Angelica: A plant genus of the family Apiaceae.Angelica sinensis: A plant species of the family APIACEAE that is the source of dong quai.Angelica archangelica: A plant species of the family Apiaceae that contains COUMARINS.ChalconeMentha: Mentha is a genus of the mint family (LAMIACEAE). It is known for species having characteristic flavor and aroma.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.)Drugs, Chinese Herbal: Chinese herbal or plant extracts which are used as drugs to treat diseases or promote general well-being. The concept does not include synthesized compounds manufactured in China.Plant Extracts: Concentrated pharmaceutical preparations of plants obtained by removing active constituents with a suitable solvent, which is evaporated away, and adjusting the residue to a prescribed standard.Phthalic Anhydrides: Phthalic acid anhydrides. Can be substituted on any carbon atom. Used extensively in industry and as a reagent in the acylation of amino- and hydroxyl groups.Phytotherapy: Use of plants or herbs to treat diseases or to alleviate pain.Oenanthe: A plant genus of the family APIACEAE that is sometimes called Hemlock Water Dropwort but should not be confused with HEMLOCK. It contains enanthotoxin.Plant Roots: The usually underground portions of a plant that serve as support, store food, and through which water and mineral nutrients enter the plant. (From American Heritage Dictionary, 1982; Concise Dictionary of Biology, 1990)Benzopyrans: Compounds with a core of fused benzo-pyran rings.Astragalus Plant: A plant genus in the family FABACEAE, subfamily Papilionaceae, order Fabales, subclass Rosidae. Many of the species are associated with poisoning of grazing animals. Some of the species are used medicinally.