Woodrue, sometimes called the Plant Master, uses his advanced botanical knowledge to control plant growth in an attempt to take over the world. Woodrue is an exile from an interdimensional world (Floria) inhabited by dryads. Jason Woodrue first appears in The Atom #1 (June–July 1962). He became known as 'Floro' and a superhero, in The New Guardians.
His Seeder appearance first appeared in Swamp Thing #21. His Floronic Man appearance first appeared in the Green Lantern backup in Flash #245. He first appeared as an enemy of the Atom in Atom #1 and was created by Gardner Fox and Gil Kane.
