Specimen Information

Trapa bispinosa var. iinumai
Trapa bispinosa var. iinumai
(water chestnut)
Plants
Exotic

Specimen ID1897428
GroupPlants
GenusTrapa
Speciesbispinosa
Varietyiinumai
Common Namewater chestnut
StateVA
CountyFairfax
LocalityLake Accotink
Mapping AccuracyAccurate
HUC8 NameMiddle Potomac-Anacostia-Occoquan
HUC8 Number02070010
HUC10 NamePohick Creek
HUC10 Number0207001004
HUC12 NameAccotink Creek
HUC12 Number020700100402
Map
Collection Day7
Collection Month8
Collection Year2025
Year AccuracyActual
CommentsThis site was monitored monthly from June through October 2025 by a contractor, Aqua Doc. Treated under NVSWCD's EIP grant annually, beginning in 2023. No Trapa found in late Aug., Sept. or Oct. 2025.
Record TypePersonal communication
VerifierScott Baron


Disclaimer:

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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/16/2026].

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