S3
Vulnerable
Lupinus sierrae-blancae (Sierra Blanca Lupine)
Perennial herb to 1.5 m tall, finely and inconspicuously pubescent; leaves palmately compound, with long petioles, leaflets 7-9, 3-7 cm long, oblong-oblanceolate, finely strigose below, glabrate above; racemes 10-30 cm long, flowers irregularly whorl...
Machaeranthera blephariphylla (Texas Tansy-Aster)
Perennial; stems erect to about 30 cm tall, leafy to apex. Herbage scabrous-puberulous nearly glabrous, not glandular. Leaves oblong spatulate to lanceolate, bristle-toothed. Heads on naked peduncles. Rays white, occasionally bluish on the underside....
Mentzelia sivinskii (Sivinski's Blazingstar)
Biennial taprooted herbs; stems solitary, erect, straight; branches distal or along entire stem (candelabra-form); leaf blades 32.8-112.2 x 2.9-11.4 mm, intersinus distance at widest point 1-2.9 mm; proximal oblanceolate to elliptic, margins pinnate,...
Mentzelia springeri (Springer's Blazing Star)
Perennial herb; stems several with numerous branches (bushy appearance), slender, 3-5 dm tall, white, glabrous to above the middle, puberulent near the top; basal leaves absent; lower stem leaves narrowly lanceolate to linear, up to 4 cm long, entir...
Mentzelia todiltoensis (Todilto Stickleaf)
Perennial herb; stems several from the base, white, stout, leafy, 2.2-8 dm tall, sparsely covered with minute, reflexed or spreading barbed hairs; basal leaves not persistent; stem leaves entire or with a few short laciniate lobes, linear to narrowly...
Muhlenbergia arsenei (Navajo Muhly)
Loosely tufted perennial, the spreading base sometimes appearing rhizomatous; stems wiry, 1.0-4.5 dm tall, decumbent at base; leaf blade 1-5 cm long, less than 2 cm wide, inrolled; ligule 1-2 mm long; inflorescence 4-12 cm long, less than 3 cm wide, ...