seed, one of the worlds major oil-bearing seeds, is obtained from the sunflower, a hardy drought-resistant plant well suited to the colder or arid areas where many other oilseed... crops cannot be grown. Although primarily used as a source of vegetable oil, sunflower seed also is eaten as an edible snack nut and used in bird feed mixtures. The varieties... of sunflower seeds grown in the United States for bird feed and human food have a larger kernel than those grown for oil. Flaxseed produced in the United States (except that used...