⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Pleurospermum longicaule in version 1.1 of The Plant List.
This name is a synonym of Seseli mucronatum .
The record derives from Tropicos which reports it as a synonym (record 1704597
) with original publication details: Repert. Spec. Nov. Regni Veg. 27(726-735): 117 117 1929.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:847271-1
.