beautiful sunflower head and its stem with leaves, at sunset.

agriculture annuus asteraceae beautiful bloom blossom botanical botany bracts common cultivate disk female field flora floral florets flower flowers focus green grow hairy head helianthus heliotropism inflorescence leaf leaves male natural nature petal phase phyllaries plant pollen pollination ray receptive seasonal selective stamen stem sterile stigmata summer sunflower sunny sunset unopened vibrant yellow