Red Birch, River Birch, Spring Birch, Water Birch
Betula occidentalis
Synonyms: Betula beeniana, Betula fontinalis, Betula fontinalis var. inopina, Betula microphylla var. fontinalis, Betula microphylla var. fontinalis, Betula occidentalis var. inopina, Betula occidentalis var. occidentalis, Betula papyrifera ssp. occidentalis, Betula papyrifera

River birch as seen along the Company Road which parallels the west bank of the Klickitat River near Beeks Canyon, Klickitat County, Washington.........July 21, 2011.
- 

River birch as seen along the Company Road which parallels the west bank of the Klickitat River near Beeks Canyon, Klickitat County, Washington..........July 21, 2011.

River birch growing on the banks of an irrigation canal adjacent to the headquarters of the Conboy Lake National Wildlife Refuge.....May 15, 2021.
Paul Slichter