Sunflowers
The oil extracted from Sunflower seeds, is used for cooking, as a carrier oil and is used to produce biodiesel. The meal remaining after the seeds have been processed for oil is used as a livestock feed. Some recently developed varieties have drooping heads. These varieties are less attractive to gardeners growing the flowers as ornamentals, but appeal to farmers, because they reduce bird damage and losses from some plant diseases.Photo credit: Bruce Fritz (USDA)