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Part of alder genus Alnus in alder / birch / hazel / hornbeam family Betulaceae in bayberry / beech / birch / oak / walnut order Fagales.
Native to 🇺🇸 USA west of the 🏔 Rocky Mountains. 🗺 Map by county (🇺🇸 USA-48) (color key), 🗺 map (North America, Central America).
Uses by native peoples(Ethnobotany database)
Alnus hosts caterpillars of 267 speciesof butterflies and moths, in some areas.
🔍︎ 🔍︎ images Discover Life Encyclopedia of Life Flora of North America NRCS PLANTS db USFS Wikipedia
🏠︎ 🌳︎ broadleaves, ╟ alternate, 🍂︎ simple non-lobed ▲▴▲▴ doubly-toothed