Sensitive
Perennial herb 1-2 m tall; stems glabrous or puberulent, sometimes reddish at the base; leaves all on stem and withered from the basal 1/5 of the stem at the time of anthesis, petioles 7-13 cm long, blades 10-20 cm long and 7-12 cm wide, palmately di...
Evergreen shrub, about 1 m tall; leaves pinnately compound with 7-13 oval, leathery, satiny pubescent leaflets; flowers pea-like, purple (rarely white), about 25 mm long; pods 5-14 cm long, 10-14 mm wide, slightly constricted between the seeds; seeds...
Perennial; stems erect or ascending, clustered, 3-9 dm long, glabrate or strigose to inflorescence; petioles 1-3 cm long; leaves trifoliolate; leaflets oblong-lanceolate, the terminal longest, to 3-6 cm, generally about 1 cm wide, 4-5 times longer th...
Densely caespitose perennial; caudex few-branched, compact, with persistent, thickened leaves; basal leaves imbricate, undifferentiated into blade and petiole, linear-lanceolate, 5-8 mm long, 1-1.5 mm wide, surfaces glabrous or rarely pilose, margins...
Low spreading shrub 2-3(5) dm tall, intricately branched; leaves grayish-green, alternate, entire, linear, tomentulose, tips mucronate; inflorescence a paniculate cyme; heads discoid, 8-11 mm long, 1.8-2.1 mm wide, phyllaries 16-22, outer ones someti...
Densely tufted, sparsely hairy perennial herbs; stems from many crowded, short branches, 5-16 cm tall; basal leaves lance-shaped to elliptic, broader above the middle, to 7 cm long and 7 mm wide, usually smaller, blades about one-half the length of t...
Perennial herb arising from a thick taproot with numerous, short (1-3 cm), ascending-erect caudex branches, the upper portion of these with persistent old leaf bases; stems erect, 5-8 cm tall, unbranched, green, sparsely short-strigose with white, st...
Low perennial; stems 3-8 cm tall, nearly hairless; leaves to 6 cm long, sparsely hairy mostly along the margins; basal leaves broader above the middle; stem leaves smaller than the basal and often linear; flower heads solitary on each stem; involucra...
Stems solitary, growing in clumps, or commonly branched to form small dense clusters, the individual stems mostly 2-4 cm thick and to 15 cm long; tubercles on mature stems with upper surface bearing a groove; spines about 20-50 per areole, majority s...
Erect, herbaceous perennial, 40-100 cm tall, glandular and eglandular hairs throughout; basal leaves in a more or less persistent rosette, palmately 5-parted, blade 3.7-4.4 cm long, 4.8-5.6 cm wide; stem leaves opposite, stipulate, 3-5-parted, the se...