chaenomeles

The other quince is Chaenomeles, though related, it is an oriental species, grown for flowers.

Chaenomeles is a genus of three species of deciduous spiny shrubs, usually 1-3 m tall, in the family Rosaceae.

The names "japonica" or "Japanese quince" were (and still are) often loosely applied to Chaenomeles in general, regardless of their species.

The larvae feed on Chaenomeles, Sorbus domestica and Sorbus torminalis.

Pseudocydonia sinensis (sometimes called Chaenomeles sinensis)

'Chaenomeles' is used as a food plant by the larvae of some Lepidoptera species including Brown-tail and the leaf-miner 'Bucculatricidae'.

The larvae feed on the leaves of Malus, Prunus (including Prunus americana), Populus, Tilia and Chaenomeles species.

Although all quince species have flowers, gardeners in the West often refer to these species as "flowering quince", since Chaenomeles are grown ornamentally for their flowers, not for their fruits.

The larvae feed on Chaenomeles species, Malus domestica, Malus sieboldii, Malus sylvestris, Prunus domestica, Prunus serotina, Pyrus communis and Pyrus pyrifolia.

The larvae feed on Ribes, Chaenomeles, Cotoneaster, Crataegus, Cydonia, Eriobotrya, Fragaria, Kerria, Malus, Photinia, Prunus, Pyracantha, Rosa, Rhaphiolepis, Rubus, Boronia, Choysia, Citrus and Phebalium species.

It is closely related to the east Asian genus Chaenomeles, and is sometimes placed in Chaenomeles as C. sinensis, but notable differences are the lack of thorns, and that the flowers are produced singly, not in clusters.