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Montana Field Guide

Montana Field Guides

Hayden's Sedge - Carex haydeniana


Global Rank: G5?
State Rank: S4S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 6

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 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 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 13

(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 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Hayden's Sedge — Carex haydeniana.  Montana Field Guide.  .  Retrieved on , from