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Alphabetical List of Tree Common Names Alphabetical List of Tree Scientific Names Identification Key Mystery Tree

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bigleaf maple (Acer macrophyllum)

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  • Size: Grows to 100' tall and 4' in diameter.

  • Leaves: Simple, opposite, and deciduous. Very large. Palmately lobed (5 lobes) with the central lobe having a distinct "waist." Long leaf stalk with milky sap.

  • Fruit: Double samaras in long clusters; samaras joined at right angles; hairy seeds.

  • Twigs: Buds and branchlets are opposite.

  • Bark: Grayish or reddish-brown; interlacing ridges and furrows.

  • Distribution: Bigleaf maple grows on the west side of the Cascades and Sierras from British Columbia through most of California. It prefers moist, well-drained soils



vine maple (Acer circinatum)

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  • Size: Generally under 20' tall with multiple stems several inches in diameter.

  • Leaves: Simple, opposite, deciduous. Palmately lobed with 5-9 lobes (usually 7). Average 2"-4" in diameter. Circular outline.

  • Fruit: Double samaras that resemble an airplane propeller.

  • Twigs: Opposite buds and branchlets. Twigs often end in 2 buds.

  • Bark: Smooth with a greenish tinge.

  • Distribution: Vine maple grows throughout the Pacific Northwest. It likes damp places and fairly good soil.



Rocky Mountain maple (Acer glabrum)

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  • Size: Generally under 12' tall and several inches in diameter.

  • Leaves: Simple, opposite, deciduous. Palmately lobed with 3 lobes; margins serrate. Leaves 2"-5" in diameter.

  • Fruit: Double samaras joined at nearly right angles to one another.

  • Twigs: Opposite buds and branchlets. Buds have 2 dark red scales.

  • Bark: Smooth with a greenish tinge.

  • Distribution: Rocky Mountain maple extends farther east than the other Oregon maples - ranging as far as South Dakota and Nebraska, and as far south as New Mexico and Arizona.



For more information about these species see "Trees to Know in Oregon".


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