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Montana Field Guide

Montana Field Guides

Yellow Sedge - Carex flava


Global Rank: G5
State Rank: S4S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 7

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General Description
Caespitose. Stems erect, 10–60 cm. Leaves basal and cauline; blades 2–4 mm wide. Inflorescence of 3 to 6 ascending, separate spikes; the lowest bract longer than the inflorescence. Spikes: the uppermost male, 8–17 mm long; the lower female, 8–15 mm long, ellipsoid, short-pedunculate. Perigynia spreading to reflexed, green to yellow, ovoid, glabrous, 4–5 mm long with a distinct, gently curved beak 1.5–2.5 mm long; stigmas 3. Female scales lanceolate, coppery with a green midvein, smaller than the perigynia. Achene 3-sided, nearly filling the perigynium (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Circumboreal south to BC, ID, MT, IN and NY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 71

(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, often gravelly or peaty soil of meadows, lake shores streambanks, fens; 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:
Yellow Sedge — Carex flava.  Montana Field Guide.  .  Retrieved on , from