| Specimen ID | 235718 |
| Group | Plants |
| Genus | Egeria |
| Species | densa |
| Common Name | Brazilian waterweed |
| State | CA |
| County | Humboldt |
| Locality | Freshwater Lagoon, south end of Redwood National & State Park, at base of boat launch ramp |
| Mapping Accuracy | Accurate |
| HUC8 Name | Mad-Redwood |
| HUC8 Number | 18010102 |
| HUC10 Name | Big Lagoon-Frontal Pacific Ocean |
| HUC10 Number | 1801010205 |
| HUC12 Name | Luffenholtz Creek-Frontal Pacific Ocean |
| HUC12 Number | 180101020503 |
| Map | |
| Collection Day | 19 |
| Collection Month | 10 |
| Collection Year | 2004 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Record Type | Personal communication |
| Earliest Record | County |
| Verifier | CDFA |
| Freshwater/Marine | Freshwater |
