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Montana Field Guide

Montana Field Guides

Awned Sedge - Carex atherodes

Native Species

Global Rank: G5
State Rank: S4
C-value: 5


Agency Status
USFWS:
USFS:
BLM:


 

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General Description
Rhizomes deep. Stems erect, 40–100 cm, tufted. Leaves: basal and cauline; blades 3–10 mm wide; sheaths pilose. Inflorescence of 4 to 10 well-separated spikes; the lowest bract equal to or greater than the inflorescence. Spikes ascending to erect; the uppermost 2 to 4 male; the lower female, 2–7 cm long, pedunculate, cylindric. Perigynia ascending, green to tan, lanceolate, veiny, glabrous, 7–10 mm long including an apically divided beak, 3–5 mm long; stigmas 3. Female scales brown, lanceolate, long-awned, narrower and as long as the perigynia. Achene 3-sided, smaller than the perigynium (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
Circumboreal south to CA, AZ, NM, MO and VA (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 82

(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
Moist to wet meadows, marshes, riparian forests, often around lakes, ponds where inundated early but eventually drying; plains, valleys (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
    • Sater, S. 2022. The insects of Sevenmile Creek, a pictorial guide to their diversity and ecology. Undergraduate Thesis. Helena, MT: Carroll College. 242 p.
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Citation for data on this website:
Awned Sedge — Carex atherodes.  Montana Field Guide.  .  Retrieved on , from