Betula papyrifera subsp. humilis (Regel) Hultén
Betula papyrifera subsp. humilis (Regel) Hultén is a synonym sensu FNA Ed. Comm., 1997 of:
Betula pendula subsp. mandshurica (Regel) Ashburner & McAllister, an accepted subspecies name sensu POWO.
Betula papyrifera subsp. humilis (Regel) Hultén is a synonym sensu FNA Ed. Comm., 1997 of:
Betula pendula subsp. mandshurica (Regel) Ashburner & McAllister, an accepted subspecies name sensu POWO.