Rapeseed has long been grown for its oil, which is still used as a lubricant and other industrial uses. It can also be used as a substitute for diesel or olive oil. Spearmint oil is used to flavor toothpastes and chewing gums, as well as other mouth-care products and pharmaceuticals. Flax is also grown as a source of fiber, but it is grown in North America mostly for its oilseed. It is one of Canada's five most valuable crops.
Floriculture is the cultivation of flowers for ornamental purposes.
Hay is grass that has been cut and dried for use as livestock feed. Tobacco is the well known drug used in cigarettes, cigars and pipes. Each State's Most Important Crop in 1998 This map indicates each state's most valuable crop in 1998. Hay is the most valuable crop in the more arid states, including Wyoming, the Great Basin and the Southwest. However, lettuce is the most valuable crop in Arizona, thanks to irrigation.