Blue Ash
(Fraxinus quadrangulata)

Other common names: Four-angled Ash

French names: Frêne anguleux

Family: Olive Family (Oleaceae)

Group: Ashes

Distinctive features: Tree;Square twigs

Similar species:
  •   White Ash (Fraxinus americana) - does not have square twigs.

  •   Black Ash (Fraxinus nigra) - does not have square twigs.

  •   Green Ash (Fraxinus pennsylvanica) - does not have square twigs.

  •   Red Ash (Fraxinus pensylvanica) - does not have square twigs.


Flowers: Spring

Leaves: Opposite/Whorled;  Compound/Divided;  Entire;  Opposite, compound

Books: Trees in Canada: 168   

Native/Non-native: Native

Status: Rare

Notes: This tree only grows in a few locations in extreme SW Ontario, or other locations where it has been deliberately planted. Its distinctive feature is its 4-sided twigs.

See Also:
  •   Great Americans: Ashes & Elders, from The Monday Garden, by Sue Sweeney


Photographs: 48 photographs available, of which 5 are featured on this page. SCROLL DOWN FOR PHOTOGRAPHS.

  

Sign at the University of Guelph Arboretum, Guelph, Ontario.

This tree is very rare in Ontario.

This tree's distinctive feature is the square (4-sided) twigs.

Another view of a 4-sided twig.

Trunk and bark.

The whole tree.
  

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