Flora include thorn thickets, wild blackberries, black cherry, bittersweet, sassafras, juniper and honeysuckle.
en.wikipedia.org Other scented sachets are made from the winter savory, lavender, rosemary, tops of hyssop, chippings of "cassia ligna", cedar, and sassafras.
en.wikipedia.org The essential oils within the leaf are rich in safrole, a substance also found in sassafras, which has been shown to be carcinogenic in animals.
en.wikipedia.org Attempts to refine safrole from sassafras bark in mass quantities are generally not economically viable due to low yield and high effort.
en.wikipedia.org Laboratory animals that were given oral doses of sassafras tea or sassafras oil that contained large doses of safrole developed permanent liver damage or various types of cancer.
en.wikipedia.org