Green Alder, Siberian Alder, Sitka Alder, Slide Alder, Wavy-leaf Alder, Wavy-leaved Alder
Alnus viridis ssp. sinuata
Synonyms: Alnus alnobetula, Alnus crispa ssp. laciniata, Alnus crispa ssp. sinuata, Alnus sinuata, Alnus sitchensis, Alnus viridis ssp. fruticosa, Alnus viridis var. sinuata, Duschekia sinuata
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Both photos show the male catkins of Sitka
alder as seen along Forest Rd 551 on the west side of Mt. Adams..........May
30, 2005. One characteristic of this species is that the catkins appear
with the new leaves.
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The photo at left shows the new leaves of Sitka
alder as seen along Forest Rd 551 on the west side of Mt. Adams, Gifford Pinchot National Forest...........May
30, 2005. The photo at right shows Sitka alder along the Round the Mountain Trail #9 near the junction with the Shorthorn Trail #12, Mt. Adams Wilderness......July 10, 2020.
A leaf of Sitka alder as seen along the shoreline at Bench Lake, Tract D Yakama Lands, eastern Mt. Adams...........August 11, 2013. Note the numerous minute teeth along the leaf margin.
Paul Slichter