Herbs small. Roots slender, with numerous branches. Stems slender, 4--10 cm, villous in 2 lines, or brown glandular villous. Leaves aggregated at stem apex; leaf blade broadly linear or linear-lanceolate, 0.5--2 cm × to 2 mm, base connate into a sheath, margin sparsely hairy, apex mucronate. Flowers axillary. Pedicel 0.6--5 cm, glandular pubescent. Sepals 5, lanceolate, 5--10 × 1--1.5 mm, glabrous or glandular pubescent abaxially, base saccate after anthesis, margin broadly white membranous, apex acute, mucronate. Petals 5, white, obovate-orbicular, 5--10 mm, apex obtuse. Stamens 10, slightly shorter than petals; anthers yellow. Ovary subglobose, ca. 2 mm. Styles 2, subulate, 5--7 mm. Fl. Jun--Jul.