With more focus on mangrove research and increasing accessibility to molecular facilities, there have been many reports on mangrove hybrids in recent years. All three species of Indo-West Pacific Rhizophora mangroves occur in Malaysia. In 1996, the first encounter of a Rhizophora hybrid in Malaysia happened on Pulau Burung, a small uninhabited islet off the coast of Port Dickson in the state of Negeri Sembilan. The observation was on a putative hybrid between R. apiculata and R. stylosa (=R. x lamarckii), reported to dominate the islet alongside its parental species. Since then, part of the islet was cleared to make way for the construction of a walkway, and in the process revealed the presence of R. mucronata. In an effort to confirm the identity of the putative hybrid, all four Rhizophora taxa were sampled for genetic analysis. Unexpectedly, a second hybrid was discovered in the process -- one between R. mucronata and R. stylosa, which was reported for the first time. Subsequent genetic analysis demonstrated that this novel hybrid is fertile, bringing up questions on the evolution and classification within the IWP Rhizophora, specifically between R. mucronata and R. stylosa. In this study, we surveyed the composition of Rhizophora taxa on Pulau Burung and characterized the inflorescence of the taxa. Due to the scarce occurrence of Rhizophora hybrids around the world, reports on their morphological characterization are limited and are often based only on few individuals. The dominance of Rhizophora hybrids on Pulau Burung offers a rare opportunity for a comprehensive examination on the morphology of the hybrids, thus providing a better understanding of IWP Rhizophora hybrids.