| Specimen ID | 238677 |
| 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 | 4 |
| Collection Month | 10 |
| Collection Year | 1973 |
| Year Accuracy | Actual |
| Potential Pathway | planted ornamental | dispersed |
| Status | established |
| Reference 1 |
| Ref. Number: | 30917 |
| Author: | Janeway, L. (curator). |
| Date: | 2011 |
| Title: | The Chico State Herbarium (CHSC) |
| Publisher: | California State University |
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| Comments | Growing in shallow water and also creeping and rooting on the moist border of a small pond. |
| Record Type | Literature |
| Earliest Record | drainage |
| Disposal | CHSC |
| Museum Cat Number | CHSC-59992 |
| Freshwater/Marine | Freshwater |