Astragalus muliensis Hand.-mazz.

Plants up to 60 cm tall, with appressed to subappressed hairs 0.2-0.3 mm. Stems several, at base ca. 2 mm thick, sub­glabrous or sparsely covered with mainly black hairs. Leaves 6-10 cm, upper ones nearly sessile, lower ones with petiole up to 2 cm; stipules very narrowly triangular, 5-6 mm, glabrous or ciliate; rachis sparsely subappressed hairy; leaflets in 5-8 pairs, narrowly ovate to narrowly elliptic, 10-22 × 4-8 mm, abaxially covered sparsely to loosely with appressed hairs 0.3-0.8 mm, adaxially glabrous, apex widely rounded to shallowly notched. Racemes loosely 12-15-flowered, 3-4 cm, at fruiting time elon­gated; peduncle 8-15 cm, sparsely to loosely covered with ap­pressed to ascending short black hairs; bracts whitish membra­nous, filiform to linear-acute, 3-4 mm, sparsely black hairy. Calyx campanulate, 4.5-5 mm, rather densely covered with subappressed black and sometimes a few white hairs; teeth slightly unequal, 1-2 mm. Petals blue or bluish violet with yel­lowish base; standard obovate, 10-11 × 5-6 mm; wings 9-10 mm; keel ca. 8 mm. Legumes (unripe) with a long slender stipe, acute at both ends; valves densely brownish hairy.