Article from Bean's Trees and Shrubs Hardy in the British Isles
Recommended citation
'Cydonia' from the website Trees and Shrubs Online (treesandshrubsonline.
A genus which, as interpreted here, consists of only a single species – the common quince. For the three shrubby quinces described in previous editions under Cydonia, see Chaenomeles. A fifth species, the rare Cydonia sinensis, is best considered as constituting an independent genus and will be found under Pseudocydonia.