Herbs perennial. Roots conic, robust. Stems sparsely branched, 4--7 cm, villous, hairs shorter and sparser proximally. Proximal cauline leaves shortly petiolate; distal leaves sessile; leaf blade elliptic or obovate-elliptic, 4--14 × 2--6 mm, both surfaces sparsely villous, 3-veined, midvein raised, lateral veins impressed, apex acute. Cymes few flowered. Sepals 5, lanceolate or ovate-lanceolate, 5--6 × ca. 2 mm, villous abaxially, 3-veined, margin membranous. Petals 5, white, obovate or obovate-flabellate, 7--11 × 5--7 mm, apex irregularly toothed or lobed; teeth 0.2--0.8 mm. Stamens 10; filaments ca. 6 mm, those opposite sepals with a globose gland at base; anthers violet. Ovary ovoid, ca. 2 × 1.5 mm. Styles 2, ca. 3.5 mm, papillose. Fl. Jul--Aug.
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