Botanical nomenclature is the system used to name and classify plants. It follows specific rules set by international codes, ensuring that each plant has a unique and universally accepted name. This system helps scientists and researchers communicate clearly about different species, avoiding confusion caused by common names. The naming convention typically includes a genus name followed by a species identifier, such as in Rosa rubiginosa, where "Rosa" is the genus and "rubiginosa" is the species. This structured approach allows for the identification and classification of the vast diversity of plant life on Earth.