Herbs tufted. Basal leaves 12--25, 30--80 cm including sheath 1--1.5 cm × 2--3.5 mm; leaf blade soft, veins 7--9, apex tapering. Cauline leaves usually 2 or 3. Flowering stem scapose, slender, terete, glabrescent proximally, villous toward inflorescence. Spikes simple, sometimes branched, woolly; bracts ovate, 2--7 × 0.7--1 cm, abaxially woolly, apex abruptly acuminate and subulate. Outer 2 perianth segments subovate, 8--10 mm, abaxially woolly, base with 2 strong veins, margin undulate, apex acute; inner 2 segments smaller than outer 2, spatulate, membranous, veins 3, base adnate to filament for 1--2 mm, apex acute. Stamen 6--9 mm, glabrous; filament flattened; anther subglobose. Ovary 6--7 mm, densely long woolly. Style 3--4 mm, glabrous; stigma dark reddish, capitate, 0.7--0.9 mm, long papillose. Fl. Jun--Jul, fr. Sep--Oct.
Leaves linear, long-acuminate, to 60 cm long, 1.5 cm wide. Scapes terete, leafy, to 120 cm long. Spikes to 50 cm long, usually densely white-woolly; bracteoles ovate-acuminate, reflexed during anthesis, to 30 mm long. Outer tepals 10–15 mm long, c. 10 mm wide; inner tepals c. 8 mm long, 2–3 mm wide. Stamen to 9 mm long; anther c. 1.5 mm diam. Ovary 3–4 mm long; style 3–5 mm long. Capsule c. 10 mm long, ± hairy. Seeds c. 1 mm long, dark reddish brown.