Herbs. Stem simple, ca. 10 cm. Leaves in 2 pairs, decussate but appearing 4-verticillate; pseudopetiolate or subsessile; leaf blade orbicular to ovate-orbicular, ca. 40 × 40 mm in larger pair, base abruptly narrowed, apex rounded to obtuse. Cyme corymbiform; peduncle 1.5-3 cm. Flowers unequally 5-merous; pedicel 3-5 mm. Sepals subquadrangular, ca. 0.5 mm, apex obtuse. Petals white, oblong-lanceolate, 3-4 × 1-1.2 mm. Stamens 10, ca. 3 mm. Nectar scales oblong, ca. 0.8 mm. Carpels erect, oblong-ellipsoid, 3-4 mm, glabrous, base connate for ca. 1 mm. Follicles few seeded. Fl. Jul-Oct.