The Ash tree reference article from the English Wikipedia on 24-Apr-2004
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Ash tree

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Ash
Closeup of ash tree leaves and seeds
Ash tree leaves and seeds. Photo ©2004 S. Sweeney Monday Garden
Scientific classification
Kingdom: Plantae
Division:Magnoliophyta
Class: Magnoliopsida
Order: Scrophulariales
Family: Oleaceae *
Genus: Fraxinus
Species
Many. See text.
*Some botanists include the Oleaceae
in the order Lamiales.

An ash can be any of many different tree species from three very distinct families, but is most commonly, a tree of the genus Fraxinus.

In North America, the name ash is also given to species of Sorbus, more accurately known as Rowans and Whitebeams. In Australia, many common eucalyptus species are called ash because they too produce hard, fine-grained timber. The best known of these is the Mountain Ash, one of the tallest trees in the world.

The Genus Fraxinus is in the olive family (Family Oleaceae). Ashes are usually medium to large trees. Most have pinnately-compound, opposite leaves. Seeds are borne in keys, a type of fruit known as a samara.

The White Ash is a particularly important timber tree in eastern North America, and is the source of wood for quality wooden baseball bats. The Green Ash is widely planted as a street tree in the United States. The inner bark of the Blue Ash has been used as a source for a blue dye.

Table of contents
1 Ashes of eastern North America
2 Ashes of western and southwestern North America
3 Ashes of the Western Palearctic (Europe, north Africa and southwest Asia)
4 Ashes of the Eastern Palearctic (central & eastern Asia)
5 Cultural aspects

Ashes of eastern North America

Ashes of western and southwestern North America

Ashes of the Western Palearctic (Europe, north Africa and southwest Asia)

Ashes of the Eastern Palearctic (central & eastern Asia)

Cultural aspects

In
Norse mythology, the World Tree, Yggdrasil, was an ash tree, and the man, Ask, was formed from an ash tree (the first woman was made from alder). Elsewhere in Europe, snakes were said to be repelled by ash leaves or a circle drawn by an ash branch. Irish folklore claims that shadows from an ash tree damage crops. In Cheshire, it is said that ash could be used to cure warts or rickets.

See also; Trees of Britain, Trees of the world