Anomaly? ...or art?

This is a flower of Wild carrot - Daucus carota - whose common names include bird's nest, bishop's lace etc. As you see, their flowers are arranged into a flat umbrella-like head. But this one is not an ordinary flower of wild carrot! It has, exactly in its center, a small red flower! How do you think - is it an anomaly or is it an art of mother nature?