吴芋为吴茱萸属木本植物。该属植物全世界约150种,我国约25种,以西南、中南及南部省区分布最多。吴芋果实挥发油,主要成份为茱萸烯,罗勒烯,吴茱萸内脂等,还有吴茱萸酸、羟基吴茱萸碱等6种成份,还含有两种中性不含氮物质:吴茱萸啶酮和吴茱萸精以及含有吴茱萸苦素。石虎果实含吴茱萸内脂,吴茱萸精,吴茱萸次碱,羟基吴茱萸碱,尚含不饱和酮,暂称 Wu taro is a genus of Evodia woody plants. The genus is about 150 species of the world, about 25 species in China, with the highest distribution in the southwest, south central and southern provinces. Taro oil essential oils, the main components of cecropin, basil, such as Evodia, such as Evodia officinalis, Evodiamine, and other six kinds of ingredients, but also contains two kinds of neutral nitrogen-free substances: Evodia and Evodia rutaecarpa and Contains Evodia rutin. Stone tiger fruit containing Evodia lucidum, Evodia essence, rutaecarpine, hydroxyl evodiamine, still containing unsaturated ketone, tentative name