Decumbent at length, voluble; branches filiform, more or less compressed, angular, puberulous. Stipules lanceolate, acuminate. Leaves trifoliolate. petiolate; Terminal leaflets ovate-suborbicular. 18-30 mm long, 15-30 mm broad, below glandular; common petiole 20-35 mm long. Racemes longly peduncled, densely many-flowered (15-25), much exceeding the leaves. Calyx campanulate, about 10 mm long, glandular; segments linear-lanceolate. Standard obovoid, about 13 mm long; wings obliquely subfalcate-spathulate; carina boat-shaped. Ovary pilose; style filiform, glabrous.
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