⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-29203964, with some changes.

Penstemon ternatus Torr. ex A. Gray is a synonym of Keckiella ternata (Torr. ex A. Gray) Straw

This name is a synonym of Keckiella ternata (Torr. ex A. Gray) Straw.

The record derives from Tropicos which reports it as a synonym (record 29203964) with original publication details: Rep. U.S. Mex. Bound., Botany 2(1): 115 115 1859.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:808318-1.