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Plants glabrous throughout or puberulent, trichomes usually minutely forked, some simple. Stems (0.2-)0.5-2.2(-3) dm. Basal leaves: petiole (0.2-)0.5-1.2(-2) cm; blade obovate, oblanceolate, or oblong, (0.2-)1-2.5(-4) cm × (1-)5-11(-16) mm, base cuneate or attenuate, apex acute or obtuse. Cauline leaves (distal) subsessile; blade similar to basal (smaller distally). Racemes few-to several-flowered (rachis straight or slightly flexuous in fruit). Fruiting pedicels 3-8(-12) mm. Flowers: sepals 0.6-1.1 × 0.4-0.6 mm; petals 0.6-1.2 × 0.3-0.6 mm; filaments (white), 0.5-1 mm; anthers ca. 0.1 mm. Fruits (0.2-)0.3-0.4(-0.5) cm × (1-)1.4-2.2 mm, apex subtruncate to slightly emarginate. Seeds 0.5-0.6 × 0.3-0.4 mm. 2n = 12, 24.
Annual or biennial herbs. Stems erect or procumbent 3-30 cm high, glabrous or sparsely puberulous. Leaves 1-2 cm long, oblanceolate, cuneate, entire or the lower ones pinnatifid with 3-7 lobes. Inflorescence dense with the flowers overtopping the buds, elongate in fruit. Sepals 0.8-1 mm long, elliptic, tinged with pink. Petals 1-1.5 mm long, spathulate, white. Siliculae on 3-5 mm long pedicels spreading at right angles, 2-3(-5) mm long, ellipsoid to obovoid; valves membranous, net-veined. Seeds 12-18, ovoid. c. 0.5 mm long.
Annual herb, procumbent to erect, 4–30 cm tall, slender, glabrous. Basal leaves ovate to lanceolate, pinnatifid or pinnatipartite, 1–2 cm long, petiolate; upper leaves linear, entire. Sepals 0.7–1 mm long. Petals to 1 mm long, white. Stamens 4 or 6. Style short. Silicula 3–6 mm long, 1.7–2.3 mm wide, ovate-oblong; valves convex-keeled, membranous, net-veined, the midvein prominent; pedicels 2–13 mm long, filiform, spreading. Seeds 0.75 mm long, ovate.
A herb.
