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Montana Field Guide

Montana Field Guides

Rock Sedge - Carex rupestris


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

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General Description
Rhizomatous. Stems erect, 2–15 cm, tufted. Leaves mainly basal; blades 1–3 mm wide, curled at the tip. Inflorescence a solitary bractless spike. Spike narrow, 1–2 cm long; male flowered portion usually 5–10 mm long; female flowers below, few. Perigynia narrowly ellipsoid, 2–3.5 mm long, green below, brown above, with a beak up to 0.5 mm long; stigmas 3. Female scales brown with hyaline margins, mostly concealing the perigynia. Achene 3-sided, nearly filling the perigynium (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 53

(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
Gravelly soil of grasslands, fellfields, turf, often on exposed slopes, ridges; valleys to alpine, 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:
Rock Sedge — Carex rupestris.  Montana Field Guide.  .  Retrieved on , from