Much-branched shrub c. 50 cm high. Branches woolly. Leaves alternate, spreading, semiterete, 3–5 mm long, c. 1 mm wide, woolly, rounded at apex. Flowers solitary, bisexual, glabrous except woolly-ciliate margin to lobes. Fruiting perianth dark brown to black when dry, glabrous; tube shortly hemispherical, 1 mm high, 2 mm diam., faintly costate, firmly crustaceous; wing simple, horizontal, to 6 mm diam., with prominent dark brown venation and a single radial (radicular) slit; upper perianth thickened and convex around margin, thin and sunken in centre.