Penstemon wilcoxii Rydb. var. leptophyllus Rydb.
Annotated by F. W. Pennell, 1941. Remarks: unresolved name - may be same as P. leptophyllus - also unresolved.

Idaho: Boise County: Thorne Creek, near junction with Moore's Creek.
Phenology: Flowers.

Harold M. Tucker 1165, No date given.
IDS, Accession: 1999.001, Catalog: 1999.1.1837, Barcode: IDS0041832