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⚠ Version 1 of The Plant List has been superseded.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-83220, with some changes.

M Isopappus validus Rydb. is a synonym of Croptilon hookerianum var. validum (Rydb.) E.B.Sm.

This name is a synonym of Croptilon hookerianum var. validum (Rydb.) E.B.Sm..

The record derives from TICA which reports it as a synonym (record 1944D87E-ADC8-4178-B43B-73D48B37831E) with original publication details: 1931.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:130695-2.