river birch Synonyms

red birch Betula nigra black birch birch downy birch betula alba betula excelsa betula jacquemontii betula lutea betula utilis himalayan birch Betula pubescens silver birch Betula pendula yellow birch Betula alleghaniensis paper birch Betula papyrifera gray birch Betula populifolia white-barked himalayan birch