The term REDWOOD is a type of tree, specifically a species of coniferous tree in the genus SEQUOIA. SEQUOIA is a seven-letter word that is often used to refer to the same type of tree. Redwoods are native to the west coast of North America and are some of the tallest trees in the world. They are known for their longevity and can live up to 2, 000 years. Redwoods are also an important part of the ecosystem, providing habitat for many species of animals and plants.