拉萨膨果豆 la sa peng guo dou

Astragalus lasaensis C. C. Ni & P. C. Li, Acta Phytotax. Sin. 17(2): 107. 1979.

Plants densely covered with appressed or nearly ascending hairs (0.3-)0.5-1 mm. Stems creeping, prostrate to ascending or erect, 15-30 cm, loosely to densely covered with subappressed, tangled, white and brownish black, partly very short hairs. Leaves 2.5-4 cm, nearly sessile; stipules 4-7 mm, densely white hairy; rachis densely hairy; leaflets in 4-9 pairs, 3-10 × 1.5-4 mm, abaxially densely and adaxially loosely silvery hairy. Racemes short, 2-7-flowered; peduncle 1.5-3 cm, rather densely white and black hairy; bracts 6-10 mm, white or white and black hairy. Bracteoles 4-5 mm. Calyx 9-10 mm, densely covered with tangled, subappressed to ascending, white hairs and with mostly distinctly shorter black hairs; teeth 4-5 mm. Petals purple to violet; standard orbicular to transversely ellip­tic, 10-12 × 8-11 mm; wings 10-11 mm; keel 8-10 mm. Leg­umes shortly stipitate, 6-10 mm, 3-4 mm high and wide, with a short beak, nearly fully 2-locular, loosely covered with ap­pressed white and also some black hairs 0.1-0.2 mm.

● 4100-4700 m. Xizang.