⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-292681, with some changes.
This name is a synonym of Sagittaria rigida Pursh.
The record derives from WCSP which reports it as a synonym (record 292681) with original publication details: Rhodora 15: 159 1913.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:225268-2.