Annual, up to 30 cm tall, branched from the base with branches ± ascending or spreading, glabrous above, ± viscid below with short simple glandular hairs. Lower leaves obovate-oblong, shortly stalked, sinuate-dentate, fleshy, 2-6 cm long, 1-2 cm broad, apex obtuse; upper leaves linear-oblong, 10-25 mm long, 1-4 mm broad, obtuse, sessile, ± entire, fleshy. Racemes 10-25-flowered, up to 15 cm long in fruit. Flowers c. 5 mm across, whitish or pinkish; pedicel 8-12 mm long, filiform, increasing up to 20 mm in fruit, often reflexed or pendent. Sepals 2.5-3 mm long, 1-1.5 mm broad. Petals 4-4.5 mm long, 2-2.5 mm broad. Stamens c. 2.5: 3 mm long; anthers c. 0.5 mm long; Siliculae broadly elliptic, flattened in the plane of the septum, 8-16 mm long, 4-8 mm broad, rounded towards both the ends, with 1.5-2.2 mm long style-like beak towards the apex and less than a mm long stipe (gynophore) towards the base; septum membranous veined; seeds usually c. 10 in each locule, biseriate, 2.5-3 mm (incl. the wing) in diameter.