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Species of this Genus


Annual herbs. Leaves pinnately trifoliolate; stipules adnate to petioles; stipels absent. Flowers solitary, axillary or capitate or densely racemes on very short or elongated axillary peduncles; bracts minute or obsolete; bracteoles absent. Sepals 5, connate in a tubular calyx, teeth distinct, subequal. Petals free from staminal tube, standard obovate or oblong, shortly clawed or sessile, wings oblong, longer than keels. Stamens 10, vexillary filament free or connate in middle, filaments filiform, anthers uniform. Ovary sessile or shortly stipitate, many-ovuled, styles filiform, beardless, stigmas terminal. Fruit an indehiscent lomentum, less often a follicle, opening by ventral suture, rarely a pod, beaked, linear, compressed or terete, straight or falcate, continuous within. Seeds numerous.