Although sage and rosemary belong to Angiospermae and dicotyledona, they are quite different from each other in subdivision. Sage belongs to the fragrant plants of sage with petal flower subclass, while rosemary belongs to the rosemary shrubs of chrysanthemum subclass.
Sage is shrubby, relatively short, with oval leaves, hairy, grayish green or white green. The cymes are purple, pink or white. The flowers have pungent fragrance, and the flowering period is earlier. Rosemary has a higher plant type, dark gray stem, hairy young branches, and the process of young branches growing into old branches is from quadrangular to cylindrical, leaves are clustered, short or sessile, flowers are opposite, and the flowering period is later.
According to the different growth habits of sage and rosemary, their growth areas are also very different. In China, sage is generally distributed along and to the south of the Yangtze River, except for the plateau and basin, and rosemary can be planted in Shandong Province, as an economic crop, in addition to most of the south.
Salvia, as a herb, its main functions include clearing away heat and detoxification, promoting blood circulation and removing blood stasis, eliminating swelling and regulating menstruation. It is mainly used to treat jaundice and dysentery, sore injury, dampness and heat, bruise injury and so on. Traditionally, it is also used for hospital disinfection. And the main medicinal function of rosemary is to calm the nerves and refresh the mind, to treat insomnia, headache, palpitation, etc.