Alnus viridis (Vill.) DC.
Common Name: GREEN ALDER, MOUNTAIN ALDER
Synonym: Alnus crispa
Coefficient of Conservatism: 8
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt Shrub

A. crispa of Michigan Flora.

Forming thickets in mixed forests and clearings, on river banks, and along Lake Superior on upper beaches, sand bluffs, and rock outcrops. Often more abundant than A. incana in the Lake Superior area, and occurring in much drier habitats, but very local elsewhere.

Our plants are subsp. crispa (Aiton) Turrill; subsp. viridis is restricted to Europe.

Locations

Alger County
Baraga County
Dickinson County
Gogebic County
Houghton County
Keweenaw County
    Including Isle Royale
Luce County
Marquette County
Schoolcraft County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 16, 2017. http://www.michiganflora.net/species.aspx?id=549.