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
Mount Kinabalu The orchids are the best-known example with over 800 species including some of the highly valued "Paphiopedilum" slipper orchids, but there are also over 600 species of ferns (more than the whole of Africa's 500 species) of which 50 are found nowhere else, and the richest collection in the world for the "Nepenthes" pitcher plants (five of the thirteen are found nowhere else on earth) which reach spectacular proportions (the largest-pitchered in the world being the endemic "Nepenthes rajah"). The parasitic "Rafflesia" plant, which has the largest single flower in the world, is also found in Kinabalu (particularly "Rafflesia keithii"