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Noun: mountain alder
  1. Small shrubby maple of eastern North America; scarlet in autumn
    - mountain maple, Acer spicatum
     
  2. Tree of western United States
    - white alder, Alnus rhombifolia

Derived forms: mountain alders

Type of: alder, alder tree, maple

Part of: Alnus, genus Alnus

Encyclopedia: Mountain alder