Herbs perennial. Roots spinose or conic. Stems sparsely clustered, lustrous yellow or violet, 8--12 cm, nodose hairy and long hairy. Leaf blade ovate, 4--6 × 2--3 mm, both surfaces glandular pubescent, base cuneate, apex obtuse. Cymes few flowered; bracts lanceolate, 3--4 × ca. 1 mm, sparsely glandular pubescent along veins, base broadened, margin ciliate, apex obtuse. Pedicel 5--10 mm, densely glandular pubescent. Sepals 5, lanceolate, 4--5 × ca. 1.5 mm, glandular pubescent abaxially, base broadened, margin narrowly membranous, apex acute. Petals 5, white, obovate, 8--10 mm, apex weakly toothed. Stamens 10, longer than sepals; anthers yellowish. Ovary ovoid, ca. 3 mm. Styles 2, linear, ca. 3.5 mm. Fl. Jul--Aug.
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