4. Orris roots
Some linguists have suggested that Orris is in fact just a corrupted version of the word Iris. You can use three species of Iris to produce Orris roots. The species used for commercial products include the German Iris, Iris pallida, and Iris florentina.
Despite what their name might have you believe, Orris roots are actually rhizomes. These rhizomes are usually brown with a wood-like appearance. The scent of an Orris root has a resemblance to that of violets. To achieve the best scent of an Orris root, you should dry it out for at least three years.
After aging the Orris root, it is grounded into powder form then distilled with steam to get it into oil form. This oil is sometimes referred to as Orris butter. Orris oil has been used in everything from gin to cosmetics and of course perfumes. There is also an abundance of health claims made for the Orris root, though none have been proven.