Imperiled
Biennial or short-lived perennial, usually densely pubescent, the hairs sessile or short-stipitate, simple or forked, 5- to 9-rayed, smooth or finely granular; stems several, erect or the outer ones decumbent or procumbent, simple or sometimes much b...
Perennial herb to 8 cm tall; stems and rootstocks numerous, short, and almost matted, appearing caespitose; leaves digitately 5-foliate; leaflets divided terminally into three lobes; leaflet bases narrowly cuneate; midvein of leaflets raised on lower...
Perennial herb; stems striate, 3-9 dm tall; leaves 3-times pinnately divided (fern-like), 5-20 cm long and 4-15 cm wide, leaflets pinnately lobed or parted into linear-oblong to ovate divisions; inflorescence a compound umbel terminating each stem, p...
Mat-forming perennial herb from a woody base; stems numerous, glabrous, slender, mostly prostrate, branching, 1-5 cm long, green; leaves ovate-elliptic, 1.5-4 mm long, slightly fleshy; flowers 1 or 2, at the ends of branches, rose-purple and white; p...
Succulent perennial from a thick, fleshy rootstock; stems one to several, 2-23 cm tall; leaves sessile, alternate, coriaceous, glabrous and glaucous, obovate to oblanceolate, margins entire to sparsely dentate, 1.5-3 cm long and 4-7 mm wide; inflores...
Stems usually solitary, depressed-globose to ovoid, 3.2-11.0 cm long, 3.8-8.0 cm in diameter; ribs 13-17; tubercles inconspicuous; areoles woolly; central spines absent or rarely 1, radial spines 7-13, straw-colored, spreading, 6-13 mm long; flowers ...
Herbaceous perennial; stems mostly single and unbranched, glabrous, slender, 4-10(12) dm tall; leaves opposite, lanceolate to ovate, acute, obtuse to cordate at base, coarsely and unevenly laciniate-serrate, thin, glabrous except sparsely glandular p...