dunes (lomas) at the mouth of the Rio Grande and on xeric calcareous rock outcrops at scattered inland sites; Perennial; Flowering/Fruiting Nov-Feb
gypsum scalebroom Lepidospartum burgessii Plants Not Listed T G2 S1 False Gypsum dune system in the salt basin west of the Guadalupe Mountains, east of Dell City; sparsely vegetated areas; some plants on and around shifting, unstabilized dunes; others in stabilized gypseous soils with a well-developed microbiotic crust; flowering late April- early October, peaking late July-early September
gypsum hotspring aster Leucosyris blepharophylla Plants Not Listed Not Listed G1 S1 False Located at perennial springs, seeps, and their drainages in sandstone, calcareous, or gypseous canyons; Perennial; Flowering summer and fall
Matt Turner's aster Leucosyris mattturneri Plants Not Listed Not Listed G1 S1 True In gypseous or sandy soils along shallow, perennial seeps and streams within canyons in the Chihuahuan Desert; Annual or short-lived perennial; Flowering April - September
coastal gay-feather Liatris bracteata Plants Not Listed Not Listed G2G3 S2S3 True Coastal prairie grasslands of various types, from salty prairie on low- lying somewhat saline clay loams to upland prairie on nonsaline clayey to sandy loams; flowering in fall
branched gay-feather Liatris cymosa Plants Not Listed Not Listed G2 S2 True Somewhat barren grassland openings in post oak woodlands on tight clayey, chalky, or gravelly soils, often over Catahoula Formation; flowering July-October
glandular gay-feather Liatris glandulosa Plants Not Listed Not Listed G3 S2 True Occurs in herbaceous vegetation on limestone outcrops (Carr 2015). Flowering: July-Oct.
slender gay-feather Liatris tenuis Plants Not Listed Not Listed G3 S3 False Sandy soils of fire-maintained upland longleaf pine savannas, mostly over the Catahoula Formation; flowering June-September
silvery wolfberry Lycium puberulum var. berberioides Plants Not Listed Not Listed G4T3 S3 True Occurs in Chihuahuan Desert grasslands and shrublands on gravel and clay hills and in creosote shrublands on gravel flats; Perennial; Flowering March-June; Fruiting April
Texas wolf-berry Lycium texanum Plants Not Listed Not Listed G2 S2 False Semi-desert grasslands and thorn shrublands on sandy, gravelly, and/or loamy soils, on very gently sloping terrain as well as in rocky areas of canyons, often over limestone at moderate elevations; flowering March-October
Plateau loosestrife Lythrum ovalifolium Plants Not Listed Not Listed G3G4 S3S4 False Banks and gravelly beds of perennial (or strong intermittent) streams on the Edwards Plateau, Llano Uplift and Lampasas Cutplain; Perennial; Flowering/Fruiting April-Nov
Stebbin's desert dandelion Malacothrix stebbinsii Plants Not Listed Not Listed G3? S1 False Shrubland among boulders of dark ingeous rock; sandy yucca, ephedra, grass flats; steep-walled metamorphic rock canyon (TEX-LL specimens Carr 19661, Worthington 24704 & 24701). April.
Wendt's malaxis Malaxis wendtii Plants Not Listed Not Listed G1G2 S1 False In Texas, oak-juniper-pinyon woodlands in moist canyons and on north-facing slopes in the Chisos Mountains; flowering July-September
Wright's fishhook cactus Mammillaria wrightii var. wrightii Plants Not Listed Not Listed G4T3 S1 False Franklin Mountains (Carr 2015)
St. Joseph's staff Manfreda longiflora Plants Not Listed Not Listed G2 S2 False Thorn shrublands on clays and loams with various concentrations of salt, caliche, sand, and gravel; rossettes are often obscured by low shrubs; flowering September-October
Siler's huaco Manfreda sileri Plants Not Listed Not Listed G3 S3 False Rare in a variety of grasslands and shrublands on dry sites; Perennial; Flowering April-July; Fruiting June-July
Walker's manioc Manihot walkerae Plants LE E G2 S1 False Periphery of native brush in sandy loam; also on caliche cuestas?; flowering April-September (following rains?)
black corona milkvine Matelea atrostellata Plants Not Listed Not Listed G1? S1 True Occurs on rocky soils in mountain canyons in oak-junper-pinyon woodlands.
shortcrown milkvine Matelea brevicoronata Plants Not Listed Not Listed G3 S3 True Primarily in grasslands on tight sandy or silty substrates; Perennial; Flowering March-Sept; Fruiting May-Sept
plateau milkvine Matelea edwardsensis Plants Not Listed Not Listed G3 S3 True Occurs in various types of juniper-oak and oak-juniper woodlands; Perennial; Flowering March-Oct; Fruiting May-June
Falfurrias milkvine Matelea radiata Plants Not Listed Not Listed G1 S1 True Uncertain, only two known specimens; one from clay soil on dry gravel hills at altitude of approximately 45 m (150 ft); other from Falfurrias, no habitat description; probably flowering May-June
arrowleaf milkvine Matelea sagittifolia Plants Not Listed Not Listed G3 S3 False Most consistently encountered in thornscrub in South Texas; Perennial; Flowering March-July; Fruiting April-July and Dec?
Texas milkvine Matelea texensis Plants Not Listed Not Listed G1 S1 True Desert grasslands or woodlands over igneous substrate, at elevations between 1200-1500 m (3900-5000 ft); flowering/fruiting May-October
seaside beebalm Monarda maritima Plants Not Listed Not Listed G2Q S2 True Occurs in grasslands and pastures on sandy soil near the coast (Carr 2015).