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Montana Field Guide

Montana Field Guides

Russet Sedge - Carex saxatilis


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 8

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General Description
Rhizomatous. Stems erect, 20–50 cm. Leaves basal and cauline; blades 1–4 mm wide. Inflorescence of 2 to 4 well-separated spikes; the lowest bract greater than the inflorescence. Spikes unisexual; the upper 1 or 2 male, linear, 8–25 mm long; the lower female, ascending to arching, 1–2 cm long, pedunculate, short-cylindric. Perigynia ascending, tan to brown, elliptic, glabrous, 3–4.5 mm long with a distinct beak up to 0.5 mm long; stigmas 2 or rarely 3. Female scales ovate, brown to purplish with a pale midvein and margins, shorter than the perigynia. Achene 2- or rarely 3-sided, smaller than the perigynium (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Montana plants are variety major Olney.

Range Comments
Circumboreal south to WA, UT and CO (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 3

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Wet, gravelly or shallow soil on margins of lakes, streams; valleys to subalpine, more common higher (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Russet Sedge — Carex saxatilis.  Montana Field Guide.  .  Retrieved on , from