河西黄耆 he xi huang qi

Plants 20-40 cm tall, acaulescent to subacaulescent, rather densely caespitose. Stems several to numerous, branched at base, sometimes 2-6(-10) cm, densely white hairy. Leaves 4-12 cm; stipules 1.5-2.5 mm, white hairy; petiole 2-5 cm, like rachis densely appressed white hairy; leaflets in 3 or 4(or 5) pairs, linear to narrowly elliptic, 10-20(-23) × 1-2(-3) mm, both surfaces appressed hairy. Racemes 2-3 cm, rather densely many flowered, elongating in fruit up to 12 cm; peduncle 6-20 cm, slender, appressed white hairy; bracts 1.5-2.5 mm, sparsely appressed black hairy. Calyx 8-11 mm, densely appressed white and sparsely black hairy; teeth 2-2.5 mm. Petals pink; standard 14-18 mm, limb narrowly obovate, in middle slightly constricted, apex retuse; wings 12-15 mm; keel 10-12 mm. Legumes stipitate, linear, 14-18 mm, ca. 2 mm high and wide, with a beak 1-2 mm; valves densely appressed white and black hairy.

● Gansu (Nan Shan).