Taxonomy
Family: Oleaceae
Habitat
Calcareous woodland, often where limestone in near the soil surface. Also found on floodplains.
Associates
Acer saccharum, Carya cordiformis, Fraxinus americana, Fraxinus nigra, Fraxinus pennsylvanica subintegerrima, Juglans nigra, Ostrya virginiana, Quercus muhlenbergii, Quercus rubra, Tilia americana, Ulmus americana.
Distribution
From MN south to OK, east to VA, north to OH. A small part of Ontario in Canada.
Morphology
Small tree with a slightly narrow, irregular crown. Leaves opposite, pinnate compound, 5-11 leaflets, coarsely toothed, the lateral leaflets on short petiolules. Branchlets strongly 4-angled, quadrangular winged. Flowers perfect.
Notes
Flowers early April to mid May
Wetland indicator: Upland
This ash has a very limited range. The inner bark turns blue when exposed.
References
Farrar, J. L. 1995. Trees of the Northern United States and Canada.
Ames, Iowa: Iowa State University Press
Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
Michael Hough © 2004 |