⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50288936, and has not been changed.
This name is a synonym of Penstemon parryi (A. Gray) A. Gray.
The record derives from Tropicos which reports it as a synonym (record 50288936) with original publication details: Rep. U.S. Mex. Bound., Botany 2(1): 113 113 1859.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:187719-2.