Herbs perennial. Stems sparsely clustered, erect, slender, 2--5 cm, glabrous. Leaf blade elliptic, ovate, or lanceolate, 5--6 × 2--3 mm, margin thick, ciliate, rarely narrowly membranous, apex acute, cuspidate. Flower solitary, terminal. Pedicel 0.7--1.5 cm, glandular pubescent. Sepals 5, violet or green, lanceolate or orbicular, ca. 5 × 2 mm, midvein and margin nodose hairy, apex obtuse or acute. Petals 5, violet, obovate or broadly so, 8--9 mm, apex obtuse. Stamens shorter than petals; anthers violet. Ovary ovoid. Styles 3, linear. Fl. Jun--Jul.