HORTICULTURE

Detailed explanation-1: -In this image of an iceberg lettuce cut in half, you can see how the leaf blades are packed and folded together tightly in the lettuce head. Lettuce is an example of a plant shoot with very short internodes on the stem .

Detailed explanation-2: -Vegetables are usually grouped according to the portion of the plant that is eaten such as leaves (lettuce), stem (celery), roots (carrot), tubers (potato), bulbs (onion) and flowers (broccoli).

Detailed explanation-3: -Lettuce, a type of leafy green, is one of the most commonly eaten veggies in the United States. Leafy greens can be either dark or light in color and include types such as spinach, romaine, kale, escarole, and endive.