皮山黄耆 pi shan huang qi

Plants 20-25 cm tall. Caudex with ± elongated, slender, branched stolons. Stems 15-20 cm, loosely to rather densely covered with appressed to ascending white hairs 0.3-0.6 mm, below nodes often predominantly black hairy, mostly glabrous at base. Leaves 4-5 cm, uppermost subsessile, others with a petiole 0.6-2 cm; stipules greenish, ovate, 4-5 mm, free from petiole and from each other, all black ciliate; petiole and rachis loosely to rather densely covered with appressed to subap­pressed, tangled, white hairs up to 0.5 mm, with black hairs mixed in; leaflets in 4 or 5 pairs, narrowly elliptic to elliptic, 5-13 × 1-4.5 mm, abaxially loosely to rather densely covered with appressed white hairs 0.3-0.5 mm, adaxially glabrous, apex rounded to subacute. Racemes capitate to ovoid, 2-3 cm, densely many flowered, slightly elongating with age; peduncle 3-7 cm, rather densely white hairy like rachis, toward raceme increasingly with black hairs; bracts whitish membranous, line­ar, ca. 5 mm, black hairy. Calyx 4.5-5 mm, rather densely covered with subappressed to ascending black hairs 0.3-0.5 mm; teeth 1.5-2 mm. Petals whitish to yellow; standard obo­vate, ca. 8 × 5 mm, apex slightly emarginate; wings ca. 7 mm, limbs obovate; keel ca. 6 mm. Ovary very shortly stipitate, ovoid, glabrous. Legumes unknown.

● About 3300 m. Xinjiang.