The cork oak is a tree species known for its ability to produce cork that is used in various industries. However, there are several synonyms that refer to this tree, including Quercus suber, Mediterranean oak, and cork tree. Quercus suber is the scientific name for cork oak and comes from the Latin word "suber," which means cork. Mediterranean oak is another synonym since cork oak trees are primarily found in Mediterranean regions. Lastly, cork tree is a common name for cork oak, which comes from the fact that this species is the primary source of cork in the world, making it a vital resource.