⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2673429, with some changes.
This name is a synonym of Mahonia aquifolium var. lyallii Ahrendt.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: J. Arizona-Nevada Acad. Sci. 30: 53 1997.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:1183909-2.