Variations in floral structure.
Symmetry. In bilateral symmetry, the flower can be divided into two equal parts by a single imaginary plane. In radial symmetry, the floral organs radiate out from a center.	Ovary Position. A superior ovary is located above the stamens, petals, and sepals; an inferior ovary is located below them.	Floral Distribution. Some flowers are clustered into an inflorescence. A sunflower is a composite flower composed of many disk and ray flowers.