Perennials 40–100 cm tall, hairy to sparsely hairy; rhizome ascending to ±erect, rarely ±creeping. Basal leaves usually up to 25 cm long, (5–) 8–13 (–20) mm wide; cauline leaves usually 3–6, with upper ones to 17–20 cm long and 13 mm wide; all leaves acute, with densely papillose-serrulate margin. Primary bracts long, leaf-like, herbaceous, often ±equalling their partial inflorescences (lower inflorescence branches often in axils of upper cauline leaves). Inflorescence a loosely branched drooping interrupted panicle constituting 1/3–1/2 of plant height, composed of long pedunculate interrupted partial panicles of numerous small, cylindrical clusters usually 5–8 (–15) × 3–4 (–5) mm. Bracteoles membranous, ovate, acuminate, c. 1 mm long, fimbriate-ciliate above. Tepals straw-brown to pale castaneous brown, (1.3–) 1.5–1.8 (–2.2) mm long, ±equal, ±glabrous, with a distinct membranous or paler margin. Stamens 3; anthers 0.3–0.5 mm long; filaments 0.5–0.7 mm long; style 0.2–0.4 mm long; stigmas 0.5–0.7 mm long. Capsule ±ovoid, ±trigonous, acute, straw-brown to brown; capsule segments 1.4–1.6 × 0.9–1.1 mm. Seeds ellipsoidal, distinctly dark apicate, 0.8–0.9 mm long, 0.5–0.6 mm wide; appendage whitish, 0.10–0.15 mm long, fibrillate.