Greenbrier, also known as Smilax, is a genus of climbing plants found primarily in North America. These plants are characterized by their thorny vines, heart-shaped leaves, and small, often fragrant flowers. Greenbrier typically grows in wooded areas, thickets, and along roadsides, thriving in a variety of soil types. The berries produced by Greenbrier are small and can be blue or black, attracting birds and other wildlife. While some species are edible and have been used in traditional medicine, others may cause mild gastrointestinal discomfort if consumed. Overall, Greenbrier plays a role in local ecosystems by providing food and habitat for various animals.