Rosemary (Rosmarinus officinalis) is an evergreen shrub with needle-like leaves and a woody aroma.
Though best known as a food seasoning, it is one of the most popular aromatic and medicinal plants worldwide.
Rosemary’s essential oil — which holds the plant’s core components, or essence — is extracted and sold in small bottles. Despite its name, it is not a true oil, as it doesn’t contain fat.