Small annual or perennial herb forming small clumps; stems 2-5-(15) cm long, decumbent, slender, sometimes rooting at nodes in moist conditions, much-branched. Lvs connate at base, 2-2.5-(4) × 0.5-0.7-(1) mm, c. 0.7 mm thick, lanceolate or ovate-lanceolate, flattened above, convex beneath; apex acute. Fls in small cymose clusters in lf axils, not star-like, 4-merous, 2-3 mm diam.; pedicels < 1 mm long at anthesis, to c. 2 mm long and ± = lvs at fruiting. Calyx lobes c. 1-1.2 × 0.7-0.8 mm, very broadly ovate, acute to short-acuminate. Petals c. 0.8-0.9 × 0.5-0.6 mm, broadly ovate, green or reddish green with pink tips, shortly acuminate, slightly < calyx lobes. Scales c. 0.3 mm long, very narrowly spathulate. Follicles smooth. Seed 0.3-0.5 mm long.
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