74. Juglands nigra – Black Walnut
Scientific Name: Juglands nigra
Nativity: Eastern North America
Native Americans used the black walnut as a laxative and treatment for intestinal parasites. Studies have found that it is actually a strong anti-fungal as well as anti-parasitic. Its wood is commercially important, as its dark, straight heartwood makes an excellent product. The fruit is used to make dyes that are used to stain cars, porches, and sidewalks. The black walnut is also allelopathic, meaning it secreted toxic chemicals through its roots to harm plants around it. This is a competitive strategy to help the black walnut prosper.
DBH: 33.4 inches