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''Opuntia megarrhiza'' Rose is a species of plant in the Cactaceae family. It is endemic to the State of San Luís Potosí in northeastern Mexico.〔H.M. Hernández, C. Gómez-Hinostrosa, & R.T. Barcenas. 2001. Studies on Mexican Cacti II: ''Opuntia megarrhiza'', a poorly known endemic from San Luís Potosí, México. Brittonia 528-533.〕 It is known only from 5 populations, around the summits of La Trinidad and Álvarez Mountain Ranges, in San Luis Potosí, northeastern Mexico. 〔Hernández, H.M., Gómez-Hinostrosa, C. & Goettsch, B. 2002. (IUCN Red List of Threatened Species: ''Opuntia megarrhiza'' ). accessed 3.23.2013〕 Its natural habitat is subtropical or tropical dry lowland grassland. It is an endangered species, threatened by habitat loss, grazing, and harvest for traditional medicinal uses. ==Synonyms== *''Opuntia megarrhiza'' Rose, Contr. U.S. Natl. Herb. 10:126. 1906. 〔Rose, Contr. U.S. Natl. Herb. 10:126. 1906〕 * *''Opuntia macrorhiza'' var. ''potosina'' Hernández-Valencia, Acta Cientifica Potosina 10:155-162. 1988. 〔Hernández-Valencia, Acta Cientifica Potosina 10:155-162. 1988. 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Opuntia megarrhiza」の詳細全文を読む スポンサード リンク
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