genus of mostly woody relatively primitive dicotyledonous flowering plants with flowers often unisexual and often borne in catkins

monoecious trees and shrubs (including the genera Betula and Alnus and Carpinus and Corylus and Ostrya and Ostryopsis)

any betulaceous tree or shrub of the genus Betula having a thin peeling bark

tree of eastern North America with thin lustrous yellow or grey bark

small American birch with peeling white bark often worked into e.g. baskets or toy canoes

medium-sized birch of eastern North America having white or pale grey bark and valueless wood; occurs often as a second-growth forest tree

monoecious trees and shrubs (including the genera Betula and Alnus and Carpinus and Corylus and Ostrya and Ostryopsis)

any betulaceous tree or shrub of the genus Betula having a thin peeling bark

tree of eastern North America with thin lustrous yellow or grey bark

small American birch with peeling white bark often worked into e.g. baskets or toy canoes

medium-sized birch of eastern North America having white or pale grey bark and valueless wood; occurs often as a second-growth forest tree