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Slender perennial herb up to 40–60 cm. tall, stems often rooting at the nodes, sparsely pubescent. Leaves trifoliolate, petiolate, petioles slender, up to 5–10 cm. long, glabrous or sparsely pubescent, leaflets up to 4 x 3 cm., ovate to ovate-lanceolate, apex acute to rounded, margins crenate-dentate, base truncate, rounded or slightly cordate, sparsely pubescent or strigulose. Flowers white, greenish-white or greenish-yellow, pedicellate, pedicels up to 4 mm. long, in corymbose racemes. Sepals 2–3 x 1–1.5 mm., suberect, obovate-oblong. Petals 4, 5 x 1.5 mm., narrowly oblanceolate or cuneate. Stamens 6. Silique 25–45 x 1.5–2 mm., straight, linear, flattened, tapering gradually, with pedicel 3–12 mm. long. Seeds 1.8–2 x 1.2–1.5 mm., flattened-ellipsoid, brownish.