Proper labeling supports research on the history and origin of Plumeria cultivars by providing accurate identifiers for each cultivar. When researchers study the distribution and historical records of Plumeria cultivars, proper names serve as reliable references to trace the plants’ paths through cultivation history. Historical documentation often includes the cultivar’s proper name, enabling researchers to verify the authenticity and lineage of specimens in their studies. Additionally, proper labeling helps establish a link between ancient or traditional cultivars and their modern descendants, shedding light on the development and evolution of Plumeria hybrids over time. By preserving the historical significance of cultivars through proper labeling, researchers can contribute to a comprehensive understanding of Plumeria’s cultural heritage and the global spread of these beautiful flowers.