哈密黄耆 ha mi huang qi

Astragalus banzragczii N. Ulziykhutag; A. centraligobicus Z. Y. Chu & Y. Z. Zhao.

Plants 12-40 cm tall, caespitose, with appressed ± medi­fixed white hairs. Stems several to numerous, ascending to erect, sparsely to loosely covered with hairs 0.3-0.5 mm, often strongly glabrescent with age. Leaves 3-5 cm; stipules nearly semiamplexicaul, 3-4 mm, shortly adnate to petiole, loosely hairy; petiole 0.5-2.5 cm, like rachis loosely hairy; leaflets in (2 or)3 or 4 pairs, remote, ± elliptic, 10-20 × 4-10 mm, both sur­faces loosely covered with hairs 0.8-1 mm, apex acute or acu­minate. Racemes 4-15-flowered; peduncle 5-8 cm, hairy like stem; bracts 3-4 mm, sparsely to loosely hairy. Calyx 7-8 mm, loosely to rather densely hairy; teeth unequal, 1-2 mm. Petals whitish to pinkish; standard obovate, 13-15 × 6-7 mm, apex emarginate; wings 11-13 mm; keel 13-14 mm. Legumes ses­sile, erect, linear, straight to slightly curved, 25-40 mm, 2-3 mm high and wide, with a straight beak 1-2 mm, 2-locular; valves slightly knobby by seeds, loosely covered with ap­pressed hairs up to 1 mm.

Gansu, Nei Mongol, Xinjiang [Mongolia].