沙生黄耆 sha sheng huang qi

Astragalus ammophilus Karelin & Kirilov.

Plants with mostly white hairs 0.05-0.6 mm. Stems 4-27 cm, prostrate to ascending, appressed to spreading hairy. Leaves 2-7 cm; stipules whitish or greenish, 1-2.5 mm, appressed hairy or ciliate; petiole 1-2.3 cm, sparsely spreading hairy; leaflets in 3-7 pairs, narrowly obovate to obovate, 2-8.5 × 0.8-4.5 mm, abaxially appressed hairy, adaxially glabrous, apex retuse. Ra­cemes 3-10-flowered, sometimes with 2 superposed and remote whorls of flowers; peduncle 0.5-7 cm or sometimes absent, appressed or rarely spreading hairy; bracts hyaline, 0.8-1.2 mm, ciliate. Calyx campanulate, 2.5-3 mm, loosely to densely spreading hairy; teeth subulate, 0.8-1 mm. Petals whitish to pale violet; standard narrowly elliptic, 4.5-6 × ca. 2 mm, rounded at apex; wings 4-4.5 mm; keel 3-3.8 mm. Legumes ovoid-triangular, 6-9 mm, ca. 3 mm high and wide, widest at base, straight or slightly curved at ventral side, strongly curved at dorsal side, with a beak 0.7-1 mm; valves thin, glabrous or subappressed hairy.

From the plains up to 3000 m. Xinjiang [Afghanistan, Kazakh­stan, Kyrgyzstan, Pakistan, Russia, Tajikistan, Turkmenistan, Uzbeki­stan; SW Asia (Caucasus, Iran)].