Cornus sericea “Red Osier Dogwood” Cornaceae

Weir Hot Springs, Clearwater National Forest, ID
June 8, 2015
Robert Niese

Red Osier Dogwood, so named for its beautiful red bark, is a common riparian and moist forest species throughout the PNW. Our region is home to three members of the genus Cornus and they couldn’t look any less alike! While C. sericea grows in a large shrubby form, it’s close cousin C. canadensis only grows a single stem a few centimeters off the ground. And C. nuttallii grows as a tree with large, white, showy “flowers.” In the fall and winter, Red Osier Dogwood’s white berries attract grouse and other birds, but are largely unpalatable to humans. Its bark, however, is often used in kinnikinnick and tobacco smoking mixtures.

Acer macrophyllum “Bigleaf Maple” Aceraceae

Olympic National Park, WA
June 6, 2013
Robert Niese

The largest leaves on Bigleaf Maples easily reach 2 feet in length! These trees are keystone species in riparian zones throughout the wet lowlands of the PNW and are particularly important for sustaining healthy moss populations.