Cynoglossum is the scientific name of a plant commonly known as hound's tongue. However, there are several names that are used to refer to this plant, which are synonyms of the word cynoglossum. These include dog's tongue, gypsy flower, rat's tail, and beggar's lice. The reason for so many synonyms is that the plant has spread and taken root in various parts of the world, leading to the development of different names in different regions. Regardless of the name used, cynoglossum is known for its beautiful blue flowers and its medicinal properties as a pain reliever and anti-inflammatory agent.