Acer glabrum var. douglasii
Common name: 
Douglas Maple
Dwarf Maple
Rocky Mountain Maple
A-ser GLAH-brum dug-LAS-ei
Sapindaceae, Aceraceae
Native to (or naturalized in) Oregon: 
  • Broadleaf deciduous small tree, to 30 ft (10 m) tall, or often a multi-stemmed shrub 4-6 ft (1.2-1.8 m) tall, upright, twigs reddish or grayish in shade.  Leaves opposite, simple, ovate, 6-12(20) cm across, 3-5 lobes (occasionally divided into 3 leaflets), base slightly heart-shaped, margin deeply, sharply, and irregularly or double toothed, shiny dark green above, blue-green below; petiole long (4-10 cm), slender, often reddish tinged.  Fall foliage ranges from yellow to orange to crimson.  Flowers 5 mm across, yellowish green, with 5 petals, in terminal clusters.   Male and flower flowers usually appearing on separate trees. Appear with the leaves.   Fruit wings 2-2.5 cm long, nearly parallel; green then pink or reddish, turing light brown in fall.
  • Sun to part shade.
  • Hardy to USDA Zone 4    Native range from southeastern Alaska, British Columbia, Alberta, Montana, Idaho, Washington and Oregon.
  • douglasii: named after David Douglas (1798-1834), Scottish botanist and plant explorer.
Click image to enlarge
  • plant habit

    plant habit

  • new growth

    new growth

  • leaves


  • leaf


  • leaf, underside

    leaf, underside

  • leaf, comparison

    leaf, comparison

  • sometimes a leaf is compound (3 leaflets)

    sometimes a leaf is compound (3 leaflets)

  • flower


  • young fruit cluster

    young fruit cluster

  • fruiting branch, shady site

    fruiting branch, shady site

  • leaves and fruit, exposed site

    leaves and fruit, exposed site

  • shoot tip and stem, exposed site

    shoot tip and stem, exposed site

  • plant habit, fall

    plant habit, fall

  • leaf,fall


  • stem, spring bud and trunk

    stem, spring bud and trunk