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Montana Field Guide

Montana Field Guides

Bebb's Sedge - Carex bebbii


Global Rank: G5
State Rank: S4

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

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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 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
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 7

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

References
  • Additional ReferencesLegend:   View Online Publication
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    • Bright, J. 1925-1930. The Genus Carex in Pennsylvania, Trillia 9:1-33. A25BRI01PAUS
    • Britton, N. L. and A. B. Brown. 1913. An Illustrated Flora of the Northern United States, Canada, and the British Possessions. 2nd Edition in 3 Volumes. New York, NY: Charles Scribner's Sons. B13BRI01PAUS.
    • Fernald, M. L. 1950. Gray's manual of botany. Eighth edition. A handbook of the flowering plants and ferns of the central and northeastern United States and Adjacent Canada. American Book Co., New York.
    • Gleason, H. A., and A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. New York Botanical Garden, Bronx, NY. 910 pp.
    • Gleason, H.A. 1952. New Britton & Brown. Illustrated Flora. Lancaster Press Inc. Lancaster, Pa. B52GLE01PAUS
    • Hermann, F.J. 1941. The Genus Carex in Michigan in American Midland Naturalist 25 (1): 1-72. A41HER01PAUS.
    • Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Mackenzie, K.K. 1931. Flora of North America. New York Botanical Gardens, New York, New York. A31MAC01PAUS.
    • McCance, R.M., Jr., and J.F. Burns, eds. 1984. Ohio endangered and threatened vascular plants: Abstracts of state-listed taxa. Division Natural Areas and Preserves, Ohio Dept. Natural Resources, Columbus. 635 pp.
    • Voss, E.G. 1972. Michigan Flora Part I. Kingsport Press, Bloomfield Hills, Mich. B72VOS01PAUS
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Citation for data on this website:
Bebb's Sedge — Carex bebbii.  Montana Field Guide.  .  Retrieved on , from