Opuntia triacantha | |
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Vulnerable (NatureServe) |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Caryophyllales |
Family: | Cactaceae |
Genus: | Opuntia |
Species: | O. triacantha |
Binomial name | |
Opuntia triacantha (Willd.) Sweet |
Opuntia triacantha is a species of cactus known by the common names Spanish lady, Keys Joe-jumper, Big Pine Key prickly-pear, and jumping prickly apple. It is native to the Caribbean, from Desecheo Island, Puerto Rico, to the Lesser Antilles.
This cactus grows prostrate or upright to a maximum length of 60 centimeters. The stem segments are flattened and oval in shape, up to 18 centimeters long by 7 wide. The black-tipped spines are up to 4 centimeters long. The cactus produces yellow flowers year-round. The fleshy red fruit is up to 3 centimeters long by 2 wide.
The cactus grows on the sandy limestone of exposed reefs.
This species is threatened by the cactus moth (Cactoblastis cactorum).