Herbs perennial. Stems densely tufted, diffuse, purplish, subterete, 10--30 cm tall, dichotomously branched, densely glandular hairy. Leaves oblong-lanceolate, 1--2 cm × 2--10 mm, margin hairy or glabrous, midvein conspicuous, raised abaxially, impressed adaxially, base narrowed, apex acute. Flowers in terminal dichotomous cymes; bracts lanceolate, 1.5--3 mm, both surfaces glandular hairy. Pedicel 0.3--2 cm. Sepals 5, oblong-lanceolate, 4--5 × ca. 1 mm, outside shortly hairy or glabrous, margin broadly membranous, apex acute. Petals 5, obovate, ca. 3 × 2 mm, shorter than sepals, apex 2-cleft to 1/4--1/3 length, base cuneate. Stamens 10, ca. 3 mm. Ovary globose, 1-loculed; ovules 4 or 5; styles 2(or 3), 2--3 mm. Capsule obovoid, ca. 2.5 mm, shorter than persistent sepals, 4(or 6)-valved. Seeds 1(or 2), black-brown, ovoid to obovoid, 1.5--1.8 mm, tuberculate. Fl. Jul, fr. Aug.
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