⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50067045, with some changes.
This name is a synonym of Zizia aurea f. obtusifolia .
The record derives from Tropicos which reports it as a synonym (record 50067045
) with original publication details: Rhodora 2(23): 225 225 1900.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:271193-2
.