Annuals, 30-70 cm tall, glabrous throughout or rarely puberulent with minute simple trichomes to 0.06 mm. Stems erect, angled, simple or branched above. Basal and lowermost cauline leaves 3(or 5)-foliolate; petiole 4-8 cm; leaflet blade ovate, oblong, or lanceolate, 1.5-5(-6) × 1-2(-3) cm, base subtruncate, cuneate, obtuse, or oblique, margin crenate or repand and with mucronate callosities terminating veins, apex obtuse or acute and mucronate; petiolule of terminal leaflets 0.2-2 cm. Racemes terminal and lateral, ebracteate; rachis slender, straight or subflexuous apically. Fruiting pedicels (1.5-)2.5-4 mm, straight, spreading or reflexed. Sepals oblong, 1.5-2 mm. Petals white, obovate, 2-2.5 mm, apex rounded; claw to 1 mm. Filaments white, 1.5-2 mm; anthers oblong, ca. 0.4 mm. Fruit ovoid or ellipsoid, 3-4 × 2-2.5 mm; valves glabrous; septum absent; style 1-2 mm. Seeds 2 or 3, oblong, 1.5-1.8 × ca. 1 mm. Fl. Apr-Nov, fr. May-Dec. 2n = 42*.
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