⚠ Version 1 of The Plant List has been superseded.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 Polypodium attenuatum in version 1.1 of The Plant List.
This name is a synonym of Serpocaulon attenuatum .
The record derives from Tropicos which reports it as a synonym (record 26614284
) with original publication details: Sp. Pl. 5(1): 191 191 1810.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:17183420-1
.