In botany, a section (Latin: Sectio) is a taxonomic rank below the genus, but above the species.[1] The subgenus, if present, is higher than the section, and the rank of series, if present, is below the section. Sections are typically used to help organise very large genera, which may have hundreds of species.[1] A botanist wanting to distinguish groups of species may prefer to create a taxon at the rank of section or series to avoid making new combinations that would need to be indexed by Index Kewensis.[1]