Lavandula: A plant genus of the LAMIACEAE family.Oils, Volatile: Oils which evaporate readily. The volatile oils occur in aromatic plants, to which they give odor and other characteristics. Most volatile oils consist of a mixture of two or more TERPENES or of a mixture of an eleoptene (the more volatile constituent of a volatile oil) with a stearopten (the more solid constituent). The synonym essential oils refers to the essence of a plant, as its perfume or scent, and not to its indispensability.NorbornanesDepsides: Phenolic benzoic acid esters.Mentha piperita: A plant genus of the family LAMIACEAE that is the source of peppermint oil.Aromatherapy: The use of fragrances and essences from plants to affect or alter a person's mood or behavior and to facilitate physical, mental, and emotional well-being. The chemicals comprising essential oils in plants has a host of therapeutic properties and has been used historically in Africa, Asia, and India. Its greatest application is in the field of alternative medicine. (From Random House Unabridged Dictionary, 2d ed; from Dr. Atiba Vheir, Dove Center, Washington, D.C.)Foeniculum: A plant genus of the family APIACEAE used in SPICES.Plant Components, Aerial: The above-ground plant without the roots.Plant Structures: The parts of plants, including SEEDS.