⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-80784, and has not been changed.

Echinomeria apetala (Torr. ex Nutt.) Nutt. is a synonym of Helianthus atrorubens subsp. radula (Pursh) Anashch.

This name is a synonym of Helianthus atrorubens subsp. radula (Pursh) Anashch..

The record derives from TICA which reports it as a synonym (record 3986AD90-BDB9-4B33-B56E-6E545A3E81D3) with original publication details: 356 1840.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:202389-1.