swamp birch water birch mountain birch Western paper birch Western birch Betula fontinalis
swamp_birch%1:20:00:: water_birch%1:20:00:: mountain_birch%1:20:00:: western_paper_birch%1:20:00:: western_birch%1:20:00:: betula_fontinalis%1:20:00::
birch of western United States resembling the paper birch but having brownish bark