Woody climber. Leaves pinnately 3-foliolate; stipules and stipels present, not spurred nor auriculate at the base. Inflorescences axillary, pseudo-racemose, the flowers in small fascicles along the axis which is swollen at their point of insertion. Flowers rather small, purplish. Calyx 5-lobed, 2-lipped, the lower 3 lobes rounded-triangular, the upper pair of lobes united to form a slightly emarginate lip. Standard auriculate and with appendages, glabrous; wings with rather a long narrow spur; keel without a basal spur, incurved through a right-angle or slightly more, not markedly beaked. Vexillary stamen free; anthers uniform. Ovary linear, 6–12-ovuled; style long, incurved, barbate inside towards the apex and with a reflexed appendage above the oblique stigma. Pod linear-oblong, the valves twisting after dehiscence, ± filled. Seeds small; hilum small, central, broadly elliptic; no noticeable aril present.
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