[Alders of Denali National Park and Preserve]

Sitka Alder

Alnus viridis ssp. sinuata

Synonyms: Alnus alnobetula, Alnus crispa ssp. laciniata, Alnus crispa ssp. sinuata, Alnus sinuata, Alnus viridis var. sinuata

Male catkins of Sitka Alder: Alnus viridis ssp. sinuata (Synonyms: Alnus alnobetula, Alnus crispa ssp. laciniata, Alnus crispa ssp. sinuata, Alnus sinuata, Alnus viridis var. sinuata)

The male catkins of Sitka alder as seen along the Camp Ridge Trail above Camp Denali, Denali National Park.............June 16, 2012.
Paul Slichter