Rough lemon
Rough lemon is the fruit and the tree of a citrus hybrid, like the rangpur a cross between mandarin orange and citron.
Rough lemon is a cold-hardy citrus and can grow into a large tree.
There are several cultivars of rough lemon that can serve as a citrus rootstock, including 'Florida', 'Schaub', and 'Vangassay' rough lemon.
