网脉胡卢巴 wang mai hu lu ba

Annual herbs, 10-20(-40) cm. Stems prostrate or as­cending, puberulent. Leaves 3-foliolate; stipules linear-lanceo­late, dentate at base; leaflets obtriangular or obovate-triangular, (4-)7-10 × 4-7 mm, appressed pubescent abaxially, glabrous adaxially, lateral veins 5-8 pairs, base cuneate, margin dentate in upper 1/2, apex truncate. Flowers 4-7 in umbellate heads; peduncle axillary, 10-18 mm. Calyx 3-4 mm, veins 5, promi­nent. Corolla yellow, ca. 5 mm; standard ovate-oblong, longer than wings and keel. Ovary linear; ovules numerous. Legume cylindric, 15-20 × ca. 1.5 mm, 4 or 5 in umbel, curved to semi­circular, white pubescent, veins reticulate, beak hooked. Seeds 6-8, brown, oblong, ca. 2.5 × 1 mm, papillose; papillae deep brown. Fl. May-Aug, fr. Jun-Sep.

Alkaline soils on sandy slopes or ravine edges. Xinjiang [Russia (W Siberia); C and SW Asia].