袋萼黄耆 dai e huang qi

Astragalus suidunensis Bunge.

Plants 5-17 cm tall, vegetative parts covered with ± medifixed, appressed to ascending, white hairs. Stems 2-12 cm, densely covered with appressed hairs 0.5-0.8 mm. Leaves (3-)4-8 cm; stipules (2-)3-5 mm, adnate to petiole for 1-2 mm, white hairy; petiole 1-2 cm, like rachis slender, rather densely covered with subappressed to ascending hairs 0.8-1 mm; leaflets in (4 or)5-9 pairs, elliptic or narrowly elliptic, (5-)7-13 × 3-6 mm, abaxially densely and adaxially sparsely covered with subappressed to partly ascending hairs 1.2-1.5 mm. Racemes 2.5-5 cm, loosely few flowered; peduncle 2-5(-8) cm, rather densely hairy like rachis, below raceme also with black hairs; bracts 4-8 mm, with ascending white and black, at margins basifixed hairs up to 2 mm. Calyx at begin­ning of anthesis tubular, slightly inflated, soon bladderlike ovoid, 15-20 mm, at fruiting time not ruptured by legume, ra­ther densely covered with ascending, asymmetrically bifurcate to subbasifixed, white hairs 1-2 mm and sparsely, toward teeth more densely, with black hairs; teeth 3-7 mm. Petals ?pinkish violet; standard oblong-obovate, 20-27 × ca. 8 mm, slightly constricted below middle, apex emarginate; wings 20-24 mm; keel 19-23 mm. Legumes subsessile, 11-16 mm, 2.5-3.5 mm high, slightly compressed laterally, with a straight beak 1-3 mm, 2-locular; valves sparsely covered with spreading hairs.

Xinjiang [Kazakhstan].