Noun
a genus of trees of the family Betulaceae (such as birches)
Source: WordNetThe most common tree native to Greenland is the European white birch ( Betula pubescens ) along with gray-leaf willow ( Salix glauca ), rowans ( Sorbus aucuparia ), common junipers ( Juniperus communis ) and other smaller trees, mainly willows. Source: Internet
Response of Populus tremuloides, Populus balsamifera, Betula papyrifera and Picea glauca seedlings to low soil temperature and water-logged soil conditions. Source: Internet