Herbs weak, glabrous, dioecious. Stems erect, simple, 5-10 cm tall, ca. 1 mm in diam., succulent. Leaves crowded on upper nodes; stipules persistent, interpetiolar, connate at base, deltoid, ca. 1 mm, membranous; petiole subequal in length, 0.1-0.2 cm; leaf blade elliptic-lanceolate or oblong-linear, subequal in size, 6-12 × 2-4 mm, membranous, 3-veined, lateral pair reaching margin at middle, secondary veins 2-3 each side, inconspicuous, cystoliths linear, conspicuous on both surfaces, base obtuse or emarginate, margin entire, rarely shallowly 1-lobed in middle, apex attenuate, with obtuse tip. Inflorescences solitary, in upper nodes; male a capitulum, peduncle 4-15 mm; glomerules of few flowers, sometimes only 1 developing, bracts ovate-lanceloate, ca. 0.7 mm; female inflorescence a cluster of a few flowers; bracts ovate, 0.6 mm. Male flowers pedicellate, in bud ca. 2 mm; perianth lobes 4, obovate, connate 1/2 of length, subapically corniculate; stamens 4; rudimentary ovary minute. Female perianth lobes unequal, largest lobe cymbiform, subapically corniculate. Achene narrowly ovoid, ca. 0.6 mm, slightly compressed, enclosed by perianth lobes. Fl. Jul, fr. Aug-Sep.
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