南山黄耆 nan shan huang qi

Plants tall, up to 30 cm or more, basal parts unknown. Stem up to 30 cm, loosely to rather densely covered with spreading white hairs and sometimes below nodes with a few black hairs 0.15-0.3 mm. Leaves 2-4.5 cm; stipules 2.5-3 mm, free, loosely to rather densely covered with ascending to nearly spreading white hairs, at base also black hairy; petiole 0.3-1 cm, together with rachis white hairy like stem; leaflets in 4-6 pairs, narrowly elliptic, 4-8 × 1-3 mm, mostly folded, abaxially rather densely covered with subappressed to ascending hairs up to 0.3 mm, adaxially glabrous, apex rounded to slightly emar­ginate. Racemes at anthesis short, densely many flowered, dis­tinctly elongating in fruit; peduncle 1-6 cm, white hairy like stem; bracts 2-2.5 mm, sparsely black hairy. Calyx ca. 3 mm, rather densely covered with subappressed, black and white hairs up to 0.5 mm; teeth 1-1.5 mm. Petals violet; standard widely elliptic, ca. 7 × 4.5 mm, apex emarginate; wings ca. 5.5 mm, limbs obovate, rounded at apex; keel ca. 4 mm. Ovary sessile, nearly globose, glabrous. Legumes unknown.

● About 3600 m. Qinghai (Qinghai Nanshan).