| Citrus × jambhiri | |
|---|---|
|  | |
| .jpg.webp) | |
| Flower of Citrus × jambhiri | |
| Scientific classification  | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Rosids | 
| Order: | Sapindales | 
| Family: | Rutaceae | 
| Genus: | Citrus | 
| Species: | C. × jambhiri | 
| Binomial name | |
| Citrus × jambhiri Lush. | |

Rough lemon (Citrus × jambhiri Lush.) is the fruit and the tree of a citrus hybrid. Like the rangpur, it is a cross between mandarin orange and citron.
Rough lemon is a cold-hardy citrus and can grow into a large tree.
The rough lemon is mostly rind, making it less edible than other citrus. As a result, the rough lemon is mainly used for citrus rootstock,[1] however areas of South Africa and India do consume it. There are several cultivars of rough lemon that can serve as a citrus rootstock, including 'Florida',[2] 'Schaub',[3] and 'Vangassay' rough lemon.[4] The process for using the rough lemon as a citrus rootstock would start with mashing up the rough lemons. The mashed up rough lemons would then be put in a furrow, which is a long trench. This yellow mash would produce seedlings, which would end up growing into orange or grapefruit trees through shield budding, also known as T budding.[1]
References
- 1 2 McPhee, John (1967). Oranges. New York: Farrar, Straus and Giroux. ISBN 978-0-374-51297-2. OCLC 934108.
- ↑ Florida Rough lemon at Citrus Variety Collection website.
- ↑ Schaub Rough lemon at Citrus Variety Collection website.
- ↑ Citrus rootstocks at Citrus Variety Collection website.
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