⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-8501521, with some changes.
This name is a synonym of Calystegia occidentalis subsp. fulcrata .
The record derives from Tropicos which reports it as a synonym (record 8501521
) with original publication details: Ann. Missouri Bot. Gard. 52(2): 215 215 1965.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:43556-2
.