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Slender annual or perennial herb. Stems prostrate, ascending, terete, glabrous, (5)-10-20-(50) cm long. Lvs green; marginal vein distinct; lamina glabrous, broadly ovate to orbicular, rarely lanceolate, apiculate, truncate at base, (3)-5-10-(20) × (3)-5-10-(20) mm; petiole < lamina, glabrous or ciliate. Infl. 1-(2)-flowered. Bracts scarious, ovate, c. 1 mm long. Pedicels ascending, to 15 mm. Sepals narrow-lanceolate, acute, 2-3-(3.5) mm long, not veined; margins scarious, glabrous. Petals much < sepals or 0. Stamens 5-10. Capsule ovoid, = or slightly > calyx. Seeds dull dark brown, 0.8-1.2 mm long; papillae low, rounded, broader than long.
Prostrate, perennial herb; stems glabrous, rooting at nodes, sparingly branched. Leaves petiolate, glabrous; lamina ovate, 4–13 mm long, 2.8–11 mm wide; petiole to 8 mm long, winged, shortly sheathing at base, with sparse hairs on margins. Flowers paired in axils of leaves, the pair of flowers subtended by 2 broadly lanceolate green to hyaline hooded bracts, sessile or on peduncle to 3.5 mm long. Pedicels glabrous, unequal, 4.2–6 mm long, one naked, one with a pair of bracts just above its midpoint. Sepals 2.5–2.8 mm long, glabrous. Petals divided almost to base.
