What is another word for blue oak?
Pronunciation: [blˈuː ˈə͡ʊk] (IPA) 
Blue oak, also known as Quercus douglasii, is a species of native oak tree found in the western United States. Synonyms for this tree include iron oak, rugged oak, hardy oak, scrub oak, and black oak. Its bark is a light grayish-blue color, hence the name blue oak. The leaves are lobed and have a unique blue-green color. The blue oak is well adapted to hot and dry climates, making it a common tree in California's oak savannas and woodlands. It is also important for wildlife, providing habitat and food for a variety of animals, including acorn woodpeckers, western bluebirds, and squirrels.
