Compilation
Hedysarum incanum

Spreading to ascending or erect perennial herb, or becoming a wiry or stout subshrub or shrub, 0.3–3 m. tall; stem striate to angular, reddish, uncinulate-puberulent to pubescent and somewhat pilose at least above. Leaves 3-foliolate; stipules partially connate abaxially, at least when young, obliquely ovate-acuminate, truncate at base, 3–11 mm. long, 1.5–3 mm. wide, soft puberulent on the outer surface, long-persistent; stipels subulate to linear-attenuate, 1–5.5 mm. long, ciliate and puberulent; petioles uncinulate-puberulent and long spreading pilose, 0.8–3.5 cm. long; leaf-rhachis similar, shorter, to 1.5 cm. long; petiolules rugose, rather densely stiff pilose, 1–3 mm. long; leaflets very variable, often nearly orbicular at base, becoming successively oval, oblong, and nearly lanceolate above, mostly ± elliptic, acute at apex, rounded at base, rather lustrous and dark above, or with a paler streak along midrib, pubescence not conspicuous, pale beneath and rather densely pilose; terminal leaflets 2–9 cm. long, 1.5–4.5 cm. wide, the lateral up to 6 cm. long and 3 cm. wide. Inflorescence of terminal and axillary racemes, the rhachis angular, ridged and grooved, densely uncinulate-puberulent; pedicels usually solitary but sometimes borne in fascicles of 3, the central flower not always developing to maturity, each pedicel (or fascicle) subtended by 1 primary bract and (if solitary) by 2 lateral secondary bracts, all of which are persistent; primary bracts lanceolate-acuminate, 2.2–4.5 mm. long, 0.5–0.8 mm. wide, puberulent on the outer surface; secondary bracts similar, 1–2 mm. long, to 0.5 mm. wide; pedicels densely uncinulate-puberulent and sometimes pilose, 4–10 mm. long. Calyx uncinulate-puberulent and abundantly pilose, the teeth of both lobes finely ciliate, 2–4 mm. long. Corolla blue or red to purple; standard obovate, retuse, 3–5.5 mm. long, 4–5 mm. wide; wings ± oblong, clawed for one-third their length, 3.5–6 mm. long, 1.5–2 mm. wide; keel-petals ± scythe-shaped, obtuse at apex, scarcely auricled, equalling the wings. Fruit stipitate, up to 8-articled; stipe 1.5–2.5 mm. long; articles essentially straight above, indented about two-thirds their width at the isthmi (below), uncinulate-pubescent throughout, 3.5–5 mm. long, 2–3.5 mm. wide. Seed obtusely oblong, 1 mm. long, 0.5 mm. wide.