Rhus is a genus of flowering plants in the family Anacardiaceae, commonly known as sumac. These plants are found in various regions around the world, particularly in temperate and subtropical areas. Rhus species can be shrubs or small trees, and they are known for their clusters of small, often red or yellow berries, which are used in cooking and traditional medicine. Some species of Rhus, like Rhus typhina (staghorn sumac), are popular in landscaping for their attractive foliage and vibrant fall colors. However, caution is advised, as some members of the genus can cause skin irritation due to the presence of urushiol, a compound also found in Toxicodendron radicans (poison ivy).