⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-118973, and has not been changed.
This name is a synonym of Helianthus heterophyllus Nutt..
The record derives from TICA which reports it as a synonym (record 619D3EBE-5FED-459E-9720-C43273D699F2) with original publication details: Fl. S.E. U.S. [Small]. "1266, 1340" 1903.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:119122-2.