⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50314814, with some changes.
This name is a synonym of Penstemon confertus var. geniculatus .
The record derives from Tropicos which reports it as a synonym (record 50314814
) with original publication details: Pittonia 3(18D): 310-311 310 1898.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:187419-2
.