Rosemary (Rosmarinus officinalis) is an evergreen herb or the family Labiatae, native to the Mediterranean, but long cultivated in England. It has erect or ascending branches which are pale green and downy when young, later brown and woody. The leaves are opposite, simple, leathery, linear, dark green above and white-felted below. The flowers are two-lipped, bluish in colour and grow in short axillary or terminal racemes. Research Rosemary