A flower is composed of four main parts: the STEM, petals, sepals, and STAMEN. The STEM is the part of the flower that connects the roots to the other parts of the flower. Petals are the colorful, often fragrant parts of the flower that attract pollinators. Sepals are the green, leaf-like structures that protect the flower bud before it blooms. Finally, the STAMEN is the male reproductive organ of the flower, which produces pollen.