东坝子黄耆 dong ba zi huang qi

Plants 60-90 cm tall. Stem branched, ca. 3 mm in diam., hollow, glabrous in basal parts, otherwise sparsely covered with short appressed black hairs. Leaves on main stem 8-10 cm; stipules 5-7 mm, free, sparsely black ciliate; petiole 1-1.5 cm, like rachis sparsely to loosely appressed to spreading black hairy; leaflets in 7-9 pairs, elliptic, 10-24 × 4-9 mm, abaxially loosely and when young densely covered with short appressed white hairs, adaxially glabrous, apex rounded or slightly emar­ginate. Racemes loosely many flowered; peduncle 6-10 cm, sparsely black hairy; bracts greenish, ovate to widely ovate, 4-7 mm, black and white hairy, very soon falling. Calyx 6-7 mm, loosely covered with short appressed to ascending black and white hairs; teeth unequal, 1-2.5 mm. Petals cream, sometimes flushed with red, all of same length; standard rectangular-ob­long, 12-13 × 5-6 mm, apex incised. Ovary with a stipe 3-4 mm, spindlelike, glabrous, obviously with a narrow septum. Legumes with a slender stipe 2-5 mm, 10-12 mm, ca. 4 mm high and ca. 3 mm wide, keeled ventrally, widely and deeply grooved dorsally, with a beak 2-4 mm, nearly completely 2-locular; valves rather thin, glabrous.

3300-4100 m. Xizang, Yunnan [Bhutan, Nepal].