4. Chlorophyll Kid
Chlorophyll Kid was born Ral Benem on the planet Mardru. As a child, he accidentally fell into a tank of hydroponic serum which gave him the power to stimulate plant growth. He can grow seeds into full grown plants in a second. Ral can also direct the growth of vines so that they wrap around a person, trapping them. He has also claimed that he can talk to plants, but this was proven a lie when he tried out for the Legion of Superheroes, who then rejected his membership application after they decided his powers couldn't possibly help them in missions.