Plants gray-green or bluish green, rarely green, homophyllous or subheterophyllous. Stems 1–3, erect to ascending, ± unbranched, 5–15 cm, or numerous, procum-bent, mat-forming, extensively branched, 20–70(–200) cm. Leaves: ocrea 3.5–6.5(–8) mm, proximal part cylindric, distal part silvery, relatively persistent, with inconspicuous veins, leaving almost no fibrous remains after disintegrating; petiole 0.3–2(–3.5) mm; blade green or gray-green, lateral veins visible but not raised abaxially, lanceolate to elliptic, oblanceolate, or obovate, 6–30(–45) × 3–6(–13) mm, 2.5–5.6(–10) times as long as wide, apex acute to obtuse; stem leaves 1–2.5 times as long as branch leaves. Cymes mostly uniformly distributed, but also aggregated at tips of stems and branches, 2–6-flowered. Pedicels mostly enclosed in ocreae, 1–2.5 mm. Flowers: perianth (2–)2.3–3.4(–3.6) mm, 0.9–1.3(–1.5) times as long as wide; tube 20–36% of perianth length; tepals overlapping, green with white or sometimes pink margins, oblong, apex cucullate, outer tepals pouched at base; veins branched, moderately to strongly thickened; stamens 7–8. Achenes usually enclosed in perianth, light brown to brown, ovate, 3-gonous, (1.8–)2–2.8(–3) mm, faces subequal, concave to flat, apex straight, coarsely striate-tubercled to obscurely tubercled; late-season achenes common, 2.5–5 mm. 2n = 60.
