丝叶黄耆 si ye huang qi

Plants subshrubby, ca. 30 cm tall, covered with medifixed, appressed hairs. Stems shortly ligneous in lower part, parts of current year up to 18 cm, loosely furnished with hairs 0.4-0.5 mm. Leaves 2-4.5 cm; stipules 1.5-3 mm, hairy like stem; petiole 0.8-2 cm, very slender, with rachis loosely to rather densely hairy like stem; leaflets in 2-4 pairs, filiform, (4-)8-20 × 0.3-0.5 mm, both surfaces loosely covered with hairs 0.5-1 mm. Racemes 2.5-4 cm, 3-7-flowered; peduncle 6-11 cm, hairy like stem; bracts 1.5-2 mm. Calyx 11-12 mm, rather densely covered with white and black hairs 0.5-1 mm; teeth 2-3 mm. Petals yellow; standard obovate, ca. 20 × 7-8 mm, in middle constricted, apex emarginate; wings ca. 18 mm; keel ca. 15 mm. Legumes (not fully ripe) linear, straight, 30-35 mm, ca. 2 mm high and wide, shortly acuminate; valves densely covered with ± medifixed, appressed, predominantly black hairs 0.3-0.5 mm.

● Xizang.