⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50306615, with some changes.
This name is a synonym of Penstemon deustus var. heterander (Torr. & A. Gray) Cronquist.
The record derives from Tropicos which reports it as a synonym (record 50306615) with original publication details: Pacif. Railr. Rep. 2(1): 123, pl. 8 123 1855.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:187532-2.