Herbs, perennial, to 30 cm tall. Stems flattened to subterete, puberulent to villosulous or hirtellous. Leaves subsessile or with petiole to 1 mm; blade drying thinly papery and blackish, narrowly lanceolate to narrowly elliptic, oblanceolate, or obovate, 5-15 × 2-5 mm, adaxially sparsely strigillose to villosulous, abaxially glabrous except sparsely to densely puberulent to hirtellous along midrib, base cuneate to acute, apex obtuse to acute; 1 main vein, secondary veins not or hardly visible; stipules 1.5-4 mm, often irregularly 3-7-lobed, triangular to linear, tomentulose or villosulous to glabrescent. Inflorescences 1-12 cm, axes strigillose to villosulous, 3-20-flowered; bracts stipuliform, 1-2 mm; pedicels 2-3 mm. Calyx split essentially to base, lobes 5, narrowly triangular, 0.5-1 mm. Corolla white to pink or red, outside puberulent or hispidulous; tube 2-2.5 mm; lobes 5, lanceolate, 2-2.5 mm, acute. Ovary ellipsoid, 1-1.5 mm, densely hairy with hooked trichomes 0.5-1 mm. Mericarps ovoid, ca. 2.5 mm, densely covered with hooked trichomes of 0.5-1 mm. Fl. Jul, fr. Jul-Sep.
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