Thistles are flowering plants belonging to the family Asteraceae, known for their spiky leaves and vibrant purple or pink flowers. They typically grow in temperate regions and can be found in fields, meadows, and along roadsides. Thistles are often considered weeds due to their aggressive growth and ability to spread quickly, but they also provide important habitats for various insects and birds. One of the most well-known thistle species is the Scotch thistle, which is the national emblem of Scotland. Thistles have a unique structure, with sharp spines that deter herbivores, and their flowers attract pollinators like bees and butterflies. Despite their prickly appearance, thistles play a vital role in supporting biodiversity.