| Specimen ID | 1877973 |
| Group | Plants |
| Genus | Trapa |
| Species | bispinosa |
| Variety | iinumai |
| Common Name | water chestnut |
| State | VA |
| County | Fairfax |
| Locality | Fair Ridge Park, Meadow Field Drive |
| Mapping Accuracy | Accurate |
| HUC8 Name | Middle Potomac-Anacostia-Occoquan |
| HUC8 Number | 02070010 |
| HUC10 Name | Bull Run |
| HUC10 Number | 0207001007 |
| HUC12 Name | Cub Run |
| HUC12 Number | 020700100704 |
| Map | |
| Collection Day | 15 |
| Collection Month | 5 |
| Collection Year | 2025 |
| Year Accuracy | Actual |
| Status | established |
| Comments | Fair Ridge Park; Facility 1071DP - publicly maintained. Under active annual treatment for multiple years. Site ID FCPA0076. Reoccurring population treated early and often/controlled. First trapa sighting/report of season in Fairfax County publicly owned facility. Treatment at time of observation. Treated with herbicide 5/15/2025 by Solitude Lake Management LLC |
| Record Type | Personal communication |
| Verifier | Erin Cimbal, Fairfax County Stormwater |
| Number Collected | 10 |
| Size | <5% |
