Specimen Information

Cyperus difformis
(smallflower umbrella sedge)
Plants
Exotic
Collection Info
Point Map
Species Profile
Animated Map

Specimen ID1634537
GroupPlants
GenusCyperus
Speciesdifformis
Common Namesmallflower umbrella sedge
StateNY
CountyGreene
LocalityMiddle Ground Island in the Hudson River
Mapping AccuracyAccurate
HUC8 NameMiddle Hudson
HUC8 Number02020006
HUC10 NameSaw Kill-Hudson River
HUC10 Number0202000611
HUC12 NameMurderers Creek-Hudson River
HUC12 Number020200061101
Map
Collection Day5
Collection Month9
Collection Year2005
Year AccuracyActual
Potential Pathwaydispersed
Statusestablished
Reference 1
Ref. Number:28913
Author:Tucker, G. (director).
Date:2015
Title:Stover-Ebinger Herbarium (EIU)
Publisher:Eastern Illinois University
Reference 2
Ref. Number:28331
Author:SEINet Portal Network.
Date:2021
Title:Southwest Environmental Information Network
Publisher:Symbiota Software Project, Arizona State University
Record TypeSpecimen
Earliest Recordcounty
DisposalEIU
Museum Cat Number11247
VerifierGordon C. Tucker
Freshwater/MarineFreshwater

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The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/10/2025].

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