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Montana Field Guide

Montana Field Guides

Hayden's Sedge - Carex haydeniana

Native Species

Global Rank: G5?
State Rank: S4S5
C-value: 6


Agency Status
USFWS:
USFS:
BLM:


 

External Links






 
General Description
Densely caespitose. Stems erect, 8–25 cm. Leaves basal and lower-cauline; blades 1–3 mm wide. Inflorescence of 4 to 7 sessile spikes, densely clustered into a globose to ovoid head; lowest bract inconspicuous. Spikes 6–10 mm long, all similar; female flowers above male. Perigynia ascending, brown, green-edged, ovate, flattened, serrulate, wing-margined, 4.5–6 × 2–3 mm, the beak, 1.5–2.5 mm long, serrulate below, entire above; stigmas 2. Female scales brown sometimes with a pale midstripe, exposing the tip of the perigynia. Achene 2-sided, much smaller than the perigynium (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
BC, AB south to CA, UT and CO (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 17

(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, often stony soil of meadows, turf, often where snow lies late; subalpine, alpine (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?
    • Aho, Ken Andrew. 2006. Alpine and Cliff Ecosystems in the North-Central Rocky Mountains. Ph.D. Dissertation. Bozeman, Montana: Montana State University. 343 p.
    • Culver, D.R. 1994. Floristic analysis of the Centennial Region, Montana. M.Sc. Thesis. Montana State University, Bozeman. 199 pp.
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Citation for data on this website:
Hayden's Sedge — Carex haydeniana.  Montana Field Guide.  .  Retrieved on , from