Penstemon attenuatus Douglas ex Lindl. ssp. hyacinthinus Pennell

Idaho: Idaho County: East of Beargrass Lookout, Beargrass Mountain Ridge. Elev. 5300-5500 feet
45.38528° N, 114.94889° W
Coordinate Source: Estimated.
Coniferous forest. Isotype. Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 8. 1941. Isotype.

Pennell, Francis W. 20879, Jul 12, 1937
With
WS, Accession: 160313

Penstemon attenuatus Dougl. ex Lindl. ssp. hyacinthinus Pennell

Idaho: Idaho County: Beargrass Mountain Ridge, E of Beargrass Lookout. Elev. 5300-5500 ft.
Coniferous forest. Corolla 'hayes-blue' to 'hyacinth-blue.'. Phenology: Flowering. Isotype: Penstemon attenuatus Dougl. ex Lindl. ssp. hyacinthinus Pennell. Published 1941. Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 8. 1941.

Francis W. Pennell 20879, Jul 12, 1937
RM, Accession: 200511, Barcode: RM0004153