Turmeric, Curcumin (Curcuma longa) Description of plant Turmeric (Curcuma longa) is perennial herbaceous plant that grows up to 1mt in height. Leaves of this plant are alternate, smooth, green, tapering at both ends and arranged in the pair of two. Leaves are further divided in leaf sheath, leaf blade and petiole. A false stem is arising from the leaf sheath and leaves are about 2 feet in length. This plant produces highly branched, yellow to orange colored, cylindrical and very