sunflower close-up detailing the sunflower disk and the ray and tiny disk flowers or florets in bw black and white

abstract agriculture and background beautiful beauty black bloom blooming blossom bright circle close closeup color compose contrast decorative design detail detailing disk element elements emphasising flora florets flower flowers fresh garden head helianthus heliotropism isolated leaf macro magnification natural nature pattern petal photo plant pollen ray round single summer sun sunflower sunshine texture tiny tropism which white