⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50070013, with some changes.
This name is a synonym of Calystegia spithamaea subsp. stans .
The record derives from Tropicos which reports it as a synonym (record 50070013
) with original publication details: Fl. Bor.-Amer. 1: 136 136 1803.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:64677-2
.