The petal arrangement of this flower is rather unusual. Normally, the petals of a flower are smaller and concentrated more closely together. In this case however, the yellow petals are abnormally large, and spread out relatively loosely. Due to the large size of the petals, the internal part of the flower is in the shadow, and seems to be getting enveloped by the petals. Also, interestingly, the petals form a sort of infinite staircase. If you start at any petal any go anti-clockwise, you will notice that you will only have to climb, never descend. Naturally, the reverse is true if you go clockwise. This is another feature of this flower that makes it unique and engrossing.