⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50110078, and has not been changed.
This name is a synonym of Penstemon californicus (Munz & I.M. Johnst.) D.D. Keck.
The record derives from Tropicos which reports it as a synonym (record 50110078) with original publication details: Bull. S. Calif. Acad. Sci. 23(1): 31-32 31 1924.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:187453-2.