| Specimen ID | 247685 |
| Group | Plants |
| Genus | Alternanthera |
| Species | philoxeroides |
| Common Name | alligatorweed |
| State | CA |
| County | Riverside |
| Locality | Riverside, Santa Ana River, under the NW end of the Market St. bridge |
| Mapping Accuracy | Accurate |
| HUC8 Name | Santa Ana |
| HUC8 Number | 18070203 |
| HUC10 Name | Middle Santa Ana River |
| HUC10 Number | 1807020308 |
| HUC12 Name | East Etiwanda Creek-Santa Ana River |
| HUC12 Number | 180702030804 |
| Map | |
| Collection Day | 29 |
| Collection Month | 9 |
| Collection Year | 1999 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Reference 1 |
| Ref. Number: | 10714 |
| Author: | Regents of the University of California |
| Date: | 2015 |
| Title: | Jepsen online interchange for California floristics. |
| Publisher: | University and Jepson Herbaria, University of California, Berkeley. |
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| Record Type | Literature |
| Museum Cat Number | UCR-110460 |
| Freshwater/Marine | Freshwater |
