Betula pendula
Several varieties of "B. pendula" are no longer accepted, including "B. pendula" var. "carelica", "fontqueri", "laciniata", "lapponica", "meridionalis", "microlepis", and "parvibracteata", as well as forms "Betula pendula" f. "bircalensis", "crispa", and "palmeri". Other synonyms include: