矮型黄耆 ai xing huang qi

Astragalus brachymorphus Nikiforova; A. commixtus Bunge var. abbreviatus Popov.

Stems 0.5-3 cm, densely villous with ascending to spreading hairs 0.4-1 mm. Leaves 4-10 cm; stipules 4-7 mm, ciliate; petiole 1-5 cm, with rachis loosely hairy; leaflets in 4-7 pairs, narrowly elliptic, 3.5-18 × 1-4 mm, abaxially loosely to rather densely covered with ascending hairs, adaxially sparsely to loosely covered, apex narrowly rounded to emarginate. Ra­cemes densely 1-3(-5)-flowered; peduncle nearly absent or up to 3(-4) cm, hairy like stem; bracts whitish membranous, 1-2 mm, ciliate. Calyx tubular, 5-7 mm, rather densely covered with ascending white hairs, toward teeth also with black hairs; teeth subulate, 2-3.5 mm. Petals whitish or at least standard often violet; standard 8-10 mm, limb in middle transverse-elliptically dilated, 4-5 mm wide; wings 6.5-8 mm; keel 6-7 mm. Legumes linear, slightly curved, 1-2.5 cm, ca. 3 mm high and 3.5-4.5 mm wide, with hooked beak, incompletely 2-locu­lar; valves subleathery, straw-colored, densely covered with appressed to ascending hairs 0.1-0.3 mm and loosely with nearly spreading hairs 1-2 mm.

Steppes, semideserts; 1000-2400 m. Xinjiang, Xizang [Afghani­stan, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan; SW Asia (Iran)].