Protorhus longifolia, the red beech, is a medium to large, mostly dioecious species of tree in the Mango family. It is native to South Africa and Swaziland, where it occurs in well-watered situations from coastal elevations to 1,250 m. The leafy, evergreen trees have rounded crowns and usually grow between 6 and 10 m tall, but regularly taller in forest.