Found on rock slides, glacial moraines, and other open, disturbed sites, Sitka Alder is common from middle to subalpine elevations. It is most often a multiple-branched tall shrub. This is subspecies sinuata.
Location: Faraway Rock, Mount Rainier National Park
Date: August 1, 2014
Male and female catkins are borne on the same plant at the same time as the leaves open. The female flowers mature into a woody, conelike structure.
Location: Ricksecker Point, Mount Rainier National Park
Date: May 18, 2014