Gray Alder, Mountain Alder, Thinleaf Alder
Alnus incana ssp. tenuifolia
Synonyms: Alnus incana var. occidentalis, Alnus rugosa, Alnus tenuifolia
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Male and female catkins as seen at left along the Klickitat Trail between the Fisher Hill Bridge and milepost 2.5, Klickitat County, WA.......February 7, 2015.The photo at right shows another close-up view of the male and female catkins of mountain alder as seen from the shoreline of the Deschutes River in the eastern Columbia River Gorge..........January 24, 2016.
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Photos above showing a close-up view of the upper leaf surface as well as a leaf bud of mountain alder from the shoreline of the Deschutes River in the eastern Columbia River Gorge.........Spetember 29, 2007.
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Close-up views of the lower leaf surface of mountain alder as seen from the shoreline of the Deschutes River in the eastern Columbia River Gorge..........Spetember 29, 2007.
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Mountain alder beginning to bloom from the shoreline Drano Lake just east of Cook, WA.........January 17, 2022.
Paul Slichter