Groot is a fictional character from the Marvel Comics universe, primarily known as a member of the Guardians of the Galaxy. He is a tree-like creature, part of a species called Flora colossi, and is recognized for his ability to regenerate and grow in size. Groot communicates using the phrase "I am Groot," which can convey different meanings depending on his tone and context. In the Guardians of the Galaxy films, Groot is portrayed as a loyal companion to Rocket Raccoon and the other team members. His character is often depicted as gentle and caring, despite his intimidating appearance. Groot's unique abilities and personality make him a beloved character among fans of the franchise.