Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Buxbaum's Sedge - Carex buxbaumii

Native Species

Global Rank: G5
State Rank: S4
C-value: 8

Agency Status


External Links

General Description
Rhizomatous. Stems erect, 25–80 cm. Leaves: basal bladeless; cauline blades 1–3 mm wide. Inflorescence of 2 to 5 short-pedunculate, erect, barely overlapping spikes; lowest bract ca. as long as the inflorescence. Spikes 1–2 cm long; uppermost bisexual with male flowers below; otherwise all female. Perigynia ascending to spreading, green, pappilose, elliptic, 3–4.5 mm long, beakless, somewhat inflated; stigmas 3. Female scales narrowly lanceolate, brown with a pale midvein, awned, as long but narrower than the perigynia. Achene 3-sided, smaller than the perigynium (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Diagnostic Characteristics
Uppermost spike (at least usually) both pistillate and staminate (the similar C. limosa spike is entirely staminate); strongly bicolored pistillate scales; spikes sessile or with short pedicel; glaucous foliage. Within Section Atratae: pistillate spikes mostly sessile or nearly so (C. atratiformis has the pistillate spikes on slender peduncles 1-4 cm); stems of the season aphyllopodic, not surrounded by dried sheaths of previous years (although these may be present on old stems), perigynia densely and conspicuously papillate (C. norvegica and C. parryana have stems of the season phyllopodic or somewhat aphyllopodic, surrounded by the dried sheaths of previous years, perigynia not notable papillate) (Gleason and Cronquist 1991).

Species Range
Montana Range Range Descriptions


Range Comments
Circumboreal south to UT, CO, AR and SC (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 95

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)


  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Correll, D.S., and H.B. Correll. 1972. Aquatic and wetland plants of southwestern United States. 2 volumes. Stanford Univ. Press, Stanford, California. 1777 pp.
    • Fernald, M.L. 1970. Gray's manual of botany. 8th ed. Van Nostrand Company, 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.
    • Hough, M.Y. 1983. New Jersey wild plants. Harmony Press, Harmony, NJ. 414 pp.
    • Lakela, Olga. 1965. A Flora of Northeastern Minnesota. University of Minnesota Press, Minneapolis, Minnesota. 541 pp.
    • Larson, G. E. 1993. Aquatic and wetland vascular plants of the northern Great Plains. USDA Forest Service General Technical Report RM-238. Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO. 681 pp.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
    • Naczi, R., and C. Bryson. 1990. Noteworthy records of Carex (Cyperaceae) from the southeastern United States. Bartonia 56: 49-58.
    • Radford, A.E., H.E. Ahles, and C.R. Bell. 1968. Manual of the vascular flora of the Carolinas. Univ. North Carolina Press, Chapel Hill, NC. 1183 pp.
    • Ridley, H.N. 1930. The dispersal of plants throughout the world. L. Reeve & Co., Ltd., Ashford, Kent, United Kingdom. 744 pp.
    • Steyermark, J. 1963. Flora of Missouri. University of Iowa Press, Ames.
    • Voss, E. G. 1972. Michigan flora: A guide to the identification and occurrence of the native and naturalized seed-plants of the state. Part I. Gymnosperms and Monocots. Cranbrook Institute of Science. 488 pp.
    • Weber, W.A. 1990. Colorado Flora: eastern slope. Univ. Press Colorado, Niwot. 396 pp.
  • Web Search Engines for Articles on "Buxbaum's Sedge"
Login Logout
Citation for data on this website:
Buxbaum's Sedge — Carex buxbaumii.  Montana Field Guide.  .  Retrieved on , from