The camellias are a fairly large group of flowering plants, several of which are of tremendous commercial and cultural importance to humans. The Tea plant (C. sinensis) is a member of this group, and, as its name suggests, its leaves are used to make tea. Several other species within the genus are also used culinarily. Oil-seed Camellia (C. oleifera), for instance, is used to produce teaseed oil. A great many camellias are also planted ornamentally, as they sport large, showy flowers.