Weak shrub c. 40 cm high. Branches slender, loosely white-woolly when young. Leaves alternate, sub-terete to obovoid, mostly 3–5 mm long, fleshy, glabrous. Flowers solitary, bisexual, glabrous. Fruiting perianth glabrous, dark brown on wing, rarely pale; tube shortly cup-shaped, 1.5 mm high, 2 mm diam., costate, crustaceous; wing simple, horizontal, firm, 5–6 mm diam., rarely wider, with a single radial (radicular) slit, the margin usually recurved; upper perianth flat or concave, obscuring ovary.