Alnus incana (Grey Alder) is a species of tree in the family Betulaceae. They have a self-supporting growth form. They are native to United States, Canada, Alaska, Saint-Pierre Et Miquelon, North America, The Contiguous United States, Eastern North America, and Western North America. They have simple, broad leaves. Individuals can grow to 12 m.

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EOL has data for 84 attributes, including:

Known occurrences, collected specimens and observations of Grey Alder. View this species on GBIF