⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-16548, and has not been changed.
This name is a synonym of Silphium integrifolium var. integrifolium .
The record derives from TICA which reports it as a synonym (record CB255EA3-ABA9-42C0-84BB-1E94A0F4FDDC
) with original publication details: Rhodora 39: 287. 1937 287 1937.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:236449-2
.