Plants green, homophyllous or subheterophyllous. Stems 3-15, prostrate to ascending, mat-forming, branched at most nodes, proximal branches divaricate, (5-)10-50(-100) cm. Leaves: ocrea with proximal part cylindric to funnelform, either short, 3-5.5 mm, with distal part soon disintegrating and leaving almost no fibrous remains, or long, 7-12 mm, with distal part with veins inconspicuous, membranous, margins ± lacerate, overlapping towards apices of stems and branches; petiole 0.5-3 mm; blade green, lateral veins visible but not raised abaxially, elliptic to narrowly elliptic or oblanceolate, (6.2-)8-27(-35) × (1.4-)2-7(-10) mm, 2.8-5.7(-6.5) times as long as wide, apex obtuse or acute, rarely longitudinally striate; stem leaves 1-2.3(-3.4) times as long as branch leaves. Cymes uniformly distributed or, sometimes, crowded at tips of branches, 2-7-flowered. Pedicels enclosed in ocreae, 1-2.5 mm. Flowers: perianth (1.8-)2-3.4(-4) mm, 1.5-2.9 times as long as wide; tube 40-57% of perianth length; tepals overlapping but spreading slightly in fruit, green or reddish brown with white margins, oblong, flat or obscurely cucullate in fruit, outer tepals not pouched at base; midveins unbranched, thin to moderately thickened; stamens 5-7. Achenes usually slightly exserted from perianth, dark brown, ovate, (2-)3-gonous, 1.5-2.7(-3) mm, faces evidently unequal, flat to concave, apex straight or slightly bent toward narrow face, almost smooth, roughened, or coarsely striate-tubercled; late-season achenes common, 2.5-4.5 mm. 2n = 40, 60.
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