⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-8501529, and has not been changed.
This name is a synonym of Calystegia sepium subsp. angulata Brummitt.
The record derives from Tropicos which reports it as a synonym (record 8501529) with original publication details: Intermount. Fl. 4: 77 77 1984.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:1087055-2.