Rhizomatous. Stems erect, 10–50 cm, somewhat tufted. Leaves basal and lower-cauline; blades 1–3 mm wide. Inflorescence of 2 to 6 sessile, remote to overlapping spikes, bractless. Spikes 2–5 mm long, all similar; few male flowers above the female. Perigynia 1 to 3 per spike, spreading to ascending, green to tan, red-veined, glabrous, elliptic, 2–3 mm long with an obscure beak; stigmas 2. Female scales ovate, hyaline with a tan midvein, shorter and narrower than the perigynia. Achene 2-sided, filling the perigynium (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Wet, organic soil, often beneath shrubs, in swamps, fens, wet coniferous forest; valleys, montane (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).