The genus Cydonia belongs to the Rosaceae family and includes a few species commonly known as quinces. Although the name of the genus is specific, there are several synonyms that can be used instead of Cydonia. Among the alternatives are Cydon and Pyrus cydonia, both of which were previously used as the scientific name for this genus. Moreover, some botanists group quinces in a broader genus called Chaenomeles, which includes a few other species of shrubs and small trees. As a result, quinces may also be known as Chaenomeles japonica or Chaenomeles speciosa.