Plumeria species and cultivar names are documented in official registries managed by botanical organizations and horticultural societies. The International Plant Names Index (IPNI) and the International Cultivar Registration Authorities (ICRAs) are reputable databases that store plant names and provide standardized nomenclature for the scientific community. In the case of Plumeria, the Plumeria Society of America (PSA) maintains the Plumeria cultivar registry. These registries ensure that each name is unique, properly described, and accurately associated with the respective plant. Proper documentation and registration facilitate plant identification, research, and sharing of knowledge within the horticultural and botanical communities.