Artichoke

• The artichoke's leaves are used in innumerable recipes and even used as small, edible, serving platters for appetizers. When you buy an artichoke, you'll notice that you're purchasing the top-most part of the plant (called the flower) that has been severed from its stalk. The artichoke flower isn't separated into petals but into oval-shaped leaves that overlap one another.
  
  

Onions and Garlic

• Without garlic and onions, many of our favorite dishes would lack flavor. What most people don't realize is that the surrounding the bulb of these plants are actually their leaves. Commonly referred to as its layers, the section of the onion that can be peeled back are leaves that store sugar and other nutrients for the plant. Garlic is a relative of the onion and also has hard-packed leaves that form its cloves surrounding the bulb.
  
  

Cabbage and Lettuce

• Cabbage and lettuce are examples of plants whose edible parts have been labeled correctly by common language. When you separate the head of lettuce and cabbage for a salad, you are usually aware that you're taking apart the leaves. There are many different varieties of both cabbage and lettuce.
  
  

Other Edible Leaves

• Many plants have leaves that you can incorporate into your diet. Some of these plants include, but are not limited to, cauliflower, celery, okra, radish, sweet potatoes, beets, lima beans and broccoli.