Suffrutescent usually decumbent or ± erect herb up to 30 cm tall, or trailing and sometimes forming mats; stems ± branched, often reddish, densely pubescent-villous to entirely glabrous. Leaves opposite or alternate, rarely sub-3-nate, mostly sessile, somewhat fleshy; leaf-lamina 5-15(20) x 0.5-5(7) mm, linear, linear-oblong, ovate, elliptic or obovate, rounded at the apex, ± cuneate at base or narrowing into a short petiole, margins entire or 1-4-dentate towards the apex. Fascicles of 7-11(15) flowers, of which the central one is hermaphrodite and has a filiform pedicel 0.3-1.8 mm long and the others are female and sessile or almost so. Calyx-tube slightly constricted at the apex, c. 0.3 mm long, with 8 smooth or 3-4-mamillate longitudinal ribs and ± distinct nerves alternating with the ribs; calyx-lobes c. 0.2 mm long, narrowly triangular, acute. Petals 4, 0.8-1.2 mm long, oblong, slightly cucullate, absent in female. Stamens 4, oppositisepalous; anthers linear; filaments filiform. Styles short; stigmas capitate, papillose. Nutlets up to 0.9 x 0.6 mm, barrel-shaped, reddish-brown, with 8 smooth or (2)3-4-tuberculate longitudinal ribs often confluent in pairs, tubercules whitish, glabrous to villous.
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Monoecious or dioecious, prostrate, leafy perennial to 10 cm, stems red, glabrescent. Leaves oblanceolate, often coarsely toothed. Flowers in axillary clusters, pink, female sessile, male on filiform pedicels.