Roselle, also called rosella, Jamaican sorrel, or java jute, (Hibiscus sabdarifa), plant of the hibiscus, or mallow, family (Malvaceae). Roselle is probably native to West Africa and cultivated for the edible external portion of its flower (calyx).
Roselle tea is ruby red in color and has a sour taste, it is also known as sour tea and has a flavor similar to #cranberry. This tea can be consumed hot or cold depending on your preference like most other teas. It is low in calories and caffeine-free.