Fava beans, also called broad beans, are a springtime crop cultivated and enjoyed worldwide. During growth, tiny fava beans grow on a flowering plant's large bumpy green pods until they are harvested in the spring. Ripe fava beans are bright green and have tough clear skin that's removed before eating. While removing the skin from fava beans is labor-intensive, it's well worth the effort. Many fava beans on shelves, especially the dried varieties, already have the skin removed.
Lima beans, also called butter beans and siva beans, are similar to fava beans in many ways. They are available fresh, frozen, dried, and sold in young and mature forms. Like fava beans, baby limas have a skin that surrounds the bean. However, depending on how you plan to use them, a lima bean's skin can be removed after cooking or left intact.