Norway Maple Tree Problems
Opinion: The Norway maple is a bully, and shouldn't be confused with the sugar maple tree - The Globe and Mail
Online Orchards Norway Maple Tree - Among The Most Cold Hardy and Fastest Growing Maples (Bare Root, 3 ft. to 4 ft. Tall) SHNM002 - The Home Depot
Norway Maple Tree Problems
Acer saccharum UBC Botanical Garden Forums
Lend Me Some Sugar (Maple)
Plant This, Not That - by Lolly Jewett - The Bees' Knees
Norway Maple vs Sugar Maple: Identification
People Forestry
Norway Maple: Is It Really a Bad Tree? - Life in Norway
Where does the maple leaf on Canada's flag come from? Why isn't there a similar symbol on Australia's flag? - Quora