Distribution

  - range by political unit   - GBIF data

  - known populations

Description

Fruiting period	June to August.
Culm height	10-75 cm.
Leaf	1.6-5.8 mm wide.
Terminal spike	staminate.
Lateral spike	pistillate.
Perigynium	circular to subcircular in cross section; reflexed toward axis.
Achene	trigonous.
Style	deciduous.

Habitat

Fens, wet prairies, wet seepy areas.

Quick description

Perigynia usually reflexed downwards towards axis;
yellow coloration acheived at maturity.

Similar species

Carex viridula

Author and publication information for name

Carex flava Linnaeus, Sp. Pl. 2: 975. 1753.

Conservation and Wetland Status

Threatened and Endangered Status

State	Status
Indiana	Threatened
Pennsylvania	Threatened
Washington	Sensitive

Wetland Status

Facultative Wetland, Obligate Wetland

Synonym (s)

Carex flava var. fertilis Peck; C. flava var. gaspensis
Fernald; C. flava var. laxior (Kükenthal) Gleason;
C. laxior (Kükenthal) Mackenzie

Vernacular name

Little Yellow Sedge

Section

Carex sect. Ceratocystis

Links

Carex Interactive Identification Key

Flora Of North America treatment

University of California, Berkely. Calphotos

Burke Museum of Natural History

Botanischer Garten, Universität Tübingen

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?9059
Accessed on 23 September 2006.

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

GBIF Data Portal www.gbif.net
Biologiezentrum der Oberoesterreichischen Landesmuseen: Biologiezentrum Linz 10 records;
Botanical Societyof the British Isles, 12 records;
Bundesamt fur Naturschutz/Zentralstelle für Phytodiversität Deutschland, 10 records;
Environment and Heritage Service, 01 record;
European Environment Agency; EUNIS, 10 records;
Fachbereich Wald und Forstwirtschaft, 01 record;
GBIF-Spain: Jardín Botánico de Córdoba: Herbarium COA, 01 record;
Herbarium RNG, School of Plant Sciences, The University of Reading: Herbarium RNG, 03 records;
Icelandic Institute of Natural History Herbarium (ICEL) 02 records;
Icelandic Institute of Natural History, 10 records;
Icelandic Institute of Natural History, Akureyri Divison, 05 records;
Natural History Museum, University of Oslo: Vascular Plant Herbarium, Oslo, 10 records;
Real Jardín Botanico (Madrid), Vascular Plant Herbarium, 02 records;
Scottish Borders Biological Records Centre, 01 record;
The Swedish Museum of Natural History (NRM): Plants (GBIF-SE:Artdatabanken), 10 records;
The Swedish Museum of Natural History : Herbarium of Oskarshamn, 11 records;
University of Alaska Museum of the North Herbarium, 10 records;
Utah State University: USU-UTC Specimen Database 01 record.

Accessed on Sept 23 2006.

© T. M. Jones 2006

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