ginger

Ginger is the rhizome of the plant Zingiber officinale, consumed as a delicacy, medicine, or spice. It lends its name to its genus and family (Zingiberaceae). Other notable members of this plant family are turmeric, cardamom, and galangal.
Ginger cultivation began in South Asia and has since spread to East Africa and the Caribbean.[2] It is sometimes called root ginger to distinguish it from other things that share the name ginger.