Glycyrrhiza lepidota in the spring which ripen in the fall to clusters of burs which contain pods of small bean-like seeds. It can be used as a pioneer species to revegetate bare or disturbed ground and is often the first species to invade a receding alkali flat. There is a market for American licorice root both for medicinal uses and flavoring; also the sweetening of tobacco products. Glycyrrhiza lepidota Glycyrrhiza lepidota (American licorice) is a species of "Glycyrrhiza" (a genus in the pea/bean family, Fabaceae) native to most of North America, from central Canada south through the United States to California, Texas
Plant sources of anti-cancer agents podophyllotoxin which is found in "Podophyllum peltatum" (May Apple). Chemicals extracted from clippings of "Taxus brevifolia" (Pacific yew) have been used as the basis for two chemotherapy drugs, docetaxel and paclitaxel. Contains ingenol mebutate (Picato) which is used to treat skin cancer Trastuzumab emtansine (Kadcyla) is an antibody conjugated to a synthetic derivative of the cytotoxic principle of the Ethiopian plant "Maytenus ovatus". It used to treat breast cancer. Plant sources of anti-cancer agents Plant sources of anti-cancer agents are plants, the derivatives of which have been shown to be usable for the treatment or prevention of cancer in humans.