Acer grandidentatum
Common name: 
Bigtooth Maple
Western Sugar Maple
Rocky Mountain Sugar Maple
Pronunciation: 
A-ser gran-de-den-TAY-tum
Family: 
Sapindaceae, Aceraceae
Genus: 
Type: 
Broadleaf
Native to (or naturalized in) Oregon: 
No

This species is now considered, by the World Flora Online (WFO), as a subspecies of Acer saccharum, hence, Acer saccharum supsp. grandidentatum.

See Acer saccharum supsp. grandidentatum

Click image to enlarge