小花兔尾黄耆 xiao hua tu wei huang qi

Astragalus laguroides Pallas var. micranthus S. B. Ho.

Plants 8-12 cm tall, acaulescent, with only white hairs. Leaves 3-6 cm; stipules 3-4 mm, nearly free from petiole, appressed hairy, margin with basifixed hairs; petiole 1-3 cm, like rachis loosely to rather densely covered with medifixed, appressed hairs 0.5-1 mm; leaflets in 2-4 pairs, in basal leaves often only in 1 or 2 pairs, 7-12 × 3-5 mm, both surfaces densely to rather densely covered with medifixed, appressed hairs 1.5-2(-3) mm, apex acute. Racemes ovoid, 3-5 cm, densely many flowered; peduncle 3.5-6 cm, loosely to rather densely covered with medifixed, appressed hairs 0.5-1 mm; bracts ca. 2 mm, covered with mostly basifixed hairs. Calyx 11-12 mm, tubular at beginning of anthesis, soon inflated ovoid, rather densely covered with subbasifixed to basi­fixed, spreading, straight, white hairs 2-3 mm; teeth 3-4 mm. Standard elliptic, ca. 14 × 5 mm, slightly constricted below middle, apex slightly emarginate; wings ca. 13 mm; keel ca. 12 mm. Ovary sessile, hairy. Legumes unknown.

● Nei Mongol.