n = 36

Habit of radicate group. Stems slender, erect, 10-50 cm tall, branching from the base, terete. Leaves alternate, often dark green, usually linear-oblanceolate to linear, 15—20 mm long, subentire, with scattered hairs on margins and lamina. Callus teeth 4-5 on each margin. Bracts linear, 4—20 × 2 mm. Flowers pure white, (9—) 15— 25 mm diam., 6—13 mm long, on slender pedicels 5—10 cm long. Corolla rotate, almost tubeless, with long lobes and shallow, saucer-shaped tube 2 × 5 mm. Corolla lobes 8 × 5 mm to 11 × 6 mm, elliptic to oblanceolate, acute, separated at base. Style strongly constricted below stigma lobes, white. Calyx glabrous, lobes 2 × 0.7 mm to 3 × 1 mm, narrowtriangular, erect. Capsule glabrous, 7 × 3 to 10 × 4 mm, ellipsoid to obconic. Bud at anther dehiscence slender, pointed. Self-fertile. Seeds 0.5 mm long. FL Nov—Apr, FT Dec—Apr.