Fraxinus mandshurica - Plant Finder - Fraxinus nigra mature spread
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Black Ash is a long-lived medium size native deciduous tree growing 30 to 50 feet in height with a narrow rounded crown of upright branches which are usually restricted to the upper part of the trunk on mature trees. The bark is gray, smooth. Fraxinus nigra, the black ash, is a species of ash native to much of eastern Canada and the However, since that time this invasive insect has spread throughout most of the tree's range, and within a few years black ash is expected to be all.