75. Astragalus munroi Bunge, Mém. Acad. Imp. Sci. Saint Pétersbourg, sér. 7. 11(16): 30. 1868.
细梗黄耆 xi geng huang qi
Astragalus longicalyx C. C. Ni & P. C. Li.
Plants 30-70 cm tall; hairs thin, mostly spreading, in vegetative parts only white, 1-4 mm. Stems in lower part often leafless, densely villous. Leaves 4-10 cm; stipules whitish membranous, linear-acute, 10-15 mm, free, hairy; petiole 1-2.5 cm, like rachis densely covered with spreading hairs 1-2 mm and with somewhat fewer hairs up to 4 mm; leaflets in 9-11 pairs, narrowly oblong to narrowly elliptic, 10-25 × 2-5 mm, abaxially loosely to rather densely covered with spreading hairs up to 4 mm, adaxially glabrous, apex rounded to subobtuse, minutely acuminate-mucronulate. Racemes loosely 3-6-flowered; peduncle 0.5-1 cm, with spreading white hairs; bracts whitish membranous, linear-acute, 10-18 mm, hairy. Calyx ca. 20 mm, covered with long, spreading, white hairs; teeth linear to subulate, 10-12 mm. Petals yellow; standard elliptic, 20-22 × 7-9 mm, apex emarginate; wings ca. 18 mm; keel ca. 19 mm. Legumes with a curved stipe 4-5 mm, inflated ellipsoid, 20-30 mm, 12-14 mm high and wide, widely grooved ventrally and dorsally, with a slightly curved beak ca. 5 mm, 2-locular; valves thin, rather densely villous, hairs very fine, tangled, ± spreading, 2-3 mm.
3000-5200 m. Xinjiang, Xizang [NW India].