“…Species-differentiating characters used in this study to delimit distinction between species includes flower size, pattern of perigone lobes, pattern of diaphragm, pattern of window, size of aperture, number of processes, ramenta, and number of anthers. The application of flower differences have been widely used to differentiate between species in other groups of flowering plants for example in Magnoliaceae (Chen & Zeng, 2013), Hyacinthaceae (Uzunhisarcıklı et al, 2013), and Orobanchaceae (Zare & Dönmez, 2013 Diagnoses: This species is similar to Rafflesia azlanii by the perigone lobes covered by rows of coalesced white warts. It is different from Rafflesia azlanii by the absence of marginal ring of white warts on the periphery of the window, more rows of coalesced white warts on the perigone lobes, higher number of concentric rings of white warts on the window, larger number and rings of circular dots on the diaphragm, larger number and rings of processes on the upper surface of the disc, and more anthers (see Table).…”