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Nature

Ash Tree

What is ash tree?

· Emily Grant

Key facts

genus Fraxinus[2]
family Oleaceae[2]
species count 45–65[2]
growth form trees or shrubs[2]
leaf habit mostly deciduous[3]
distribution Northern Hemisphere[2]

Ash tree is the common name for Fraxinus species, trees or shrubs in the olive family Oleaceae, found in the Northern Hemisphere.

Context

Ash trees are a genus of trees or shrubs in the olive family, known for their opposite branching and compound leaves. They are often used for timber and ornamental purposes. Some species are native to Europe, Asia Minor, and North Africa. Ash trees can be confused with hickories and walnuts, which also have compound leaves, but maples have opposite branching with simple leaves. [1]

Documented claims

  • Ash trees are used for timber and beauty. [2]
  • Ash trees can be identified by opposite branching and compound leaves. [1]
  • Ash trees produce winged seeds called samaras or 'keys.' [1]
  • Ash wood is used for furniture, tool handles, and baseball bats. [4]

Questions and answers

Do ash trees grow in Canada?

Yes, ash trees are found in the Northern Hemisphere, which includes Canada. [2]

What is special about an ash tree?

Ash trees are known for their opposite branching and compound leaves, and they produce winged seeds called samaras. [1]

What are the disadvantages of an ash tree?

Ash trees are susceptible to pests and diseases, such as the emerald ash borer. [5]

How do I identify an ash tree?

Look for opposite branching and compound leaves with 5-11 leaflets. Ash trees also produce clusters of winged seeds. [1]

Sources

  1. Ash | Description, Uses, Diseases, Pests, & Major Species | Britannica — britannica.com (retrieved August 3, 2026)
  2. Ash Tree Identification — csfs.colostate.edu (retrieved August 3, 2026)
  3. Fraxinus americana (American Ash, White Ash) - Plant Toolbox — plants.ces.ncsu.edu (retrieved August 3, 2026)
  4. Ash » HF&G - Holden Arboretum — holdenfg.org (retrieved August 3, 2026)
  5. Ash Tree Varieties, Diseases & Care — savatree.com (retrieved August 3, 2026)

Sources last checked August 3, 2026. · More in Nature