The term NORTH AMERICAN EVERGREEN refers to a type of tree that is native to North America and is evergreen, meaning it does not lose its leaves in the winter. One example of this type of tree is the Madrona, which is a seven-letter word. The Madrona is a species of flowering evergreen tree that is native to the Pacific Northwest region of North America. It is known for its reddish bark and its clusters of white flowers.