HUC Code | Watershed Name | Occurrence | Source |
18020109 | Lower Sacramento | Current | NatureServe |
18040003 | San Joaquin Delta | Current | NatureServe |
18050001 | Suisun Bay | Current | NatureServe |
18050002 | San Pablo Bay | Current | NatureServe |
18050004 | San Francisco Bay | Current | NatureServe |