厚叶黄耆 hou ye huang qi

Plants caespitose, up to 13 cm tall, very sparsely covered with subappressed hairs 0.1-0.3 mm. Stems several, up to 6 cm, glabrous. Leaves 3-5 cm; stipules ovate to suborbicular, 3-7 mm, glabrous; petiole 1.5-2.5 cm, like rachis somewhat flat­tened, glabrous; leaflets thickish, in 5-9 pairs, mostly touching, suborbicular or widely cordate, 3-7 × 3-7 mm, sometimes also reniform and wider than long, glabrous on both surfaces or sparsely white hairy abaxially, base widely rounded to retuse or slightly cordate, apex widely obtuse to slightly acute. Racemes rather densely 7-12-flowered; peduncle 3-8 cm, very sparsely to loosely covered with white and toward raceme black hairs; bracts elliptic, 5-7 mm, black hairy. Calyx 6-7 mm, rather densely black hairy; teeth 3-3.5 mm. Standard suborbicular, 9-10.5 × 7-7.5 mm, apex incised; wings 9-10 mm; keel ca. 7 mm. Legumes subsessile, obliquely ovoid, 10-13 mm, 6-7 mm high and 4-6 mm wide, keeled ventrally, narrowly grooved dor­sally, very shortly acuminate, nearly fully 2-locular; valves thin, membranous, sparsely covered with ascending white hairs up to 1.5 mm and very short black hairs.

● Alpine meadows; 3000-4900 m. Sichuan, Xizang, Yunnan.