Cirsium itatiaiae is a species of flowering plant belonging to the Asteraceae family, commonly known as the thistle family. This plant is native to the Atlantic Forest region of Brazil, where it typically grows in grasslands and open areas. It is characterized by its spiny leaves and purple flowers, which attract various pollinators. The plant plays a role in its ecosystem by providing food for insects and other wildlife. Cirsium itatiaiae is also of interest for its potential medicinal properties, although further research is needed to fully understand its benefits and applications.