Fraxinus quadrangulata (Blue ash): Ecology

Habitat: This species is the most drought-resistant of the eastern ashes, and is usually found on dry, limestone uplands and hillsides, but also grows on floodplains.

Diseases: This tree is susceptible to most pest and diseases common to ashes, including ash borer, leaf spot, powdery mildew, caterpillars and aphids.

Distribution: This ash is native to the oak and hickory forests of the midwest and parts of Kentucky and Tennessee, although nowhere is it abundant. It grows in the southeastern part of Iowa in Lee and Des Moines Counties on dry bluffs overlooking the Mississippi and Des Moines Rivers.