This name is a synonym of Penstemon confertus var. attenuatus .
The record derives from Tropicos
(data supplied on )
which reports it as a synonym (record 50079836
) with original publication details: Bull. Sci. Acad. Imp. Sci. Saint-Pétersbourg 5: 345 1839.
⥇ A cross-taxon basionym link was ignored while processing this record, see Penstemon attenuatus .
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:187355-2
.
This name was in version 1 of The Plant List, record tro-50079836.