Astragalus orbicularifolius P.C.Li & C.C.Ni

Plants ca. 10 cm tall, subacaulescent, densely caespitose, vegetative parts covered with appressed to subappressed white hairs 0.2-0.3 mm. Stems up to 1 cm, glabrous. Leaves 2-5 cm; stipules 5-7 mm, adnate to petiole for 2-4 mm, behind stem connate to middle, glabrous or toward apex sparsely hairy; peti­ole 0.5-2 cm, like rachis loosely hairy; leaflets in 4-6 pairs, elliptic, 2-4 × 1-2 mm, abaxially loosely to rather densely hairy, adaxially hairy only along margins, apex rounded to slightly re­tuse. Racemes 4-7-flowered; peduncle 1-3 cm, loosely white hairy; bracts ca. 3 mm, black and white hairy. Calyx ca. 3.5 mm, predominantly subappressed black hairy, but also with some longer grayish or white hairs; teeth 1-1.5 mm. Petals red-purple; standard widely elliptic to suborbicular, 6-7 × ca. 4 mm, without distinct claw; wings ca. 5 mm; keel ca. 4.5 mm. Leg­umes sessile, obliquely ovoid to obliquely ellipsoid, 5-6 mm, 3-3.5 mm high and wide, apex shortly acuminate, incompletely 2-locular; valves transversely rugulose, loosely covered with appressed white hairs 0.1-0.2 mm, sometimes also with a few black hairs.