Quercus Mongolica, also known as Mongolian oak, is a large deciduous tree that is native to East Asia. It is a common sight in China, Japan, and Korea, and is known for its sturdy and durable wood. There are several synonyms that are used to refer to Quercus Mongolica, including Quercus crispula, Quercus mongolica var. crispula, and Quercus serrata var. crispula. Each of these synonyms may have slightly different characteristics or be found in slightly different regions, but they all refer to the same species of tree. Quercus Mongolica is an important species in its native range, providing timber, fuel, and habitat for wildlife.