Nps "Norway Maple" "Norway Maple" http://www.nps.gov/plants/alien/pubs/midatlantic/acpl.htm Norway Maple "Norway Maple" http://www.nps.gov/plants/alien/pubs/midatlantic/acpl.htm http://www.nps.gov/plants/alien/pubs/midatlantic/acpl.htm http://www.nps.gov/plants/alien/pubs/midatlantic/acpl.htm Norway maple "Norway Maple" "Norway Maple" "Norway Maple" "Norway Maple" "Norway Maple" http://www.nps.gov/plants/alien/pubs/midatlantic/acpl.htm "Norway Maple" http://www.nps.gov/plants/alien/pubs/midatlantic/acpl.htm Norway Maple (Acer platanoides) Norway Maple "Norway Maple" http://www.nps.gov/plants/alien/pubs/midatlantic/acpl.htm http://www.nps.gov/plants/alien/pubs/midatlantic/acpl.htm "Norway Maple" http://www.nps.gov/plants/alien/pubs/midatlantic/acpl.htm Norway Maple (Acer platanoides)