⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Ludwigia uruguayensis in version 1.1 of The Plant List.
This name is a synonym of Ludwigia grandiflora subsp. hexapetala .
The record derives from Tropicos which reports it as a synonym (record 23200208
) with original publication details: J. Jap. Bot. 28(10): 294 294 1953.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:144442-2
.