Carex sychnocephala - Carey
Many-headed Sedge
Taxonomic Status: Accepted
Related ITIS Name(s): Carex sychnocephala Carey (TSN 39833)
French Common Names: carex compact
Unique Identifier: ELEMENT_GLOBAL.2.146760
Element Code: PMCYP03DE0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Sedge Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Monocotyledoneae Cyperales Cyperaceae Carex
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Concept Reference
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Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Carex sychnocephala
Conservation Status
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NatureServe Status

Global Status: G5
Global Status Last Reviewed: 31Aug2016
Global Status Last Changed: 31Aug2016
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G5 - Secure
Nation: United States
National Status: NNR
Nation: Canada
National Status: N5 (31Aug2016)

U.S. & Canada State/Province Status
United States Alaska (S1), Colorado (S1), Idaho (S1), Iowa (S3), Michigan (S1S2), Minnesota (SNR), Missouri (S1), Montana (S1S2), New York (SH), North Dakota (SNR), Oregon (SNR), South Dakota (SNR), Washington (S2), Wisconsin (S2)
Canada Alberta (S3), British Columbia (S3), Manitoba (S4?), Northwest Territories (SNR), Ontario (S4), Quebec (S1), Saskatchewan (S4), Yukon Territory (S2)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Carex sychnocephala occurs from Alaska, the Northwest Territories, and Quebec south to New York, Michigan, Wisconsin, Missouri, Colorado, Montana, and Washington. Sparse.

Number of Occurrences: > 300

Number of Occurrences with Good Viability/Integrity: Very many (>125)

Environmental Specificity: Moderate. Generalist or community with some key requirements scarce.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Carex sychnocephala occurs from Alaska, the Northwest Territories, and Quebec south to New York, Michigan, Wisconsin, Missouri, Colorado, Montana, and Washington. Sparse.

U.S. States and Canadian Provinces
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AK, CO, IA, ID, MI, MN, MO, MT, ND, NY, OR, SD, WA, WI
Canada AB, BC, MB, NT, ON, QC, SK, YT

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
AK Valdez-Cordova (CA) (02261), Yukon-Koyukuk (CA) (02290)
CO Boulder (08013)*
MO Platte (29165)
MT Cascade (30013)*, Glacier (30035), Lake (30047)*, Lincoln (30053)*, Sheridan (30091)
NY Jefferson (36045)*, St. Lawrence (36089)*
WA Ferry (53019), Lincoln (53043), Okanogan (53047), Pend Oreille (53051)
WI Door (55029), Jefferson (55055)*, Manitowoc (55071), Oconto (55083), Portage (55097), Sheboygan (55117), Walworth (55127), Waukesha (55133), Waushara (55137)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
04 Manitowoc-Sheboygan (04030101)+, Door-Kewaunee (04030102)+, Duck-Pensaukee (04030103)+, Oconto (04030104)+, Upper Fox (04030201)+, Wolf (04030202)+, Milwaukee (04040003)+, Salmon-Sandy (04140102)+*, Upper St. Lawrence (04150301)+*
07 Castle Rock (07070003)+, Crawfish (07090002)+, Upper Fox (07120006)+
09 St. Marys (09040001)+
10 Upper Missouri-Dearborn (10030102)+*, Sun (10030104)+*, Cut Bank (10030202)+, Brush Lake closed basin (10060007)+, St. Vrain (10190005)+*, Independence-Sugar (10240011)+
17 Upper Kootenai (17010101)+*, Flathead Lake (17010208)+*, Pend Oreille (17010216)+, Kettle (17020002)+, Chief Joseph (17020005)+, Okanogan (17020006)+, Similkameen (17020007)+, Methow (17020008)+, Palouse (17060108)+
19 Upper Copper River (19020101)+, Porcupine Flats (19040205)+*, Christian River (19040303)+, Birch-Beaver Creeks (19040402)+, Yukon Flats (19040403)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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General Description: Many-headed Sedge forms clumps without rhizomes and has slender stems that are 5-50 cm high. The lowest leaves are reduced to scales; the upper are flat and 1-4 mm wide. Flowers occur in 4-15 globose spikes clustered together at the top of the stem. The lower spikes are subtended by long, leaf-like bracts that greatly surpass the inflorescence. Inconspicuous male flowers (recognized by the old stamens) occur at the base of each spike. Pale green or tan perigynia are 5-7 mm long and ca. 1 mm wide and narrowly lance-shaped with a long beak and serrated margins. The pale, thin, lance-shaped scales have a green midvein and are ca. 1/2 the length of the perigynia that they subtend. There are 2 styles, and the achenes are 2-sided.
Diagnostic Characteristics: The combination of long, leaf-like lower bracts, and long, narrow perigynia is distinctive.
                From CNHP Wetland Guide 2012:  Main Characteristics:
·
Growth Habit: cespitose. Culms:  .08-4 dm tall.
Leaves:  12 cm long, 1.2-3 mm wide.   Blades:   Sheaths: fronts white-hyaline.
Bracts:
Spikes: 1.6-3 cm long, 7-15 mm wide, spikes crowded in a dense greenish to golden head, the lower inflorescence bracts leaf -like and usually at least 5 times as long as the inflorescence. Spikes gynecandrous.
Pistillate Scales:  white or gold hyaline, 3.5-4.5 mm long, shorter or longer than the perigynia.
Perigynia:  green, straw-colored, or light brown, narrowly lanceolate, 5.5-7.3 mm long, 0.7-1.2 mm wide, with wing 0.1 mm wide on the perigynium body.  Nerves: 3-12 dorsal veins Beaks:  winged and ciliate-serrulate to near tip. Stigmas: 2
(from Wilson et al. 2008)

Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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Element Ecology & Life History Edition Date: 10Oct1994
Element Ecology & Life History Author(s): JM

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
Help
  • Bouchard, A., D. Barabé, M. Dumais et S. Hay 1983. Les plantes vasculaires rares du Québec. Syllogeus no 48. Musées nationaux du Canada. Ottawa. 75 p.

  • British Columbia Conservation Data Centre. Botany Program. 2000. Database containing records of rare plant collections and observations in the province of British Columbia.

  • Douglas, G.W., D. Meidinger, and J. Penny. 2002. Rare Native Vascular Plants of British Columbia, 2nd ed. B.C. Conserv. Data Centre, Terrestrial Inf. Branch, Victoria. 358pp.

  • Douglas, G.W., D. Meidinger, and J. Pojar, eds. 2001. Illustrated Flora of British Columbia, Vol. 6, Monocotyledons (Acoraceae through Najadaceae). B.C. Minist. Environ., Lands and Parks, and B.C. Minist. For., Victoria, BC. 361pp.

  • Douglas, G.W., G.B. Straley, and D. Meidinger, eds. 1998. Rare Native Vascular Plants of British Columbia. Conserv. Data Centre, Resour. Inventory Branch, B.C. Minist. Environ., Lands and Parks, Victoria, and B.C. Minist. For., Victoria.

  • Fernald, M.L. 1950. Gray's manual of botany. 8th edition. D. Van Nostrand, New York. 1632 pp.

  • Flora of North America (FNA) Editorial Committee. 2002. Flora of North America, Volume 24, draft species accounts for Cyperaceae. Unpublished draft species accounts.

  • Flora of North America Editorial Committee. 2002b. Flora of North America north of Mexico. Vol. 23. Magnoliophyta: Commelinidae (in part): Cyperaceae. Oxford Univ. Press, New York. xxiv + 608 pp.

  • Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden, Bronx, New York. 910 pp.

  • Holmgren, Noel. 1998. The Illustrated Companion to Gleason and Cronquist's Manual. Illustrations of the Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden, Bronx, New York.

  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • Lesica, P. and J. S. Shelly. 1988b. The vegetation and flora of glaciated prairie potholes on the Blackfeet Indian Reservation, Montana: Progress report. Unpublished report to the Montana Nature Conservancy, Helena, MT. 19 pp.

  • Mastrogiuseppe, J. 2002. Carex Linnaeus sect. Cyperoideae G. Don. Pages 331-332 in Flora of North America Editorial Committee (editors), Flora of North America, north of Mexico, Volume 23, Magnoliophyta: Commelinidae (in part): Cyperaceae. Oxford University Press, New York, New York, USA. 608pp + xxiv.

  • New York Natural Heritage Program. 2010. Biotics database. New York Natural Heritage Program. New York State Department of Environmental Conservation. Albany, NY.

  • Oldham, M.J., and W.J. Crins. 1998. Atlas of the Vascular Flora of southern Ontario. Draft 2. Natural Heritage Information Centre, Ontario Ministry of Natural Resources, Peterborough, Ontario. 378 pp.

  • Porsild, A.E. et W.J. Cody. 1980. Vascular plants of Continental Northwest Territories. Musées nationaux du Canada. 667 p.

  • Raymond, M. 1951. Sedges as Material for Phytogeographical Studies. Mémoires du Jardin Botanique de Montréal. 20 2-23

  • Reschke, Carol. 1990. Ecological communities of New York State. New York Natural Heritage Program, New York State Department of Environmental Conservation. Latham, NY. 96 pp. plus xi.

  • Rouleau, E. 1945. Bibliographie des articles concernant la botanique canadienne, parus dans "Rhodora", volume 1, 1899, à volume 45, 1943, précédée d'un index alphabétique de tous les noms botaniques nouveaux, proposés dans cette revue. Annales de l'ACFAS

  • Rousseau, C. 1974. Géographie floristique du Québec-Labrador : Distribution des principales espèces vasculaires. Presses de l'Université Laval, Québec. 798 p.

  • Voss, E.G. 1972. Michigan Flora, Part I. Gymnosperms and Monocots. Cranbrook Institute of Science Bulletin 55 and the University of Michigan Herbarium. Ann Arbor. 488 pp.

  • 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 and University of Michigan Herbarium, Ann Arbor, Michigan. 488 pp.

  • Weldy, T. and D. Werier. 2010. New York flora atlas. [S.M. Landry, K.N. Campbell, and L.D. Mabe (original application development), Florida Center for Community Design and Research http://www.fccdr.usf.edu/. University of South Florida http://www.usf.edu/]. New York Flora Association http://wwws.nyflora.org/, Albany, New York

  • Zaremba, Robert E. 1991. Corrections to phenology list of April 9, 1991.

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