Stems prostrate to decumbent-ascending, 0.2–1.5(–2) dm, herbage glabrous to sparingly farinose. Leaves: blade of principal leaves oblanceolate to spatulate, 0.4–2.2 cm × 1–4(–6) mm, attenuate into petiolar base, margins entire, apex obtuse to rounded. Flowers: outer pistillate, usually lacking perianth; central bisexual, perianth segments 2–3, spatulate or obovate, ca. 0.5 mm; stamens 1–2. Utricles 0.5–0.7 mm; pericarp readily separating from seed, pale brown, turning black and dull, tuberculate-papillose. Seeds brown, ± lenticular, shiny. 2n = 18.
