Introduced in 1926. Large mouth with blue-green striations on the cheeks.
Opercle flap is black with reddish or orange border.
Body olive-green in color, dark vertical bars on sides. Pectoral fin short and rounded. Caudal fin and lower fin margins are white or yellowish with dusky spots at rear of dorsal and anal fins. Prefer lakes with rocky substrate and piles of rubble, but can be found around brushy banks and cliffs. Green sunfish will eat anything they can catch and swallow.