Luzula comosa var. laxa

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Common name: Wood rush group

LUCA BenLegler veg 2004.jpg

Abbreviation Code (Codon): LU spp


Luzula spp have a spikelike, pan-like, or umbellate inflorescence. Perianth is greenish to brown or purplish-brown, and often scarious. They are generally shiny, have 6 stamens, their caps are one celled, 3 seeded and are generally attached by cottony fibers, sometimes with a caruncle. They are a "grasslike" perennial herb that has closed leaves that are flat blades, fringed with small hairs. [1] One native western "woodrush" species found in the south Puget Sound glacial outwash prairies is Luzula comosa.

Bloom Period



Common. Meadows, open woodlands, coniferous forests [2]




Photo Gallery


Seed sample from: 2008

Average Measurement: 1.5 x 0.9 x 0.9

Measurement Range: L: 1.2 – 1.8, W: 0.8 – 1, D:0.8 – 1


Shape: Seeds have prominent white caruncle. Seed mostly round except for a slightly pointed tapering at hilum and opposite apex.

Color: Seed coat is white over a dark reddish brown seed body.

Surface: On one side of seed there is a cloudy white line that crosses from hilum to opposite apex. Seed is lustrous and marked with many fine longitudinal lines.

Latitudinal Cross Section: elliptical Luzula lat.png

Longitudinal Cross Section: elliptical Luzula long.png

  1. Hitchcock and Cronquist "Flora of the Pacific Northwest"
  2. Mon May 7 14:59:43 2012