The odor of true Fern Extract is sweet woody, somewhat earthy, very rich and tenacious but of comparatively poor strength in perfume compositions. The inevitable solvent note is distinctly perceptible and often ruins the impression of the light, green bark like or cambial like notes which are so characteristic of true, freshly prepared Fern Extract. The plant from which the rhizome is obtained is known widely in Europe. Of the materials which are frequently used in Fougere perfume compositions are bergamot, tonka, heliotrope, violet, pine, clove, flouve, geranium, labdanum, lavender, lavandin, rose de mai absolute, rosemary, sandalwood, clary sage, oakmoss, patchouli, vanilla, vetiver and ylang ylang.