Herbs, perennial, 2–6 dm. Rhizomes long creeping. Culms erect, slightly compressed, never rooting at nodes. Leaves: basal several, cauline 1–3; auricles absent, or essentially so; blade flat, 0.5–3 dm × 1.5–4 mm. Inflorescences glomerules 1–5, each with (8–) 10–30 flowers, congested to open, 2–6 cm; primary bract shorter than inflorescence. Flowers: tepals dark-brown with green midstripe, lanceolate, 4–6 mm, margins scarious, occasionally papillose; inner series slightly shorter; stamens 6, filaments 1–1.3 mm, anthers 1–1.5 mm; style 0.6 mm. Capsules tan or darker, 3-locular, obovoid, 3–5 mm, shorter than perianth. Seeds ovoid, body 0.6–0.8 mm, tails 0.2–0.4 mm.

Phenology: Flowering and fruiting summer.
Habitat: Moist to wet meadows in montane or subalpine areas
Elevation: 540–3000 m

Distribution

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Alta., B.C., Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.