Citron
There are also a number of citron hybrids; for example, ponderosa lemon, the lumia and rhobs el Arsa are known citron hybrids, some are claiming that even the Florentine citron is not pure citron, but a citron hybrid.
Bichon au citron
The bichon au citron is a French pastry. It is similar to a turnover in size, shape, and that it is made of puff pastry. A major distinguishing feature is that it is filled with lemon curd. The outer layer of sugar is sometimes partially caramelized.