⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-67893, and has not been changed.
This name is a synonym of Xylorhiza tortifolia var. imberbis .
The record derives from TICA which reports it as a synonym (record 044C3658-17C9-46B2-BC0A-DAD2EB5F1B80
) with original publication details: Leafl. W. Bot. 10: 12. 1963 1963.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:148436-2
.