World Seed Supply. J. L. Hudson, Seedsman. How to Germinate Seed. Flower Parts. Flower Parts A flower is a highly differentiated and specialized branch of the stem bearing modified leaves or flower parts.
It is the site of sexual reproduction in these plants and is their most distinctive structure. The great variety of forms acts as a guide in separating flowering plants into the major groups. Before we look at the different classifications of flowers, we must first learn the terms for the individual structures in the flower. Accessory Organs.