DC Comics Botany Expert and Supervillain

This page is the CodyCross answer for the clue below from Pet Shop, Group 360, Puzzle 3 (Waste Bag Dispenser).

Question is: DC Comics Botany Expert and Supervillain

and the answer is: POISONIVY

Word Meaning:

POISON IVY — Any of three ivy-like species of Toxicodendron, known for their ability to cause an itching rash and blistering for most people, through urushiol, an oil that is a skin irritant.

Definitions from Wiktionary.