⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50110066, with some changes.
This name is a synonym of Penstemon crandallii var. taosensis (D.D. Keck) G.T. Nisbet & R.C. Jacks..
The record derives from Tropicos which reports it as a synonym (record 50110066) with original publication details: Bull. Torrey Bot. Club 64(6): 373-374 373 1937.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:310149-2.