Flora colossus

Flora colossus is a genus of plant-like organisms native to the planet X. It is unknown how many species there are in this group, but the most noteworthy individual from this genus is Groot, a member of the Guardians of the Galaxy.

Biography
To be added

Characteristic traits
Groot, who is the only member of this genus to be encountered as of now, is humanoid in stature with a thick, robust body structure that makes him almost invulnerable to physical harm. He also possesses enhanced strength, and it is implied that he is quite intelligent. Other abilities include a highly-accelerated healing factor, and the ability to extend portions of his body.

Trivia

 * In the comics, the Flora colossus was chronologically the first alien race to be introduced in the Marvel Universe.