I'm coming up with a list of heroes and villains of the DC Universe who are either connected to the Green or the Red or at the very least have powers revolving around plants or animals.

Plant Themed Characters:
Swamp Thing
Floronic Man
Poison Ivy
Blackbriar Thorne
Black Orchid
Solomon Grundy

Animal Based Characrers:
Animal Man
Beast Boy
Vixen
Aquaman
B'Wanna Beast