Perennial herb forming small to large and extensive, loose to fairly dense mats; stems decumbent, rooting at nodes, ascending at tips, much-branched. Lvs connate at base, 2.3-7 × 0.7-1.6 mm, 0.5-0.8 mm thick, narrowly lanceolate, oblong-lanceolate or elliptic-lanceolate, flattened above, strongly convex below; apex rounded to ± acute. Fls solitary in lf axils, star-like, 4-merous, 3-3.5 mm diam.; pedicels 2-5-(7) mm long, not elongating at fruiting. Calyx lobes 1-1.5 × 0.5-0.6 mm, triangular-ovate, acute or subacute. Petals 1.2-1.8 × 0.8-1 mm, broadly elliptic-ovate, white with pink flush, subacute, somewhat > calyx. Scales c. 0.7 mm long, oblanceolate. Follicles smooth. Seed c. 0.5 mm long.
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