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Oregon Ash

Fraxinus latifolia

Oregon Ash

Quick Facts

Deciduous or Evergreen?

Deciduous

Avg Height'

Avg Diameter"

60

24

Rarity

Family

Oleaceae

Growing Zone

In Arboretum?

6 - 8

Yes

Help

What's this?

This tree is a popular shade species that has bright green leaves, which turn yellow, orange, red, and even purple in the fall. This tree is native to North America, and thrives in the Pacific Northwest. This tree requires full sun with little competition. The Oregon Ash does best in unfortunate circumstances, often being the first to sprout back after ecological disasters. The bark of this tree is grey and brown, without significant identifying factors.

Image by Jean-Pol GRANDMONT, Wiki Creative Commons

Foliage

The leaves of this tree grow in groupings, all branching out from the same central stem, remaining symmetrical down the midline.

Seeds or Cones

This tree has relatively conventional ash tree seeds, which hang down in long pods from the branches below leaves.

All illustrations by A.S. Longman

Did you know?

This tree will rearrange its structure depending on crowding. If surrounded by other trees, it will remain narrow and thin. If left in the open, the Oregon Ash can produce a massive canopy.

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Information last fact checked by UW Botanic Garden in Spring 2024

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