Quercus mongolica var. crispula is a variety of oak tree native to East Asia, particularly found in regions like Mongolia and China. It is characterized by its distinctive, wavy-edged leaves, which can vary in size and shape. This tree typically grows in mixed forests and can reach heights of up to 20 meters. The bark of Quercus mongolica var. crispula is generally dark gray and becomes rough with age. This variety is valued for its timber, which is used in construction and furniture making. Additionally, it plays a role in local ecosystems by providing habitat and food for various wildlife species.