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⚠ Version 1 of The Plant List has been superseded.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 kew-2705018, with some changes.

M Castilleja floccosa Pennell ex M.Peck is a synonym of Castilleja arachnoidea Greenm.

This name is a synonym of Castilleja arachnoidea Greenm..

The record derives from WCSP (in review) which reports it as a synonym and as an invalid name with original publication details: Man. Pl. Oregon 664 1941.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:800962-1.