| Specimen ID | 273317 |
| Group | Plants |
| Genus | Limnobium |
| Species | laevigatum |
| Common Name | West Indian spongeplant |
| State | CA |
| County | Contra Costa |
| Locality | Upright plant established in San Joaquin River |
| Mapping Accuracy | Approximate |
| HUC8 Name | Middle San Joaquin-Lower Chowchilla |
| HUC8 Number | 18040001 |
| Map | |
| Collection Day | 8 |
| Collection Month | 8 |
| Collection Year | 2007 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
