S3
Vulnerable
Astragalus accumbens (Zuni Milkvetch)
Perennial; plants low, tufted, stemless or with short stem (0-4(6) cm long), stems prostrate; herbage usually silvery; foliage densely strigose with rather coarse straight and parallel, appressed, dolabriform hairs; stipules not connate; leaves 2-6.5...
Astragalus castetteri (Castetter Milkvetch)
Rhizomatous perennial; foliage strigose; stems 2-4 dm, clustered, ascending or decumbent; leaves 4-10 cm; leaflets 13-25, obovate to narrowly oblong, 5-15 mm long, 2-6 times longer than wide, flat or folded, often glabrate above; lower stipules conna...
Astragalus chuskanus (Chuska Mt Milkvetch)
Matted perennial herb; stems spreading on ground (humistrate), freely branching, densely leafy, to 4 dm long; herbage densely hairy with soft, fine, basifixed hairs; stipules connate; leaves silvery-gray, 1.5-4 cm long; leaflets 9-15, obovate or oblo...
Astragalus micromerius (Chaco Milkvetch)
Perennial herb; stems 5-30 cm long, prostrate, silvery-hairy, bearing densely crowded small leaves; leaves 4-20 mm long, pinnately compound with 3-9 leaflets; flowers usually solitary or in pairs, pea-like, about 6 mm long, petals greenish-white with...
Astragalus monumentalis var. cottamii (Cottam's milkvetch)
Perennial, slightly tufted herb; stems 1.5-4.0 cm long, branching beneath the ground; leaves 1-4 cm long; leaflets 9-19, elliptic to oblanceolate, acute to obtuse, strigose on both surfaces with basifixed hairs or nearly glabrous above, 2-9 mm long 1...