The Plant List — A working list for all plant species

⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-113309, with some changes.

M Machaeranthera tortifolia (Torr. & A.Gray) Cronquist & D.D.Keck is a synonym of Xylorhiza tortifolia var. tortifolia (Torr. & A.Gray) Greene

This name is a synonym of Xylorhiza tortifolia var. tortifolia (Torr. & A.Gray) Greene.

The record derives from TICA which reports it as a synonym (record DA44F79D-EA05-442C-9B73-B756D7BE0204) with original publication details: 239 1957.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:148435-2.