Penstemon albertinus Greene × Penstemon wilcoxii Rydb.

Montana: Lake County: Swan River Valley. Point Pleasant Campground and Nature Trail.
In mixed forest. Stem length typical of wilcoxii, narrow inflorescence typical of albertinus. Hybrid. Phenology: Flowers and Fruits.

Dee Strickler s.n., Jun 21, 1993
ID, Accession: 145138, Barcode: ID118567

Penstemon albertinus Greene × Penstemon wilcoxii Rydb.

Montana: Lake County: Flathead National Forest. Old logging road 1/4 mi N of Swan Lake, MT.
On steep road cut in mixed Doug. fir-true fir forest. The stem length typical of Wilcoxi, the narrow inflorescence of albertinus. Phenology: Flowers.

Dee Strickler s.n., May 29, 1992
ID, Accession: 145126, Barcode: ID118250