Perennials 15–80 cm tall; rhizome ascending, long, often with long ascending stolons. Basal leaves 5–25 cm long, 8–12 mm wide; cauline leaves usually 3–5 (–8), usually 6–8 cm long, 4–5 mm wide. All leaves usually densely ciliate, less often subglabrous, acute, with ±papillose-serrulate margins. Lower bract herbaceous, up to 6 cm long; next upper bract linear, brownish membranous, ciliate, c. 1 cm long. Inflorescence terminal, a loose nodding anthelately arranged panicle 5–20 × 3–10 cm; flowers borne singly. Bracteoles brownish-membranous, ±ovate, acute, 1.2–1.6 mm long, ciliate, inserted c. 0.1–0.2 mm below flower. Tepals subequal, glabrous, narrowly-lanceolate, acuminate, pale to dark brown, 1.7–2.4 mm long. Stamens 6; anthers 0.4–0.7 mm long, equalling or longer than filaments; filaments 0.3–0.5 mm long; style 0.1–0.2 mm long; stigmas 0.8–1.0 mm long. Capsule dark brown, shining, ovoid, acute, often equalling or exceeding perianth; capsule segments 1.5–1.7 × 1.0–1.3 mm. Seeds oblong-ellipsoidal, brown, 1.0–1.1 mm long, 0.6–0.7 mm wide; appendage indistinct, to c. 0.1 mm, fibrillate.