Curcuma longa L. is a plant in the ginger family, belonging to the genus Curcuma. Its rhizomes are well-developed, clustered, and have many branches, forming an elliptical or cylindrical shape; Leaves are oblong or elliptical in shape; The stem is extracted from the top leaf sheath; The spike shaped inflorescence is cylindrical in shape; The bracts are oval or oblong in shape, with a light green color; The corolla is light yellow, and the ginger yellow flower period is in August. The medicinal name of "turmeric" was first recorded in the "Newly Revised Materia Medica", referring to various plants in this genus. It was later identified as this species in the Qing Dynasty and evolved into the mainstream variety of "turmeric".

Ginger is a perennial herb of the genus Zingiberaceae. Rootstock with yellow-green flowers and a pungent fragrance. The plant height is 0.5-1 m; the rhizome is thick, branched, aromatic and spicy. Leaf blade lanceolate or linear-lanceolate, glabrous, sessile; ligule membranous. Total pedicel up to 25cm; spikes cone-shaped; bracts ovate, pale green or margins pale yellow, apically pointed. The roots are used for medicinal purposes, and fresh or dried products can be used as cooking ingredients or made into pickles and sugar ginger. Aromatic oil can be extracted from stems, leaves and rhizomes, which can be used in food, beverage and cosmetic spices.