The Ashes - Fraxinus sp.
Leaves are opposite compound.
Iowa is well supplied with four species of ash trees. They are white , green , blue , and black . Ashes range from medium to large in size, attaining a height of from 80 to 90 feet, with the green and white ash growing the largest. They all do best on a moist soil, but can adapt to a variety of conditions. However, when planted on the heavier and drier soils its growth is retarded.