⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50092326, with some changes.
This name is a synonym of Calystegia purpurata subsp. saxicola .
The record derives from Tropicos which reports it as a synonym (record 50092326
) with original publication details: Fl. Calif. 3: 124 124 1939.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:64639-2
.