Rafflesia arnoldii of Sumatra and Borneo. To help counter the over-collection of this rare plant, residents that have "Rafflesia" on their private property are encouraged to save the flowers and charge a small fee to see them. Rafflesia arnoldii Rafflesia arnoldii, commonly called the corpse lily, is a species of flowering plant in the parasitic genus "Rafflesia". It is noted for producing the largest individual flower on Earth. It has a very strong and unpleasant odour of decaying flesh, earning it the nickname "corpse flower". It is endemic to the rainforests of Sumatra and possibly Borneo. Although there are some plants with
Unplaced in APG II Samydaceae as a separate family from Salicaceae. Several genera have been removed from Rafflesiaceae, so that it now consists of only three genera: "Sapria", "Rhizanthes", and "Rafflesia". All of these are holoparasites and, as discussed below, finding their relationships by molecular phylogenetics has presented special challenges. "Rafflesia" and its relatives were the subject of several papers from 2004 to 2009, and as the world's largest flower, "Rafflesia" has attracted special interest. In 2009, Wurdack and Davis confirmed earlier work in which it was found that Rafflesiaceae is nested within Euphorbiaceae sensu stricto, a circumscription of Euphorbiaceae that excludes Phyllanthaceae, Picrodendraceae,