Don’t confuse the plantain plant with the banana like tasting plantain that grows in mostly tropical regions of the world. Humans have consumed the plantain plant for thousands of years for both sustenance and medicinal purposes. Plantain plants grow in humid environments, such as those found within bogs and marshes. You can also find the rugged plant in alpine regions. The leaves sprout to reach four inches wide and six inches long. Plantain plants provide copious amounts of calcium, as well as vitamins A and C.