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Montana Field Guide

Montana Field Guides

Bebb's Sedge - Carex bebbii

Native Species

Global Rank: G5
State Rank: S4
C-value: 7


Agency Status
USFWS:
USFS:
BLM:


 

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General Description
Caespitose. Stems erect, 20–70 cm. Leaves: basal blades absent; cauline blades 1–3 mm wide. Inflorescence of 4 to 10 sessile spikes, aggregated into an ovoid to elongate head. Spikes 4–9 mm long, all similar; female flowers above, male below; lowest bract inconspicuous. Perigynia erect, glabrous, green to tan, ovate, flattened, wing-margined, 3–4 × 1–2 mm, gradually tapering to the indistinct beak, 1–2 mm long, serrulate to the tip; stigmas 2. Female scales tan-hyaline, sometimes with a green midvein, shorter and narrower than the perigynia. Achene 2-sided, smaller than the perigynium (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Diagnostic Characteristics
Spikes densely aggregated; pistillate scales distinctly shorter than the perigynia; perigynia ovate, winged to the base, gradually tapering to the erect or ascending beak, conspicuously distended over the achene, brown at maturity, less than 4 mm long and 2 mm wide, two fifths to half as wide as long.

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
AK to NL south to OR, UT, CO, IA, IN, OH and NY (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 45

(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, streambanks, shores of lakes, ponds; valleys (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).


References
  •  Literature Cited Above
  •  Additional References
  •  Web Search Engines for Articles on "Bebb's Sedge"
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Citation for data on this website:
Bebb's Sedge — Carex bebbii.  Montana Field Guide.  .  Retrieved on , from