This material is better known under the name from its producing country: absolu de chevrefeuille. It is produced by extraction of the flowers of Lonicera Caprifolium and other Lonicera species. The plant is a climbing vine and is well known all over the world as far north as Scandinavia and south to South Africa, mainly in the temperate zones. The flowers are extracted with petroleum ether to yield a concrete which, in turn, is further processed into an absolute by the conventional alcohol washing method. tsca definition 2008: extractives and their physically modified derivatives. lonicera caprifolium, caprifoliaceae.