rock maple

Từ điển WordNet v3.1 - WordNet Dictionary

noun

maple of eastern and central North America having three-lobed to five-lobed leaves and hard close-grained wood much used for cabinet work especially the curly-grained form;
sap is chief source of maple syrup and maple sugar;
many subspecies
• Syn:
sugar maple, Acer saccharum
• Hypernyms:
maple