⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2332275, with some changes.
This name is a synonym of Ludwigia leptocarpa (Nutt.) H.Hara.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Mem. New York Bot. Gard. 7: 317 1927.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:132593-2.