⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-4912, with some changes.
This name is a synonym of Machaeranthera sonorae (A.Gray) Stucky.
The record derives from TICA which reports it as a synonym (record 237C4F0E-CDB6-4F6B-8D02-092A55E82E9E) with original publication details: 76 1853.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:315479-2.