⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2610996, with some changes.
This name is a synonym of Corynabutilon × suntense (C.Brickell) Fryxell.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: J. Roy. Hort. Soc. 96: 275 1971.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:558535-1.