⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2704988, with some changes.
This name is a synonym of Castilleja angustifolia var. dubia .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Leafl. W. Bot. 3: 89 1941.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:49486-2
.