A flower typically consists of several key parts, including the petals, sepals, stamens, and pistils. The petals are often colorful and attract pollinators, while the sepals protect the flower bud before it blooms. The stamens are the male reproductive parts, producing pollen, and the pistils are the female reproductive parts, containing the ovary where seeds develop. Flowers can vary greatly in structure and size, depending on the species. Some flowers have a simple structure, while others, like orchids, have complex arrangements. Understanding flower structure is essential for studying plant reproduction and pollination processes in nature.