Distribution

 

- range by political unit   - GBIF data

  - known populations

Description

Fruiting period	April to September (November).
Culm height	02 - 90cm.
Leaf	0.8 - 5.4 mm wide.
Terminal spike	androgynous to staminate
Lateral spike	androgynous to pistillate.
Perigynium	circular to subcircular.
Achene	trigonous in cross section.
Style	deciduous in cross section.

Habitat

Calcareous soils; limestone quarries, fens. 

Quick description

Bright green coloration, bracts usually greatly exceeding inflorescence.

Similar species

Carex flava

Author and publication information for name

Carex viridula Michaux, Fl. Bor.-Amer. 2: 170. 1803.

Conservation and Wetland Status

Threatened and Endangered Status

State	Status
Connecticut	Endangered
Illinois	Threatened
Pennsylvania	Endangered

Wetland Status

Obligate wetland, Facultative wetland +

Subspecies and varieties

Carex viridula subsp. brachyrrhyncha
(Celakovsk?) B. Schmid, Watsonia. 14: 317. 1983

Carex viridula Michaux subsp. viridula

Carex viridula Michaux subsp. oedocarpa
(Andersson) B. Schmid, Watsonia. 14: 316. 1983.

Vernacular name

Little green sedge

Section

Carex sect. Ceratocystis

Links

Carex Interactive Identification Key

Flora Of North America treatment

Burke Museum of Natural History Image Collection

Flora.cyberia

Cybersedge. Texas A&M University

Download Excel spreadsheet of GBIF data

References

Ball, P.W. and A.A. Reznicek. 2002. Carex
Pp. 254-572. Flora of North America, volume 23.
Oxford University Press, New York and Oxford.

USDA, ARS, National Genetic Resources Program.
Germplasm Resources Information Network -
(GRIN) [Online Database].
National Germplasm Resources
Laboratory, Beltsville, Maryland.
http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?9132
Accessed on 11 September 2006.

U.S. Department of Agriculture.
PLANTS Database.
http://plants.usda.gov/index.html
Accessed primarily in August 2006.

GBIF Data Portal  www.gbif.net
Biologiezentrum der Oberoesterreichischen Landesmuseen, 12 records;
Botanical Society of the British Isles, 10 records;
Bundesamt fur Naturschutz/Zentralstelle für Phytodiversitat Deutschland, 10 records;
Environment and Heritage Service, 10 records;
European Environment Agency, 04 records;
Oregon State University Herbarium, 28 records;
Real Jardín Botanico (Madrid), Vascular Plant Herbarium, 01 record;
Scottish Borders Biological Records Centre, 05 records.
The Swedish Museum of Natural History: Herbarium of Oskarshamn, 59 records;
The Swedish Museum of Natural History: Plants (GBIF-SE:Artdatabanken), 10 records;
University of Vienna, Institute for Botany: Herbarium WU, 01 record;
Utah State University: USU-UTC Specimen Database, 02 records;
WTU Herbarium vascular plant collection, 06 records;

Accessed on Sept 23 2006.

© T. M. Jones 2006

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