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Opuntia triacantha : ウィキペディア英語版 | Opuntia triacantha
''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, to Big Pine Key in Florida.〔(''Opuntia triacantha''. ) Center for Plant Conservation.〕 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.〔(''Opuntia triacantha''. ) Flora of North America.〕 The cactus grows on the sandy limestone of exposed reefs.〔〔(''Opuntia triacantha''. ) The Nature Conservancy.〕 This species is threatened by the cactus moth (''Cactoblastis cactorum'').〔 ==References==
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