Antiandrogens in the environment which are members of the cabbage family. The compound N-butylbenzenesulfonamide (NBBS) isolated from the bark of "Prunus africana", the Subsaharan red stinkwood tree, is a specific androgen antagonist and has been used as alternative medicine in benign prostatic hyperplasia. Licorice, or "Glycyrrhiza glabra" native to southern Europe, India, and parts of Asia has shown antiandrogen activity in male rats. Antiandrogens in the environment Antiandrogens in the environment have become a topic of concern. Many industrial chemicals, including phthalates and pesticides exhibit antiandrogen activity in animal experiments. Certain plant species have also been found to produce antiandrogens. In animal studies, environmental
Phyllostegia glabra Phyllostegia glabra Phyllostegia glabra is a species of flowering plant in the mint family known by the common name ulihi phyllostegia. It is endemic to Hawaii. One variety of this species, var. "lanaiensis", is federally listed as an endangered species of the United States. It is a perennial herb with reddish or red-veined green leaves and white or white-tinged flowers. It differs from the variety "glabra" in the size of its sepals and leaves. The rare variety "lanaiensis" has not been seen since a single specimen was recorded on Lanai in the 1980s. It may still exist on the island,