An erect, slender, glabrous annual, 1–2 ft. high. Leaves 3-foliolate, chiefly from the lower part of the stem, on rather long, slender petioles, usually exceeding the lanceolate or linear-lanceolate, acute or acuminate, minutely setose-serrulate, subsessile leaflets. Racemes at length elongate, lax. Bracts minute, subulate. Pedicels very short, patent, 1–3 lines long. Sepals linear-subulate, unequal. Petals linear-spathulate, about 1/2 in. long in our specimens. Stamens 10–12. Capsules spreading, narrow-linear, elongate, 3–4 in. long, glabrous, longitudinally 3–4-nerved, on a gynophore of 1/2– 3/4 in. Seeds globose, reniform, transversely rugose, with intermediate longitudinal striæ.
