Rough lemon
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.
| Citrus × jambhiri | |
|---|---|
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| 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 is a cold-hardy citrus and can grow into a large tree.
The rough lemon is ninety per-cent rind, making it borderline inedible. As a result, the rough lemon is mainly used for citrus rootstock.[1] 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
- 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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