Red osmanthus refers to a variety of osmanthus with red or reddish-tinted flowers and fragrant flowers. Yellow osmanthus, on the other hand, refers to another variety of osmanthus with yellow flowers or a yellow-tinted color and a strong fragrance. There is a clear difference between the two in terms of flower color. Osmanthus is one of the traditional Chinese valuable flowers, commonly used in the production of osmanthus cake, osmanthus wine and other food and drinks, with a unique aroma and flavor.