⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-29201249, with some changes.
This name is a synonym of Penstemon deustus var. arenarius (Greene) Jeps..
The record derives from Tropicos which reports it as a synonym (record 29201249) with original publication details: Pittonia 1(19): 282 282 1889.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:187159-2.