4.1/5 – (7 votes) Rafflesia is a genus of flowering plant consisting of twenty-eight species. For example, Rafflesia keithii, Rafflesia kerrii, Rafflesia arnoldii, Rafflesia hassetii, Rafflesia manillana etc. The most remarkable species is Rafflesia arnoldii which is the world’s largest single blooming flower. It has a diameter of three feet (0.914 metre) and can weigh … Continue reading Rafflesia Arnoldii : The World’s Largest Flower