Specimen Information

Carex disticha
Carex disticha
(tworank sedge)
Plants
Exotic

Specimen ID279717
GroupPlants
GenusCarex
Speciesdisticha
Common Nametworank sedge
CountryCanada
StateONT
LocalityBelleville
Mapping AccuracyApproximate
Map
+
Collection Year1866
Year AccuracyActual
Potential Pathwayreleased packing material | shipping solid ballast
Statusestablished
Reference 1
Ref. Number:703
Author:Mills, E.L., J.H. Leach, J.T. Carlton, and C.L. Secor
Date:1993
Title:Exotic species in the Great Lakes: a history of biotic crises and anthropogenic introductions
Journal:Journal of Great Lakes Research
Volume:19
Issue:1
Pages:1-54
Reference 2
Ref. Number:23886
Author:Fernald, M.L.
Date:1942
Title:Critical notes on Carex
Journal:Rhodora
Volume:44
Issue:525
Pages:281-284
Comments"The first North American records for C. disticha, a Eurasian sedge known from swamps, wet meadows and prairies, and fens, are from Belleville, Ontario, in 1866 (Fernald 1942, Catling et al. 1988). Although it was originally thought to be native at this site, Catling et al. (1988) noted that the population is probably non-indigenous. Since this early record, the plant has been recorded from several locations, including Iles de Boucherville near Montreal, Quebec, in 1927, 1929, and 1940 and at Collingwood in Simcoe County, Ontario, in 1972 (Catling et al. 1988, Fernald 1942)."
Record TypeLiterature
Earliest Recordstate
Freshwater/MarineFreshwater


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Citation information: U.S. Geological Survey. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [10/24/2021].

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