The flower with the world’s largest bloom is the rafflesia, which grows in the rain forests of Indonesia. It can grow to be 3 feet (0.91 meters) across and weigh up to 15 pounds (6.8 kilograms). It is a parasitic plant, with no visible leaves, roots, or stem. It attaches itself to a host plant to obtain water and nutrients.
When in bloom, the rafflesia gives off a repulsive odor, similar to that of rotting meat. Although people do not want to come near it, the strange odor attracts insects that pollinate the plant.