Juglans nigra, are trees commonly found in riparian zones (areas in between land and streams). They are cultivated mainly for their wood, which is a rich dark color. A characteristic aspect of the trees are their fruits: large green seeds that ripen into a black color and can be peeled to reveal the edible black walnut inside. These nuts are common in baked goods! Wikipedia
You can help scientists understand how climate change is impacting this species by using the phenophase guide below to observe its lifecycle in Nature's Notebook.