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Montana Field Guide

Montana Field Guides

Porcupine Sedge - Carex hystericina


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

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General Description
Short-rhizomatous. Stems erect, 20–80 cm, loosely tufted. Leaves basal and cauline; blades 3–8 mm wide. Inflorescence of 2 to 5 well-separated spikes; the lowest bract equal to or greater than the inflorescence. Spikes pedunculate, arching to ascending; the terminal male, linear, 1–3 cm long; the lower female, 1–4 cm long, cylindric. Perigynia ascending to reflexed, green to tan, narrowly ovate, veiny, glabrous, 4–6 mm long including a distinct beak, 2–2.5 mm long; stigmas 3. Female scales brown, awn-like, serrulate, narrower and shorter than the perigynia. Achene 3-sided, much smaller than the perigynium (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
BC to QC south to UT, NM, TX, AR and VA. (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 3

(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
Wet meadows, marshes, thickets, often around streams, springs; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Porcupine Sedge — Carex hystericina.  Montana Field Guide.  .  Retrieved on , from