甘肃黄耆 gan su huang qi

Plants 10-20 cm tall; hairs appressed to ± spreading, thin, long, white, in inflorescence white and black or black. Stems mostly several, 2-5 cm, at base glabrous, in upper part covered with mostly spreading hairs. Leaves 3.5-11 cm; stipules 6-11 mm, long ciliate, basal ones vaginate-connate, leafless; petiole 1.5-3 cm, like rachis spreading hairy; leaflets in 10-16 pairs, ovate to elliptic, 5-10 × 3-6 mm, obtuse, both surfaces ap­pressed gray sericeous. Racemes 1.5-3 cm, densely 8-18-flow­ered, at fruiting time elongated up to 11 cm; peduncle 4.5-10.5 cm, with white and black hairs; bracts narrowly triangular, 5-8 mm, hairy, often reflexed. Calyx 7-9 mm, rather densely cov­ered with long, appressed to ascending, mostly black hairs; teeth 2.5-4 mm. Petals (in dry state) violet to blue-violet; standard widely elliptic, 13-16.5 × 6-8.5 mm, apex emarginate; wings 15-17 mm; keel 14-16 mm. Ovary with a stipe 3.5-4 mm, densely white or white and blackish hairy; style glabrous; stig­ma shortly hairy. Legumes (unripe) with a stipe 5-7 mm, more than 10 mm, densely covered with ascending black hairs ca. 0.5 mm.

● Gansu, Qinghai, Xizang.