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Fraxinus angustifolia subsp. angustifolia has become a weed in many parts of Australia, where it is known as Desert Ash. It has been widely planted as a street and park tree, and has spread to native bushland and grasslands, as well as stream banks and drainage lines, out-competing native plants for moisture, light and nutrients.
Fraxinus excelsior, known as the ash, or European ash or common ash to distinguish it from other types of ash, is a flowering plant species in the olive family Oleaceae. It is native throughout mainland Europe [ 2 ] east to the Caucasus and Alborz mountains, and west to Great Britain and Ireland , the latter determining its western boundary.
European ash in flower Narrow-leafed ash (Fraxinus angustifolia) shoot with leaves. Fraxinus (/ ˈ f r æ k s ɪ n ə s /), commonly called ash, is a genus of plants in the olive and lilac family, Oleaceae, [4] and comprises 45–65 species of usually medium-to-large trees, most of which are deciduous trees, although some subtropical species are evergreen trees.
The commercial application of Oregon ash has been limited due to the much more abundant eastern ashes. The young and fast-growing wood of ash is more elastic and more favorable for handles and baseball bats because it has wider growth rings. The wood of old ash trees in general are valued for firewood due to their fine grain and brittleness.
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Seedling development is typically good in old fields with well-drained loamy soils. Acorn supply is one of the principal determinants of the amount of natural cherrybark oak reproduction. Other factors include microclimate, soil properties, and stand variables. Seedling development is related to overhead release, with large openings needed.
Quercus coccinea, the scarlet oak, is a deciduous tree in the red oak section Lobatae of the genus Quercus, in the family Fagaceae. It is primarily distributed in the central and eastern United States. It occurs on dry, sandy, usually acidic soil. It is often an important canopy species in oak–heath forests.
Fraxinus americana, the white ash or American ash, is a fast-growing species of ash tree native to eastern and central North America. White ash trees are threatened by the invasive emerald ash borer .