⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-54274, with some changes.
This name is a synonym of Helianthus laevigatus Torr. & A.Gray.
The record derives from TICA which reports it as a synonym (record 08FBD7A9-5A21-4ABA-970E-6CB45879ABFB) with original publication details: "Gard. & Forest 2: 136, f. 100" "136, f. 100" 1889.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:119179-2.