⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-104313, with some changes.
This name is a synonym of Xylorhiza tortifolia var. tortifolia .
The record derives from TICA which reports it as a synonym (record E53E65F5-DB24-46FD-BA8B-A33E6D130C5B
) with original publication details: 146 1910.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:269865-2
.