A plant is a multicellular, eukaryotic, autotrophic organism. Review the kingdoms of living things. Common names are easy to pronounce and remember, but they are confusing because of their local nature.
Scientific names are formal names accepted by scientists around the world.
Components 1 and 2 are either italicized or underlined. In order to have a definite starting point, botanists have agreed that for flowering plants the starting point shall be Linnaeus' Species Plantarum , published in 1753. The International Code of Botanical Nomenclature lists exceptions and additions to this rule. This code is supposed to keep botanists all over the world using the same system of names. However, there is disagreement over some plant groupings and today we have several proposed classification systems.