| Specimen ID | 1399628 |
| Group | Plants |
| Genus | Ludwigia |
| Species | grandiflora |
| Common Name | large-flower primrose-willow |
| State | LA |
| County | Plaquemines |
| Locality | Boat ramp. E side of Hwy 23 |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lower Mississippi-New Orleans |
| HUC8 Number | 08090100 |
| HUC10 Name | Mississippi River LaPlace to Pilottown |
| HUC10 Number | 0809010001 |
| HUC12 Name | Mississippi River-Grand Pass |
| HUC12 Number | 080901000102 |
| Map | |
| Collection Day | 1 |
| Collection Month | 7 |
| Collection Year | 2009 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | unknown |
| Reference 1 |
| Ref. Number: | 19426 |
| Author: | Madsen, J.D. |
| Date: | 2010 |
| Title: | Invasive Plant Atlas of the MidSouth. |
| Publisher: | Geosystems Research Institute, Mississippi State University |
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| Comments | Associated species: Colocasia esculenta, Eichhornia crassipes, Ipomoea alba, Panicum repens, Triadica sebifera, |
| Record Type | Literature |
| Freshwater/Marine | Freshwater |
| Size | 1.5 Acres |
