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Montana Field Guide

Montana Field Guides

Northern Clustered Sedge - Carex arcta


Global Rank: G5
State Rank: S4

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

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General Description
Caespitose. Stems erect, 15–50 cm. Leaves basal and lower-cauline; blades 1–4 mm wide. Inflorescence of 7 to 15 sessile spikes in a tight conical cluster; lowest bracts short. Spikes 5–10 mm long, all similar; female flowers above; male below. Perigynia ascending, green, lanceolate, 2–3 mm long, including the broad, serrulate beak, ca. 1 mm long; stigmas 2. Female scales tan with hyaline margins and a green midvein, shorter and narrower than the perigynia. Achene 2-sided, filling the perigynium (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
YT to QC south to CA, ID, MT, MI and NY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 6

(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
Wetlands along streams, ponds, lakes, often with Carex athrostachya; valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Northern Clustered Sedge — Carex arcta.  Montana Field Guide.  .  Retrieved on , from