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Yucca glauca : ウィキペディア英語版 | Yucca glauca
''Yucca glauca'' (syn. ''Yucca angustifolia'') is a species of perennial evergreen plant, adapted to xeric (dry)growth conditions. It is also known as small soapweed,〔 soapweed yucca, Great Plains yucca and beargrass. ''Yucca glauca'' forms colonies of rosettes. Leaves are long and narrow, up to 60 cm long bur rarely more than 12 mm across. Inflorescence is up to 100 cm tall, sometimes branched sometimes not. Flowers are pendent (drooping, hanging downward), white to very pale green. Fruit is a dry capsule with shiny black seeds.〔(Flora of North America v 26 p 437, ''Yucca glauca'' )〕〔Nuttall, Thomas. 1813. Catalogue of New and Interesting Plants Collected in Upper Louisiana no. 89.〕 ==Distribution== ''Yucca glauca'' is native to central North America: occurring from the Canadian Prairies of Alberta and Saskatchewan in Canada; south through the Great Plains to Texas and New Mexico in the United States.
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