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Acer Norwegian Sunset™ (syn. Keithsform; also A. truncatum × A. platanoides Norwegian Sunset™)
P.P. No. 7529 Aceracea
Norwegian Sunset Maple
A-ser
- 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 130o 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 SunsetTM, it, in comparison to Norwegian SunsetTM, 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).