White flowers in September
White flowers in September - White flowers are white not because the petals contain white pigment but because tiny bubbles reflect light and appear white. The human eye can only see the visible spectrum, but insects, which are important to flowers, can see the ultraviolet spectrum and recognize it as color. Flower color is determined by residual pigments such as catheroids and anthocyanins, but in the case of white flowers, pigments are not produced from the beginning, or even if they are produced, they are broken down by enzymes and do not accumulate. Some flowers do not produce white flowers, and research conducted by the National Institute of Agrobiological Sciences has shown that sunflowers and marigolds do not have white flowers, and morning glories do not have yellow flowers.