Bright yellow ripening sunflower flower with a green petal defect in the core. sunflower hat, close up view. Summer vertical background. hat; floral; bright; flora; leaf; close up; mobile; vertical; summer; plant; color; wrong; orange; sun; nature; ripening; field; natural; colorful; circle; blooming; green; macro; vibrant; crop; meadow; round; strange; sunflower field; gardening; plantation; no people; large; grow; farming; gold; head; stamen; pattern; sunlight