The Mustard plant, also known as Brassica juncea, is a popular spice that is used all around the world. It is also called mustard greens, Indian mustard or Chinese mustard in different regions. The term mustard plant primarily refers to the plant's seeds that are used to make mustard sauce, but other parts of the plant are also used for various purposes. In some areas, mustard plant is called brown mustard, oriental mustard, or leaf mustard. Some other common synonyms for mustard plant include mustard spinach, Sarepta mustard, and tumbling mustard. Regardless of the name used, this plant is a versatile and flavorful addition to any kitchen.