Herbs annual. Stems decumbent, 30-70 tall, slender, branched at base, glabrous, angulate. Petiole 5-7 mm, appressed hispid; leaf blade ovate-lanceolate or ovate, 3-6(-8) × 1-2(-3) cm, papery, both surfaces sparsely appressed hispid or glabrescent, midvein prominent abaxially, base broadly cuneate, margin ciliate, apex caudate-acuminate; ocrea tubular, 4-6 mm, thinly membranous, appressed hispid, apex truncate, cilia 7-8 mm, stout. Inflorescence terminal or axillary, spicate, lax, 5-10 cm, interrupted below; bracts greenish, funnel-shaped, glabrous, margin ciliate, each 3-or 4-flowered. Pedicel short. Perianth pinkish, 5-parted; tepals elliptic, 2-2.5 mm. Stamens 8, exserted. Styles 3, connate at base; stigmas capitate. Achenes included in persistent perianth, blackish brown, shiny, ovoid, trigonous, 2-2.5 mm. Fl. Jun-Sep, fr. Jul-Oct.
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A herb. It grows each year from seed. The stems lie along the ground and are 30-70 cm long. The plant is branched at the base. The leaves are oval and 3-6 cm long by 1-2 cm wide. The flowering shoots can be in the axils of leaves or at the ends of branches. The fruit is 3 sided.
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