It is a common name used for several different plants. One is the verbascum giganteum, from Scrophulariacae family, which also receives the names of donkey ears, great mullein or twisting. Another is the Hyoscyamus niger, also known as locoweed or black henbane, jusquiamo, belenyo, henbane. The Solanaceae family and has high levels of alkaloids like atropine and scopolamine. It is used in the treatment of epilepsy and insomnia. There is another plant that also receives the name of belesa, and its scientific name is Plumbago europeae, of the family Plumbaginaceae. Other common names: dental, dentalaria, cancer, matapeces, mount or plumbago tobacco herb. A common characteristic of them is they are temperate and found in Europe and North America.