| Specimen ID | 1438376 |
| Group | Plants |
| Genus | Alternanthera |
| Species | philoxeroides |
| Common Name | alligatorweed |
| State | CA |
| County | Los Angeles |
| Locality | Brea Canyon Freeway project, stockpiled sand from Whittier Narrows. Detection report only, no confirming specimen. |
| Mapping Accuracy | Accurate |
| HUC8 Name | San Gabriel |
| HUC8 Number | 18070106 |
| HUC10 Name | Lower San Gabriel River |
| HUC10 Number | 1807010606 |
| HUC12 Name | Brea Creek-Coyote Creek |
| HUC12 Number | 180701060603 |
| Map | |
| Collection Day | 3 |
| Collection Month | 9 |
| Collection Year | 1970 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Reference 1 |
| Ref. Number: | 25610 |
| Author: | Calflora |
| Date: | 2021 |
| Title: | The Calflora Database: Information on California plants for education, research and conservation |
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| Comments | Calflora observation ID: xr174466 |
| Record Type | Literature |
| Freshwater/Marine | Freshwater |
