⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-18100050, with some changes.
This name is a synonym of Wolffia columbiana H.Karst..
The record derives from Tropicos which reports it as a synonym (record 18100050) with original publication details: Amer. Midl. Naturalist 2: 306 306 1912.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:37573-2.