The plant family Solanaceae provides many products used by human beings for food, drugs and enjoyment. The family includes edible species such as the potato, tomato, and eggplant (aubergine) and a host of minor fruit crops. Medicinal plants such as deadly nightshade, jimson weed, tobacco, and henbane are the sources of drugs such as atropine, hyoscine, nicotine and other alkaloids. Solanaceae species of horticultural importance include petunia, floripondio, velvet tongue, and butterfly flower. Species such as tomato, potato, tobacco, and petunia are important experimental organisms in genetics and molecular biology.