Rooibos tea, 10 benefits and side effects 1. Introduction 1) Definition and origin of Rooibos tea Rooibos tea, also known as red bush tea, is an herbal infusion made from the leaves of the Aspalathus linearis plant, which is indigenous to South Africa. The tea has a unique reddish-brown hue and a delightful nutty flavor. 2) Brief history of Rooibos tea Although Rooibos tea has been a popular bev..