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Native or Introduced to Illinois: native
Natural Habit in Illinois: rich bottomland forests
Leaf: Leaves are opposite, pinnately compound, 4 to 6 inches long, 7 to 9 leaflets, narrowly elliptical, long-pointed, entire, bright green above, paler below.
Flower: Dioecious, both sexes lacking petals, occuring as panicles. Flowers appear after the leaves unfold.
Fruit: A one-winged, dry, flattened samara with a slender, thin, seed cavity, maturing September to October and dispersing over winter.
Twig: Stout to medium texture, gray to green-brown and either glabrous or pubescent, depending on variety. Leaf scars are semicircular, lacking the notched top.
Bark: Ashy gray to brown in color, with interlacing corky ridges forming obvious diamonds. Older trees may be somewhat scaly.
Size/Form/Shape: Green Ash is a deciduous, medium-sized tree with an open, irregular crown reaching about 50 feet in height.
Wildlife: Green ash is of moderate importance to wildlife. The winged seeds (samaras) are eaten by a number of birds and mammals including wild turkey and rodents. Whitetail and mule deer browse the twigs and foliage.
Recreation and Beautification: Green ash is extensively planted as a shade and ornamental tree. New clones have increased its importance in the landscaping industry.
County Distribution Map for Illinois:
Sources for the Sullivan Middle School Tree Identification Guide were obtained though the use of the following sites:
- Illinois Plant Information Network (ILPIN) @ http://www.fs.fed.us/ne/delaware/ilpin/ilpin.html#Background
- List of Woody Plants Native or Naturalized in Illinois @ http://www.inhs.uiuc.edu/~kenr/woody.html
- Tree Species @ http://ostermiller.org/tree/species.html
- Index to Eastern/Central Trees @ http://www.arborday.org/trees/ECtreelist.html
- ISU Forestry Extension Identification of Common Trees of Iowa @ http://www.extension.iastate.edu/Pages/tree/
- Key to Leaves of Virginia Trees @ http://www.fw.vt.edu/dendro/forsite/key/intro.htm
- List of Native Trees for Use Along Roadsides in Illinois @ http://www.inhs.uiuc.edu/~kenr/treetable.html
- The PLANTS Database @ http://plants.usda.gov/
The information below is from the National Arbor Day Foundation. This information can be viewed in the original (source) form by visiting The National Arbor Day Foundation at http://www.arborday.org.
Sun Exposure: This ash does well in Full sun.
Soil Type: The Green Ash grows in acidic, alkaline, loamy, moist, clay, sandy, wet, well-drained, wide range of soils. T
Moisture: It prefers wet soil conditions, and has slight drought tolerance.
Growth Rate: This tree grows at a fast growth rate.
Hardiness Zones: 2 - 9
The Black Walnut can be expected to grow in the temperature extremes of the zones shown in color in this arborday.org hardiness zone map.