⚠ Version 1 of The Plant List has been superseded.

This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Penstemon grinnellii in version 1.1 of The Plant List.

Penstemon grinnellii subsp. scrophularioides (M.E. Jones) Munz is a synonym of Penstemon grinnellii var. scrophularioides (M.E. Jones) N.H. Holmgren

This name is a synonym of Penstemon grinnellii var. scrophularioides (M.E. Jones) N.H. Holmgren.

The record derives from Tropicos which reports it as a synonym (record 29201359) with original publication details: Aliso 4(1): 99 99 1958.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:187520-2.