Acer × Norwegian Sunset™
Common name: 
Norwegian Sunset Maple
Pronunciation: 
A-ser
Family: 
Aceraceae
Genus: 
Synonyms: 
‘Keithsform’
A. truncatum × A. platanoides Norwegian Sunset™
Type: 
Broadleaf
Native to (or naturalized in) Oregon: 
No
  • Deciduous tree, 35 ft (10.7 m) tall and 25 ft (7.6 m) wide, upright oval shape.  Leaves intermediate in appearance between its parents, to about 25 cm long × 20 cm wide, 5-7 lobes, basal lobes pointed outward, glossy dark green above, lighter below; fall color from yellow-orange to red.  Fruit (samaras) 4-5 cm long, forming about a 130° angle, the seeds are viable.
  • Sun to part shade, more heat and drought tolerant than a Norway Maple.
  • Hardy to USDA Zone 4b         Developed by Keith Warren at J. Frank Schmidt Nursery, Boring, Oregon and introduced in 1989, a cross of Acer truncatum × Acer platanoides.  Its name reflects the similarity of the tree to a Norway Maple (A. platanoides), in growth rate, branch structure, and leaf shape.  A related cultivar is Pacific Sunset™, it, in comparison to Norwegian Sunset™, has a finer branch structure, is more spreading, and slightly brighter fall color.
  • Oregon State Univ. campus: along the east edge of the parking lot east of the Radiation Center (along Jefferson Way).
Click image to enlarge
  • plant habit and flowers, spring

    plant habit and flowers, spring

  • plant habit, summer

    plant habit, summer

  • leafy branches

    leafy branches

  • leaves and fruit

    leaves and fruit

  • leaves and fruit

    leaves and fruit

  • leaves and fruit, comparison

    leaves and fruit, comparison

  • plant habit and branches, fall

    plant habit and branches, fall

  • leaf, fall

    leaf, fall

  • buds, winter

    buds, winter