舟曲黄耆 zhou qu huang qi

Plants perennial, caespitose. Stems several, prostrate to ascending, 10-18 cm, covered with short, spreading, white hairs. Leaves 1.5-3 cm, subsessile; stipules ca. 2 mm, free, white hairy; rachis covered with appressed white hairs; leaflets in 5-9 pairs, elliptic, 2-3 × 1.5-2.5 mm, abaxially somewhat densely hairy, adaxially sparsely hairy, apex rounded to slightly emarginate. Racemes subumbellate, 4-8-flowered; peduncle ca. 1.5 cm, sparsely appressed hairy, after anthesis elongating; bracts ca. 1 mm, hairy. Calyx ca. 3 mm, sparsely appressed white hairy; teeth ca. 1.2 mm. Petals purple; standard widely obovate, up to 7 × 5 mm, apex emarginate; wings ca. 6.5 mm; keel ca. 7 mm. Legumes with a stipe ca. 2 mm, 11-12 mm, ca. 2 mm high; valves covered with appressed white hairs.

● Gansu.