True Anise Oil is steam distilled from the dried and crushed fruits (“seeds”) of the annual herb, Pimpinella Anisum. It s a water-white or very pale yellow liquid of intensely sweet and clean odor, truly reminiscent of the crushed fruit. A very common description is that of “licorice odor”. Obviously, this is another example of circle-minded association (like the “chocolate odor of vanilla or vanillin).
Arctander, Steffen . Perfume and Flavor Materials of Natural Origin (p. 80).