Shangjuan
The shangjuan, or Ichang lemon (Citrus cavaleriei × C. maxima), is a cold-hardy citrus fruit and plant originating in East Asia.
| Shangjuan, Ichang lemon | |
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| Ichang papeda, parent species | |
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| Species: | C. cavaleriei × C. maxima |
| Binomial name | |
| Citrus cavaleriei × Citrus maxima | |
According to some it is the best bet for cold-hardy citrus with edible fruit.[1] It is believed to be a hybrid of pomelo and Ichang papeda and thus may also be called Ichang pomelo.[2]
Description
Shangjuan forms a shrub or small tree, which is commonly thorny. Leaves are notable for a large petiole, resembling those of the related Kaffir lime and Ichang papeda, and are fragrant. The large fruit has a flavor resembling a mixture of lemon and grapefruit, and is occasionally used as a substitute for those fruits. Like other citrus fruit with C. cavaleriei ancestry, the shangjuan is relatively cold-tolerant.
The fruit looks a bit like a grapefruit, and can be either pale yellow or green depending on the degree of ripeness. Shangjuan fruits, which are very aromatic, can be as large as a grapefruit (up to 10 cm (3.9 in) or larger).
References
- "The Best Cold Hardy Citrus? So far..." cloudforest.com.
- Jorma Koskinen and Sylvain Jousse. "Citrus Pages / Papedas". free.fr.
