Assertion: birch | /r/HasProperty | genus betula
Facets:
Source sentences:
text: Some of the most popular species belonging to this group include oak (genus Quercus), maple (genus Acer), birch (genus Betula), poplar (genus Populus), hickory (genus Carya), and ash (genus Fraxinus).
text: Birch trees (genus Betula) have delicate leaves, papery bark and graceful silhouettes.