中宁黄耆 zhong ning huang qi

Astragalus transiliensis Gontscharow var. microphyllus S. B. Ho.

Plants 10-20 cm tall, acaulescent. Leaves 2.5-7 cm; stip­ules ca. 3 mm, free from each other; petiole 1.5-2.5 cm, like ra­chis densely covered with medifixed, appressed, white hairs 0.4-0.6 mm; leaflets in 6 or 7 pairs, 3-6 × 1-2.5 mm, both surfaces densely covered with appressed hairs ca. 0.8 mm, apex subacute. Racemes subglobose to ovoid, dense; peduncle 4-8 cm, densely covered with medifixed, appressed, white hairs 0.4-0.5 mm; bracts 2-3 mm, white hairy, at margins also with basifixed hairs. Calyx 12-13 mm, at beginning of anthesis tubu­lar, slightly inflated, later on inflated cylindric, densely covered with symmetrically or asymmetrically bifurcate, subappressed, flexuous, white hairs 0.8-1 mm, at teeth with some black hairs mixed in; teeth 2.5-4 mm. Petals ?purplish. Standard obovate-oblong-pandurate, ca. 19 × 7 mm, distinctly constricted below middle, apex emarginate; wings ca. 19 mm, limbs narrowly obo­vate, obliquely emarginate; keel ca. 18 mm. Ovary sessile, nar­rowly ellipsoid, densely covered with subappressed to ascending white hairs up to 1 mm.

Nei Mongol, Ningxia, Qinghai [Mongolia].