⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50306616, and has not been changed.
This name is a synonym of Penstemon lemhiensis (D.D. Keck) D.D. Keck & Cronquist.
The record derives from Tropicos which reports it as a synonym (record 50306616) with original publication details: Amer. Midl. Naturalist 23(3): 612 612 1940.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:187782-2.