Rather slender herbs seldom attaining 1 m. in height; stems essentially glabrous, unarmed; leaves palmately compound or the lower simple, the petioles 3-6 cm. long, scatteringly pilosulose to glabrous, the leaflets 3-1, lanceolate to ovate, acuminate, obtuse at the base, 3-15 cm. long, 1-6 cm. broad, minutely callose-serrulate, essentially glabrous; inflorescence a rather few-flowered raceme, the peduncle essentially glabrous, somewhat elongated in fruit, the bracts setose and caducous or obsolete, the pedicels 1.0-1.5 cm. long, essentially glabrous, somewhat accrescent in fruit; sepals ovate-lanceolate, acuminate, 4-5 mm. long, glabrous; petals elliptic-oblanceolate, about 8 mm. long, pale purple or greenish to white; stamens 6, the filaments 5-7 mm. long, attached somewhat above the base of the androgynophore, the anthers about 4 mm. long; disc obsolete; ovary about 5-6 mm. long, glabrous, the stigma sessile, the gynophore about 2 mm. long, not elongating in fruit; silique about 4-8 cm. long, about 3 mm. thick, glabrous; seeds cochleate-reniform, dark brown, conspicuously tuberculate, about 2 mm. long.
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