Quercus lobata is commonly known as the valley oak, and it is a deciduous tree species found in the western United States. It is a large tree that can grow up to 100 feet tall with a broad, spreading crown. Valley oak is an important species in many ecosystems as it provides habitat and food for many wildlife species. Some synonyms for Quercus lobata include California white oak, swamp oak, and bottomland oak. In addition, it is sometimes referred to as the roble de la isla in Spanish. This tree species has significant cultural and ecological importance, and it is vital to ensure its conservation and protection for future generations.