⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-45383, and has not been changed.
This name is a synonym of Rudbeckia fulgida var. sullivantii (C.L.Boynton & Beadle) Cronquist.
The record derives from TICA which reports it as a synonym (record 5B6EAC9D-D9DF-4690-8464-5419A8EA6B90) with original publication details: Rhodora 10: 68. 1908 68 1908.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:223810-2.