Norway maples can grow quite large, with rounded crowns. Norway maple trees seed prolifically, causing them to become invasive in North American forests. Norway maples are found throughout most of the Northern U.S. and Eastern and Western Canada.
- Alternate Common Name: None
- Average Height: The Norway maple tree is a large tree with a typical height between 65 and 100 ft. at maturity.
- Average Width: Norway maples have a broad, rounded crown
- Leaf Description: The leaves of the Norway maple tree are opposite with five lobes, 3-5 in. long and 3-8 in. across. Five lobes with one to three side teeth, and a smooth margin. The leaf petiole secretes a milky substance when broken.
- Bark Description: The bark of Norway maples is grey-brown and shallowly grooved.
- Twig Description: Twigs of Norway maples are green, then turn pale brown.
- Flowering: Flowers on Norway maples are yellow to yellow-green with five sepals and five petals in groups of 15-30 on pedicels. Flowering occurs in early spring before leaf emergence.
- Needle or Broadleaf: Broadleafed
- Comments: Many differenet common cultivars of Norway maples exist in the landscape (Crimson King, Schwedler, etc.). Norway maples are native to Europe and western Asia. Norway maples seed prolifically, causing them to become invasive in North American forests. Develops canker diseases and occluded bark that can make the tree structurally unsound.