Citron in the arcade game Plants vs. Zombies is a plant that attacks zombies by shooting powerful plasma balls. Citron is a simple orange from the future that has turned into a futuristic bounty hunter and travels through time to help plants end their zombie feud. This plant is the orange-colored fruit of the Citron with green leaves, blue eyes, and green eyebrow-like appendages. The Plants vs. Zombies cursor and game pointer with Citron!