Dim sum various mixtures of flowers with green tea, black tea or oolong tea. Flowers used include jasmine, gardenia, magnolia, grapefruit flower, sweet-scented osmanthus and rose. There are strict rules about the proportion of flowers to tea. Jasmine tea is the most popular type of scented tea, and is often the most popular type of tea served at yum cha establishments. The above teas are produced in most of China. Chinese tea bushes ("Camellia sinensis") are cultivated in the mountain areas of tropical and subtropical regions or wherever there is a proper climate, sufficient humidity, adequate sunshine and fertile soil. Chinese tea
Camellia sinensis Asia, but it is today cultivated across the world in tropical and subtropical regions. Camellia sinensis is an evergreen shrub or small tree that is usually trimmed to below when cultivated for its leaves. It has a strong taproot. The flowers are yellow-white, in diameter, with 7 to 8 petals. The seeds of "Camellia sinensis" and "Camellia oleifera" can be pressed to yield tea oil, a sweetish seasoning and cooking oil that should not be confused with tea tree oil, an essential oil that is used for medical and cosmetic purposes, and originates from the leaves of a different plant.