Alnus rubra Bong. × Alnus tenuifolia Nutt.

Idaho: Boundary County: 2 miles up Camp 9 Road off U. S. 95, Bonners Ferry 10N. Elev. 3000 ft.
48.691326° N, 116.316309° W,
Datum: WGS 84. Uncertainty: 6768 meters. Coordinate Source: GeoLocate.
Ecological zone: Tsuga/Thuja, with Betula papyrifera. Habitat: mixed pole stand of birch and alder in moist swale. Slope: 0%; Exposure: SW. Abundance (1-5): 3. Height: 40'; DBH: 8". Very deeply lobed for hybrids. Phenology: Fertile.

F. D. Johnson s.n., May 29, 1973
With P. E. Graf
ID, Accession: 156663, Barcode: ID077486