Keele University Arboretum
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Caucasian Ash - Fraxinus angustifolia ssp. oxycarpa
Origin: this tree has a more eastern distribution than the similar Narrow-leaved Ash, being found in the E. Mediterranean, parts of S.E. Europe and the Caucasus. It was introduced in 1815 and is uncommon in collections. The cultivar 'Raywood', also known as Claret Ash, is popular in cultivation for its beautiful purple-red autumn colours.
The buds are brown and the leaflets mostly 3 to 7 in number being narrowly elliptic to lanceolate in shape, 30 to 60mm long; tapered to an acute point with a very short stalk. There are small, brownish hairs at the base of the mid-rib beneath (no hairs on Narrow-leaved Ash).
At Keele : with a collection of ashes; compartment 7a; square S17.