An epithet is a name. In taxonomic nomenclature, it is a word or phrase (epithet) in the name of an organism. It can be:
a specific epithet: the second part of a species name in binomial nomenclature in any branch of biology in botany, the second part of a botanical name Specific epithet (zoology), also called the specific name, meaning the second part of the species name or binomen a genus, epithet a subgenus, epithet in botanical nomenclature: a Section (botany), epithet a Series (botany), epithet a variety (botany), epithet a forma (botany), epithet in horticulture: a cultivar, epithet a cultivar group epithet, for plants within a species that share characteristics a grex (horticulture) epithet for cultivated orchids, according to their parentage