Cnicus is a plant genus in the family Asteraceae, commonly known as thistles. There are various synonyms for this word, including Serratula, Carduus, and Carthamus. These plants are characterized by their prickly leaves and stems, often found growing in fields or along roadsides. Thistles have played a significant role in various cultures and have been used for medicinal purposes and food. Some species of this genus are also used in herbal teas and supplements. Despite their medicinal properties, thistles are often considered as unwelcome weeds in gardens and landscapes. Regardless of their reputation, the different species of cnicus remain a fascinating subject.