Trees, climbing to erect shrubs, or perennial herbs. Leaves pinnately 3-foliolate; stipules small to medium-sized, caducous. Flowers large, orange-red or red, densely clustered in axillary or terminal racemes or panicles; bracts and bracteoles small, caducous. Calyx campanulate; teeth short, obtusely triangular, upper 2 connate into a broad entire or emarginate lip. Corolla medium-sized to large, exserted; petals subequal in size; standard ovate or lanceolate, apex acute, recurved, not appendaged; wings falcate, adherent to keel; keel longest, incurved, apex acute, back connate into a ridge. Stamens diadelphous; anthers uniform. Ovary sessile or shortly stipitate, 2-ovuled; style elongated, incurved, glabrous; stigma small, terminal. Legumes oblong, compressed, apex rounded, with 1 seed at top, empty and not dehiscent in lower part, often with stipe at base. Seed obovate; hilum small, estrophiolate.
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