Plants 12–35 cm tall. Basal leaves sparsely ciliate or subglabrous, 2.5–4.0 mm wide; cauline leaves usually 1 or 2; upper cauline leaves 3.5–7.0 cm long, 2.0–3.0 mm wide. Lower bract usually 2.5–4.5 cm long, overtopping inflorescence. Inflorescence subcongested with some pedunculate clusters or with most clusters pedunculate; clusters 3–7, ellipsoid-ovoid or ovoid, 7–10-flowered. Peduncles straight, smooth, rarely with secondary branches, to 1.5–4.5 cm long. Bracteoles 1.5 mm long, subentire or ciliate. Tepals brown or dark brown, 2.4–2.8 mm long. Anthers 0.6–0.9 mm long, anther/filament length ratio 1.0–1.3; ovary 0.9 mm long; style 0.5–0.8 mm long; stigmas 1.2–1.5 mm long. Capsules obovoid to subglobular, equalling perianth or shorter; capsule segments 1.9–2.2 mm long. Seeds oblong-ovoid or ellipsoid, 1.0–1.1 mm long, 0.7 mm wide; appendages 0.3 mm long. 2n=36 [36AL] or 2n=24 [24AL], fide J.Kirschner, Thaiszia 2: 27(1992).