Wahlenb.
Identity
Unique IDELEMENT_GLOBAL.2.131510
Element CodePMCYP030V0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
IUCNLeast concern
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderCyperales
FamilyCyperaceae
GenusCarex
Other Common NamesAquatic Sedge (EN) Carex aquatique (FR) water sedge (EN)
Concept ReferenceKartesz, 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.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-07-10
Change Date1984-02-24
Edition Date2024-07-10
Edition AuthorsSoteropoulos (2024)
Threat ImpactUnknown
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Number of Occurrences> 300
Rank ReasonsCarex aquatilis is a wide-ranging, circumboreal, perennial graminoid in a variety of wetland habitats occurring in North America from Alaska, United States and Canada south to California east to New Mexico, Kansas east to Virginia and North Carolina and Eurasia. It is a variable species with four extensively intergrading varieties in North America which hybridize with each other and other species where they co-occur. Threats include invasive species, agriculture, hydrological alteration, and likely other threats in some places. Little is known about trends, but with a large range extent and large number of occurrences, this species is considered secure.
Range Extent CommentsCarex aquatilis is circumboreal, occurring in North America from Alaska, United States and Canada south to California east to New Mexico, Kansas east to Virginia and North Carolina and Eurasia (FNA 2002). It is a variable species with four extensively intergrading varieties... recognized in North America" (FNA 2002).
Occurrences CommentsBy applying a 1 km separation distance to herbarium specimens and photo-based observations documented between 2004 and 2024, it is estimated that there are over thousands of occurrences rangewide (GBIF 2024, iNaturalist 2024, SEINet 2024).
Threat Impact CommentsAlthough threats are not widely documented, this species is threatened by invasive species, agriculture, hydrological alteration, and likely other threats in some places (NatureServe 2024). There is insufficient data, including anecdotal accounts, to understand the scope and severity of threats for this taxon.