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Yucca rupicola : ウィキペディア英語版 | Yucca rupicola
''Yucca rupicola'' is a plant in the family Asparagaceae, known as the twistleaf yucca, twisted-leaf yucca or Texas yucca. The species was described by George Heinrich Adolf Scheele in 1850. This is a small, acaulescent plant with distinctive twisted leaves. It is native to the Edwards Plateau region of Texas and also to northeastern Mexico (Coahuila, Nuevo León).〔〔(Kew World Checklist of Selected Plant Families, ''Yucca rupicola'' )〕 Yucca rupicola forms colonies of rosettes, lacking trunks above-ground but producing a branched caudex under the surface. Leaves are narrowly lanceolate, slightly succulent, twisted, up to 60 cm long but about 40 mm wide at its widest point. Flowers are pendant (drooping), bell-shaped, white or greenish. Fruit is a dry capsule up to 6 cm long.〔(Flora of North America v 26 p 431, ''Yucca rupicola'' )〕〔(Scheele, George Heinrich Adolf. 1850. Linnaea 23: 143–146. ''Yucca rupicola'' )〕〔(Engelmann, Georg. 1873. Transactions of the Academy of Science of St. Louis 3: 48. ''Yucca rupicola' )〕 ==References==
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