⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-287268, with some changes.
This name is a synonym of Sagittaria rigida Pursh.
The record derives from WCSP which reports it as a synonym and as an illegitimate name (record 287268) with original publication details: Fl. Amer. Sept. 2: 396 1813.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:58504-1.