Divaricately branched shrub to 1 m high. Branches slender, attenuate, sparsely strigose or appressed-pubescent to glabrous. Leaves alternate, subterete, mostly 2–4 mm long, glabrous to sparsely strigose or villous. Flowers solitary forming dense leafy spikes, bisexual. Fruiting perianth glabrous or sparsely villous above, dark brown when dry; tube shallowly hemispherical, 1.5–2 mm diam.; wing (when present) horizontal, simple (sometimes shortly lobed opposite tepals), c. 7 mm diam., thin, crenulate on margin, with a single radial (radicular) slit; upper perianth slightly convex.