⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2705300, and has not been changed.

Castilleja rhexifolia var. sulphurea (Rydb.) N.D.Atwood is a synonym of Castilleja sulphurea Rydb.

This name is a synonym of Castilleja sulphurea Rydb..

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Great Basin Naturalist 46: 260 1986.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:274201-2.