⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-292777, with some changes.

Sagittaria heterophylla var. angustifolia Engelm. is a synonym of Sagittaria rigida Pursh

This name is a synonym of Sagittaria rigida Pursh.

The record derives from WCSP which reports it as a synonym (record 292777) with original publication details: Manual ed. 2: 439 1856.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:225265-2.