Groot is a fictional character appearing in American
comic books published by Marvel Comics. Created by Stan Lee, Larry
Lieber and Jack Kirby, the character first appeared in Tales to Astonish
#13 (Nov. 1960). An extraterrestrial, sentient tree-like creature, the
original Groot first appeared as an invader that intended to capture
humans for experimentation. The character can only say the repeated line
"I am Groot", but has different meaning.