Rafflesia arnoldii which then pollinate the rare plant. It is not to be confused with the titan arum, "Amorphophallus titanum", which is also commonly referred to as the "corpse flower" because of its repulsive odor. "Rafflesia arnoldii" is rare and fairly hard to locate. It is especially difficult to locate the flower in forests, as the buds take many months to develop and the flower lasts for just a few days. The flowers are unisexual and thus proximity of male and female flowers is vital for successful pollination. These factors make successful pollination a rare event. When "Rafflesia" is ready to reproduce,
Rafflesia philippensis Rafflesia philippensis Rafflesia philippensis is a parasitic plant species of the genus "Rafflesia" that was named by Blanco in his Flora de Filipinas in 1845. "R. philippensis" is known only from a mountain located between the provinces of Laguna and Quezon, Luzon where it was first discovered. Its plant host is "Tetrastigma pisicarpum". This species went unnoticed since its first description by Blanco but was rediscovered in 2003 by members of the Tanggol Kalikasan, a local environment conservation group in Quezon province who first saw and photographed the open flower of this species. It was brought to the attention of