A seed oil plant. A subspecies of rapeseed is the canola seed, which has no erucic acid in its oil.
The seed of Brassica campestris and other Brassica species, whose oil is used in the manufacture of lubricants and canola oil. The oil made from the seeds of the variety high in erucic acid is used as an industrial lubricant. Oil made from the seeds of the low-erucic-acid variety is relatively low in saturated fat and is commonly known as canola oil.