Subshrubs, prostrate, ca. 1 m or longer, base branched. Young parts densely grayish yellow tomentose and pubescent. Leaves 1-foliolate or 3-foliolate; petiole 0.8-1.5 cm, densely hairy as young branchlets; terminal leaflet obovate-rhombic, sometimes nearly square, 1.5-2.5 × 1.5-2.5 cm, lateral veins 4-6 on each side of midvein, both surfaces pilose, lateral ones narrowly elliptic or square and 1-1.2 × 0.9-1.1 cm, base slightly cordate, apex truncate. Inflorescences ca. 20 cm, spreading pubescent. Pedicel extremely short at anthesis, to 3-4 mm after anthesis. Calyx initially ca. 4 mm, to 8-10 mm at fruiting; lobes 5, upper 2 free, 1/4-1/3 as long as tube. Legume 4-or 5-jointed, reticulate veined, glabrous. Fl. Aug-Sep, fr. Nov.
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