5. Groot
Though Groot’s ability to regrow himself into Baby Groot after dying in Guardians of the Galaxy Vol. 1 points to his—like some real-world plants—being capable of asexual reproduction, most everyone in the MCU (and James Gunn) have gendered the character as male. As a teen, Groot is immediately one of the most insufferable male trees on the list, but his position could change as he matures.
