Specimen Information

Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
(European frogbit)
Plants
Exotic

Specimen ID1697524
GroupPlants
GenusHydrocharis
Speciesmorsus-ranae
Common NameEuropean frogbit
StateNJ
CountyMorris
LocalityRiver-left side of impounded portion of Black River in Black river County Park. Small population observed just upstream of dam in pocket of still water.
Mapping AccuracyAccurate
HUC8 NameRaritan
HUC8 Number02030105
HUC10 NameNorth Branch Raritan River
HUC10 Number0203010502
HUC12 NameUpper Lamington River
HUC12 Number020301050201
Map
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Collection Day4
Collection Month9
Collection Year2022
Year AccuracyActual
CommentsI've made several observations of frogbit in the black river and in a neighboring watershed in the past two years; this is the most recent record I have. Will submit other observations. This small impoundment was observed earlier in 2022 to have a larger population in the northeast corner. I will likely submit this as a separate record. I have pressed specimens for some of these populations, please do not hesitate to reach out to me if one of these is desired or if I can provide any additional info.
Record TypeNAS sighting report
Earliest Recordlocale
VerifierIan Pfingsten
Number Collected10
Photo
Hydrocharis morsus-ranae
Hydrocharis morsus-ranae


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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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [10/8/2024].

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