马蹄黄耆 ma ti huang qi

Plants 35-45 cm tall; hairs somewhat rigid, white, in inflo­rescence also black, 0.5-1 mm. Stem erect, ca. 2 mm thick, sparsely to rather densely covered with spreading hairs. Leaves 10-13 cm, subsessile; stipules 6-7 mm, free, sparsely to loosely hairy on both surfaces; rachis slender, loosely spreading hairy; leaflets in 10-12 pairs, narrowly elliptic to elliptic, 8-10 × 4-5 mm, abaxially loosely and adaxially sparsely covered with subappressed to ascending hairs, apex retuse. Racemes ca. 5 cm, rather loosely up to 20-flowered; peduncle ca. 10 cm, with spreading, white hairs; bracts green, acuminately ovate, 2-4 mm, mostly white hairy. Calyx 4-5 mm, loosely to rather densely covered with subappressed to ascending white and somewhat shorter black hairs; teeth unequal, 1.5-2.5 mm. Pet­als yellow or bluish purple, drying to yellowish; standard ovate, 12-14 × ca. 7 mm, apex deeply emarginate; wings 9-12 mm; keel 11-13 mm. Ovary with a stipe ca. 3 mm, densely white hairy; style and stigma glabrous. Legumes unknown.

● About 2800 m. Sichuan.