Opuntia ficus-indica
| Opuntia ficus-indica | |
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| Illustration by Eaton in The Cactaceae | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Core eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Genus: | Opuntia |
| Subgenus: | Opuntia |
| Species: | O. ficus-indica |
| Binomial name | |
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Opuntia ficus-indica (L.) Mill. |
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| Synonyms | |
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Opuntia ficus-indica is a species of cactus that has long been a domesticated crop plant important in agricultural economies throughout arid and semiarid parts of the world. It is thought probably to have originated in Mexico. Some of the common English names for the plant and its fruit are Indian fig opuntia, Barbary fig, cactus pear, spineless cactus, and prickly pear, although this last name has also been applied to other less common Opuntia species. In Mexican Spanish, the plant is called nopal, while the fruit is called tuna, which are names also used in American English, especially as culinary terms.
Fig opuntia is grown primarily as a fruit crop, but also for the vegetable nopales and other uses. Most culinary references to the "prickly pear" are referring to this species. The name "tuna" is also used for the fruit of this cactus, and for Opuntia in general; according to Alexander von Humboldt, it was a word of Taino origin taken into the Spanish language around 1500.
Cacti are good crops for dry areas because they efficiently convert water into biomass. O. ficus-indica, as the most widespread of the long-domesticated cactuses, is as economically important as maize and blue agave in Mexico today. Because Opuntia species hybridize easily (much like oaks), the wild origin of O. ficus-indica is likely to have been in Mexico due to the fact that its close genetic relatives are found in central Mexico.
Opuntia ficus-indica is polyploid, hermaphrodite and autogamous. As Opuntia species grow in semi-arid environments, the main limiting factor in their environment is water. They have developed a number of adaptations to dry conditions, notably succulence.
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Wikipedia