Explain why binomial nomenclature is used to name plants?

Binomials consists of the Genus name and the specific epithet. thus, by just looking at it we see informations about the plant species. First, we will know that it belongs to that particular genus and therefore has the diagnostic characteristics of that particular genus. the specific epithet is an "adjective" that describes the species (usually). For example,longifolia means the species has large leaves or albusmeaning white.