| Specimen ID | 238675 |
| Group | Plants |
| Genus | Ludwigia |
| Species | grandiflora |
| Common Name | large-flower primrose-willow |
| State | OR |
| County | Lane |
| Locality | Eugene, between U.S. Highway 99W and Empire Park Road. |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Willamette |
| HUC8 Number | 17090003 |
| HUC10 Name | Long Tom River |
| HUC10 Number | 1709000301 |
| HUC12 Name | Amazon Creek |
| HUC12 Number | 170900030108 |
| Map | |
| Collection Day | 31 |
| Collection Month | 7 |
| Collection Year | 1981 |
| Year Accuracy | Actual |
| Potential Pathway | planted ornamental |
| Status | established |
| Reference 1 |
| Ref. Number: | 16085 |
| Author: | University of Washington. |
| Date: | 2007 |
| Title: | Burke Museum of Natural History and Culture: Herbarium. |
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| Comments | Flowering; recorded as Ludwigia hexapetala |
| Record Type | Literature |
| Museum Cat Number | WTU-286356/59993 |
| Verifier | P. F. Zika |
| Freshwater/Marine | Freshwater |
