Flowering Quince (Chaenomeles speciosa (Sweet) Nakai)

Also known as Chinese quince, Japanese quince; also classified as Chaenomeles lagenaria (Loisel.) Koidz., Pyrus speciosa (Sweet) M.F.Fay & Christenh.

Most authorities, including USDA PLANTS, BONAP, iNaturalist, and some primary literature published as recently as 2021, use the name Chaenomeles lagenaria (Loisel.) Koidzumi to refer to this species, but POWO instead treats it as a synonym of Maule's quince (Chaenomeles japonica) and also marks it as nom. superfl. We could not resolve these discrepancies. However, we note that all the sources we were able to find, other than POWO, used Chaenomeles lagenaria as a synonym for this species and not C. japonica. For now, we reject POWO's treatment as we found no justification for it and it seems not to be acknowledged by anyone. Even if it is technically correct (i.e. if the type specimen referred to by that name refers to the other species), it is not useful for resolving the names as used in most sources as they consistently use the name to refer to this species.