Perennial shrubs, glabrous, sometimes glaucous, to 40 cm high; branches woody, erect. Leaves obovate, 15–30 mm long, 10–20 mm wide, thick, leathery, the base attenuate into petiole. Inflorescence a raceme. Sepals 3–5 mm long. Petals narrowly lanceolate, 4–6 mm long, less than 1 mm wide, white. Stamens 6. Style 2–3 mm long, exserted. Silicula dehiscent, elliptic, 5–7 mm long, 4–5.5 mm wide; wing one-sixth length of fruit, forming open notch; pedicels 5–7 mm long, spreading, often papillose, Seeds 2–3 mm long, 1.5–2 mm wide; radicle incumbent.
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