⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-23033, and has not been changed.
This name is a synonym of Rudbeckia laciniata var. ampla .
The record derives from TICA which reports it as a synonym (record 66856C5D-A2A5-4B70-B00C-2AA5F5EB989E
) with original publication details: 1901.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:223700-2
.