71. Astragalus yunnanensis Franchet, Pl. Delavay. 162. 1890.
云南黄耆 yun nan huang qi
Plants 15-25 cm tall, subacaulescent to shortly caulescent; hairs spreading, white, in inflorescence also blackish brown. Stems several, 1-10 cm, 1-3 mm thick, ascending to erect, glabrous or in upper part sparsely to loosely hairy, in basal parts furnished with vaginate-connate whitish bracts. Leaves 5-16 cm; stipules 4-14 mm, lower ones widely ovate to elliptic, upper ones narrowly triangular, free, sparsely to loosely hairy; petiole 2-4.5 cm, like rachis glabrous or sparsely to loosely hairy; leaflets in 5-15 pairs, ovate to elliptic, 3-15 × 2.5-10 mm, abaxially loosely to densely villous, sometimes only at midvein and margins, adaxially glabrous or sparsely to loosely, more rarely densely, villous, apex obtuse to acute, often with a distinct cusp 1-2 mm. Racemes 1-2.5 cm, rather densely 2-13-flowered, at fruiting time somewhat elongated up to 5 cm; peduncle 4-11 cm, mostly rather densely hairy; bracts 4-10 × 1-3 mm, mostly white hairy. Bracteoles sometimes present. Calyx 8-14.5 mm, densely hairy; teeth 4-7.5 mm. Petals pale yellow, sometimes slightly fading violet; standard widely elliptic to widely ovate, 14-21 × 7-13.5 mm, apex emarginate; wings 13-21 mm; keel 15-21 mm. Legumes with a stipe 3.5-8 mm, narrowly or widely ellipsoid, 12-23 mm, 6-8 mm high, keeled ventrally and dorsally, with a beak 2-3 mm; valves densely to rather densely covered with spreading white and black hairs.
Gansu, Henan, Qinghai, Shandong, Sichuan, Xizang, Yunnan [India, Nepal].
