Acer truncatum
Common name: 
Purpleblow Maple
Shantung Maple
Pronunciation: 
A-ser trun-KA-tum
Family: 
Aceraceae
Genus: 
Type: 
Broadleaf
Native to (or naturalized in) Oregon: 
No
  • Deciduous tree, 20-30 ft (6-9 m) tall, similar spread, bark tinged with purple when young, rough and fissured when older.  Leaves simple, opposite, 7-10 cm wide, 5-7 triangular-shaped lobes, basal lobes drawn out, base sometimes truncated, dark green above, paler below, fall color yellow to reddish, new leaves purplish; milky sap exuded when petiole broken.  Flowers yellow-green, in 6-8 cm wide, upright clusters (corymbs).  Fruit (samaras) 3-4 cm long, forming about a 90° angle.
  • Sun to part shade.  A relatively tough tree, heat tolerant.  Promoted as tree with good fall color in warm areas.
  • Hardy to USDA Zone 4         Native to the forests of northern China (used as a street tree) and Korea and the Amur region of Siberia in Russia.
  • Acer truncatum × Acer platanoides. Keith Warren, at J. Frank Schmidt Nursery, Boring, Oregon, introduced the following two trees from this cross in 1989. 

    • Acer Norwegian Sunset™ : its name reflects the similarity of the tree to a Norway Maple (A. platanoides), in growth rate, branch structure, and leaf shape.  
    • Acer Pacific Sunset™: in comparison to Norwegian Sunset™, it has a finer branch structure, is more spreading, and slightly brighter fall color.
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  • flowering branch, spring

    flowering branch, spring

  • flower cluster

    flower cluster

  • flower

    flower

  • plant habit

    plant habit

  • leaves and fruit

    leaves and fruit

  • leaf

    leaf

  • plant habit, fall

    plant habit, fall

  • leaves, fall

    leaves, fall

  • trunk, bark

    trunk, bark

  • winter twigs, buds

    winter twigs, buds