Rafflesia Park where the flowers are numbered and monitored by the park rangers. "Rafflesia" are also remarkable for showing a large horizontal transfer of genes from their host plants. This is well known among bacteria, but not higher organisms. The name "corpse flower" applied to "Rafflesia" can be confusing because this common name also refers to the titan arum ("Amorphophallus titanum") of the family Araceae. Moreover, because "Amorphophallus" has the world's largest unbranched inflorescence, it is sometimes mistakenly credited as having the world's largest flower. Both "Rafflesia" and "Amorphophallus" are flowering plants, but they are only distantly related. "Rafflesia arnoldii" has
Rafflesia combination of three features of Philippine Rafflesia, namely: the shape and size of the conical process in Rafflesia schadenbergiana, the floral size and sparsely distributed perigone warts of R. speciosa, and the overall resemblance, floral size, faint scent, diaphragm and ramenta morphology of R. mira. Fourth, is Rafflesia verrucosa which is found only in Mount Kampalili in Davao Oriental Province. Research published in the journal "Molecular Biology and Evolution" revealed that one Philippine Rafflesia species from the island of Luzon, "Rafflesia lagascae" (formerly described as "R. manillana") has lost the genome of its chloroplast and it is speculated that the