King Cobra is a new iceberg lettuce variety. This variety adapts to summer planting in San Benito and Monterey counties. The frame and head size is slightly larger than King Royal (EXP 32), which adapts to the same planting slots. The plant color is lighter green having stronger savoyed leaf surface. King Cobra strong characteristics include a strong resistance to interior tip burn and bolting. This variety possesses three quarter cap leaf coverage and sure-heading abilities under extreme high temperatures.