⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-52590, with some changes.
This name is a synonym of Silphium asteriscus var. simpsonii .
The record derives from TICA which reports it as a synonym (record 50DBB4DA-302C-4606-97B3-617D8BB402BF
) with original publication details: 44 1899.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:236473-2
.