Carex viridula - Michx.
Little Green Sedge
Other English Common Names: Greenish Sedge, Hairy Sedge
Other Common Names: little green sedge
Synonym(s): Carex oederi var. viridula (Michx.) Kukenthal
Taxonomic Status: Accepted
Related ITIS Name(s): Carex viridula Michx. (TSN 39868)
French Common Names: carex verdātre
Unique Identifier: ELEMENT_GLOBAL.2.156054
Element Code: PMCYP03EM0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Sedge Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Monocotyledoneae Cyperales Cyperaceae Carex
Check this box to expand all report sections:
Concept Reference
Help
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 viridula
Conservation Status
Help

NatureServe Status

Global Status: G5
Global Status Last Reviewed: 16May2016
Global Status Last Changed: 22Oct2000
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G5 - Secure
Nation: United States
National Status: N4N5
Nation: Canada
National Status: N5 (22Oct2000)

U.S. & Canada State/Province Status
United States Alaska (SNR), California (SNR), Colorado (S1), Connecticut (S1), District of Columbia (SNR), Idaho (SNR), Illinois (S1), Indiana (SNR), Maine (SNR), Massachusetts (SNR), Michigan (SNR), Minnesota (SNR), Montana (S4), Nevada (SNR), New Hampshire (SNR), New Jersey (SNR), New Mexico (SNR), New York (SNR), North Dakota (SNR), Ohio (S2), Oregon (SNR), Pennsylvania (S1), Rhode Island (SNR), South Dakota (S1), Utah (S2), Vermont (SNR), Washington (SNR), Wisconsin (SNR), Wyoming (S1S2)
Canada Alberta (S3S4), British Columbia (SNR), Labrador (SNR), Manitoba (S4?), New Brunswick (S4), Newfoundland Island (SNR), Northwest Territories (SNR), Nova Scotia (S4), Nunavut (S2), Ontario (S5), Prince Edward Island (S3S4), Quebec (S4S5), Saskatchewan (S5), Yukon Territory (S3)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Known from Canada and northern and western United States; Wyoming, South Dakota, Illinois, Pennsylvania and Colorado (Gunnison, Jackson, La Plata, Park, San Juan and Grand counties).

Overall Threat Impact Comments: Maintenance of the hydrology of the occupied sites is critical.

Other NatureServe Conservation Status Information

Distribution
Help
Global Range: Known from Canada and northern and western United States; Wyoming, South Dakota, Illinois, Pennsylvania and Colorado (Gunnison, Jackson, La Plata, Park, San Juan and Grand counties).

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

U.S. & Canada State/Province Distribution
United States AK, CA, CO, CT, DC, ID, IL, IN, MA, ME, MI, MN, MT, ND, NH, NJ, NM, NV, NY, OH, OR, PA, RI, SD, UT, VTnative and exotic, WA, WI, WY
Canada AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
CA Del Norte (06015)*, Humboldt (06023), Mendocino (06045), Tuolumne (06109)*
CO Grand (08049), Gunnison (08051), Jackson (08057)*, La Plata (08067), Park (08093), Routt (08107)*, San Juan (08111)
CT Litchfield (09005), New Haven (09009)*
IL Cook (17031), DuPage (17043), Kankakee (17091)*, Lake (17097), Mchenry (17111)*, Will (17197)
MA Berkshire (25003), Essex (25009), Worcester (25027)
NJ Morris (34027)*, Sussex (34037), Warren (34041)
OH Champaign (39021), Clark (39023), Erie (39043), Lucas (39095), Ottawa (39123), Sandusky (39143)*, Seneca (39147), Summit (39153)
PA Erie (42049)
SD McPherson (46089), Pennington (46103)*
WY Teton (56039)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
01 Chicopee (01080204)+, Quinnipiac (01100004)+*, Housatonic (01100005)+
02 Rondout (02020007)+*, Middle Delaware-Mongaup-Brodhead (02040104)+, Middle Delaware-Musconetcong (02040105)+
04 Little Calumet-Galien (04040001)+, Pike-Root (04040002)+, Blanchard (04100008)+, Lower Maumee (04100009)+, Cedar-Portage (04100010)+, Sandusky (04100011)+, Chautauqua-Conneaut (04120101)+, Lake Erie (04120200)+
05 Tuscarawas (05040001)+, Upper Great Miami (05080001)+
07 Kankakee (07120001)+*, Iroquois (07120002)+*, Chicago (07120003)+, Des Plaines (07120004)+, Upper Fox (07120006)+, Lower Fox (07120007)+*
10 Rapid (10120110)+*, Elm (10160004)+, North Platte Headwaters (10180001)+*, South Platte Headwaters (10190001)+
14 Blue (14010002)+, East-Taylor (14020001)+, Upper Yampa (14050001)+*, Animas (14080104)+
17 Snake headwaters (17040101)+
18 Smith (18010101)+*, Mad-Redwood (18010102)+, Big-Navarro-Garcia (18010108)+, Upper Tuolumne (18040009)+*
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
Help
Basic Description: Green sedge forms small bunches on wet stream banks and the edges of ponds. Its light yellow-green spikes are subtended by a long, slender leaf-like bract. The pistillate scales are shorter and narrower than the perigynium.

General Description: Green sedge forms small bunches. Its light yellow-green spikes are subtended by a long, slender leaf-like bract. The pistillate scales are shorter and narrower than the perigynium.
Technical Description: From CNHP Wetland Guide 2012: Growth Habit: cespitose Culms: 0.2-4 dm tall.
Leaves:Blades: 1-3.1 mm wide Sheaths:
Bracts: lowest bract diverging at a right angle or more from the culm. This bract usually lacks a sheath.
Spikes: Lateral spikes 1-8, female or androgynous, 0.4-1.4 cm long, 3-11 mm wide, crowded or sometimes the lowest remote. Terminal spike male or androgynous, sessile or pedunculate, 0.8-2.5 cm long, 1-3.3 mm wide.
Pistillate Scales: shorter than perigynia
Perigynia: widely spreading, yellowish green to green, 2.2-3.3 mm long, 0.8-1.6 mm wide. Beaks: 0.3-1.3 mmlong, straight or slightly bent toward dorsal side. Stigmas: 3
(from Wilson et al. 2008)


Diagnostic Characteristics: From CNHP Wetland Guide 2012: Main Characteristics:
Spikes crowded
Lowest inflorescence bract widely spreading
Perigynia light green with slightly bidentate beak, strongly spreading
Cespitose


Economic Attributes Not yet assessed
Help
Management Summary Not yet assessed
Help
Population/Occurrence Delineation Not yet assessed
Help
Population/Occurrence Viability
Help
U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
Help
Authors/Contributors
Help
Element Ecology & Life History Edition Date: 12May2010
Element Ecology & Life History Author(s): Parker, J. (2010).

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
  • Bailey, L.H. 1885. Notes on Carex XI. Studies of the Types of Various Species of the Genus Carex. Memoirs of the Torrey Botanical Club. 1:1-85.

  • Bright, J. 1925-1930. The Genus Carex in Pennsylvania. Trillia 9:1-33.

  • 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. Charles Scribner's Sons, New York. B13BRI01PAUS.

  • Britton, N. L. and A. Brown. 1913. An Illustrated Flora of the Northern United States and Canada. 3 vol. Dover Publications, Inc., N. Y. 2052 pp.

  • Fernald, M. L. 1950. Gray's manual of botany. 8th edition. Corrected printing (1970). D. Van Nostrand Company, New York. 1632 pp.

  • Fernald, M.L. 1906d. Some new or little known Cyperaceae of Eastern North America. Rhodora 8(94):200-202.

  • Fernald, M.L. 1949. Gray's Manual of Botany, Eighth edition. American Book Co. New York. B49FER01PAUS

  • Fernald, M.L. 1950 Gray's Manual of Botany, 8th ed. American Book Company, New York. 1632 pp.

  • Gleason, H.A. & Cronquist, A. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Edition. The New York Botanical Garden. Bronx, NY 10458. U.S.A. B91GLE01PAUS.

  • Gleason, H.A., and A. Cronquist. 1963. Manual of vascular plants of northeastern United States and adjacent Canada. D. Van Nostrand Company, New York, NY. 810 pp.

  • Gleason, H.A., and A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. New York Botanical Garden, Bronx, New York. 910 pp.

  • Hermann, F. J. 1941. The genus Carex in Michigan. American Midland Naturalist 25(1):1-72.

  • Hermann, F. J. 1970. Manual of the Carices of the Rocky Mountains and Colorado Basin. U.S.D.A. Forest Service Agriculture Handbook No. 374.

  • Hermann, F.J. 1941. The Genus Carex in Michigan in American Midland Naturalist 25 (1): 1-72. A41HER01PAUS.

  • 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.

  • Kettler, S. M., N. D. Lederer, D. Bacher, and S. Spackman. 1993. Final Report: Pike and San Isabel National Forests and Comanche and Cimarron National Grasslands, Plants of Special Concern. Colorado Natural Heritage Program, Fort Collins, CO.

  • Mackenzie, K.K. 1935. Cyperacea. North American Flora. A35MAC01PAUS.

  • Mackenzie, K.K. 1935. Cyperaceae. In: N. L. Britton et al., eds. North American Flora.

  • McCance, R.M. and Burns, J.F. eds 1984. Ohio Endangered and Threatened Vascular Plants: Abstracts of State-Listed Taxa, Division of Natural Areas and Preserves. Department of Natural Resources, Columbus, Ohio 635p. B84MCC01PAUS.

  • 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.

  • Michaux, A. 1803. Flora boreali- americana. V. 2:84.

  • Spackman, S., B. Jennings, J. Coles, C. Dawson, M. Minton, A. Kratz, and C. Spurrier. 1997. Colorado rare plant field guide. Prepared for Bureau of Land Management, U.S. Forest Service and U.S. Fish and Wildlife Service by Colorado Natural Heritage Program.

  • USDA, NRCS. 2013. The PLANTS Database. National Plant Data Team, Greensboro, NC 27401-4901 USA.

  • Voss, E.G. 1972. Michigan Flora Part I. Kingsport Press, Bloomfield Hills, Mich. B72VOS01PAUS

  • 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 Univ. Michigan Herbarium. Ann Arbor. 488 pp.

  • Weber, W. A. and R. C. Wittmann. 2012. Colorado Flora, Eastern Slope, A Field Guide to the Vascular Plants, Fourth Edition. Boulder, Colorado. 555 pp.

  • Weber, W. A. and R. C. Wittmann. 2012. Colorado Flora, Western Slope, A Field Guide to the Vascular Plants, Fourth Edition. Boulder, Colorado. 532 pp.

  • Welsh, S.L., N.D. Atwood, L.C. Higgins and S. Goodrich. 1987. Utah Flora, Great Basin Naturalist Memoirs, No. 9. Brigham Young University, Provo, Utah.

  • Welsh, S.L., N.D. Atwood, L.C. Higgins, and S. Goodrich, eds. 1987. A Utah Flora. Great Basin Naturalist Memoir 9, Brigham Young University, Provo, Utah. 894 pp.

Use Guidelines & Citation

Use Guidelines and Citation

The Small Print: Trademark, Copyright, Citation Guidelines, Restrictions on Use, and Information Disclaimer.

Note: All species and ecological community data presented in NatureServe Explorer at http://explorer.natureserve.org were updated to be current with NatureServe's central databases as of November 2016.
Note: This report was printed on

Trademark Notice: "NatureServe", NatureServe Explorer, The NatureServe logo, and all other names of NatureServe programs referenced herein are trademarks of NatureServe. Any other product or company names mentioned herein are the trademarks of their respective owners.

Copyright Notice: Copyright © 2017 NatureServe, 4600 N. Fairfax Dr., 7th Floor, Arlington Virginia 22203, U.S.A. All Rights Reserved. Each document delivered from this server or web site may contain other proprietary notices and copyright information relating to that document. The following citation should be used in any published materials which reference the web site.

Citation for data on website including State Distribution, Watershed, and Reptile Range maps:
NatureServe. 2017. NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.1. NatureServe, Arlington, Virginia. Available http://explorer.natureserve.org. (Accessed:

Citation for Bird Range Maps of North America:
Ridgely, R.S., T.F. Allnutt, T. Brooks, D.K. McNicol, D.W. Mehlman, B.E. Young, and J.R. Zook. 2003. Digital Distribution Maps of the Birds of the Western Hemisphere, version 1.0. NatureServe, Arlington, Virginia, USA.

Acknowledgement Statement for Bird Range Maps of North America:
"Data provided by NatureServe in collaboration with Robert Ridgely, James Zook, The Nature Conservancy - Migratory Bird Program, Conservation International - CABS, World Wildlife Fund - US, and Environment Canada - WILDSPACE."

Citation for Mammal Range Maps of North America:
Patterson, B.D., G. Ceballos, W. Sechrest, M.F. Tognelli, T. Brooks, L. Luna, P. Ortega, I. Salazar, and B.E. Young. 2003. Digital Distribution Maps of the Mammals of the Western Hemisphere, version 1.0. NatureServe, Arlington, Virginia, USA.

Acknowledgement Statement for Mammal Range Maps of North America:
"Data provided by NatureServe in collaboration with Bruce Patterson, Wes Sechrest, Marcelo Tognelli, Gerardo Ceballos, The Nature Conservancy-Migratory Bird Program, Conservation International-CABS, World Wildlife Fund-US, and Environment Canada-WILDSPACE."

Citation for Amphibian Range Maps of the Western Hemisphere:
IUCN, Conservation International, and NatureServe. 2004. Global Amphibian Assessment. IUCN, Conservation International, and NatureServe, Washington, DC and Arlington, Virginia, USA.

Acknowledgement Statement for Amphibian Range Maps of the Western Hemisphere:
"Data developed as part of the Global Amphibian Assessment and provided by IUCN-World Conservation Union, Conservation International and NatureServe."

NOTE: Full metadata for the Bird Range Maps of North America is available at:
http://www.natureserve.org/library/birdDistributionmapsmetadatav1.pdf.

Full metadata for the Mammal Range Maps of North America is available at:
http://www.natureserve.org/library/mammalsDistributionmetadatav1.pdf.

Restrictions on Use: Permission to use, copy and distribute documents delivered from this server is hereby granted under the following conditions:
  1. The above copyright notice must appear in all copies;
  2. Any use of the documents available from this server must be for informational purposes only and in no instance for commercial purposes;
  3. Some data may be downloaded to files and altered in format for analytical purposes, however the data should still be referenced using the citation above;
  4. No graphics available from this server can be used, copied or distributed separate from the accompanying text. Any rights not expressly granted herein are reserved by NatureServe. Nothing contained herein shall be construed as conferring by implication, estoppel, or otherwise any license or right under any trademark of NatureServe. No trademark owned by NatureServe may be used in advertising or promotion pertaining to the distribution of documents delivered from this server without specific advance permission from NatureServe. Except as expressly provided above, nothing contained herein shall be construed as conferring any license or right under any NatureServe copyright.
Information Warranty Disclaimer: All documents and related graphics provided by this server and any other documents which are referenced by or linked to this server are provided "as is" without warranty as to the currentness, completeness, or accuracy of any specific data. NatureServe hereby disclaims all warranties and conditions with regard to any documents provided by this server or any other documents which are referenced by or linked to this server, including but not limited to all implied warranties and conditions of merchantibility, fitness for a particular purpose, and non-infringement. NatureServe makes no representations about the suitability of the information delivered from this server or any other documents that are referenced to or linked to this server. In no event shall NatureServe be liable for any special, indirect, incidental, consequential damages, or for damages of any kind arising out of or in connection with the use or performance of information contained in any documents provided by this server or in any other documents which are referenced by or linked to this server, under any theory of liability used. NatureServe may update or make changes to the documents provided by this server at any time without notice; however, NatureServe makes no commitment to update the information contained herein. Since the data in the central databases are continually being updated, it is advisable to refresh data retrieved at least once a year after its receipt. The data provided is for planning, assessment, and informational purposes. Site specific projects or activities should be reviewed for potential environmental impacts with appropriate regulatory agencies. If ground-disturbing activities are proposed on a site, the appropriate state natural heritage program(s) or conservation data center can be contacted for a site-specific review of the project area (see Visit Local Programs).

Feedback Request: NatureServe encourages users to let us know of any errors or significant omissions that you find in the data through (see Contact Us). Your comments will be very valuable in improving the overall quality of our databases for the benefit of all users.