An Oregon Oak, scientifically known as Quercus garryana, is a native, deciduous hardwood tree of the Pacific Northwest (Oregon, Washington, BC, N. California) and is also called the Garry Oak; it's a keystone species known for its broad, lobed leaves, acorns with shallow caps, and crucial role in supporting diverse wildlife, though its habitat has significantly declined due to land conversion, making it a symbol of regional biodiversity and history.