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yucca elata
''Yucca elata'' is a perennial plant, with common names that include soaptree, soaptree yucca, soapweed, and palmella.〔(Common names of yucca species )〕 It is native to southwestern North America, in the Sonoran Desert and Chihuahuan Desert in the United States (western Texas, New Mexico, Arizona), southern Nevada, southwestern Utah, and northern Mexico (Chihuahua, Coahuila, Sonora, Nuevo León).〔(Biota of North America Project, Yucca elata )〕〔
==Description==
This plant grows from 1.2-4.5 m tall, with a sparsely branched trunk. The trunk is brown, cylindrical in shape and has a small diameter and often has holes drilled by escaping yucca moth larvae. The leaves are arranged in a dense spiral whorl at the apex of the stems, each leaf 25–95 cm long and very slender, 0.2-1.3 cm broad. The white, bell-shaped flowers grow in a dense cluster on a slender stem at the apex of the stem, each flower 32–57 mm long, creamy white, often tinged pinkish or greenish.〔Fritz Hochstätter (Hrsg.): '' Yucca (Agavaceae). Band 1 Dehiscent-fruited species in the Southwest and Midwest of the USA, Canada and Baja California '', Selbst Verlag, 2000. ISBN 3-00-005946-6〕〔Fritz Hochstätter (Hrsg.): '' Yucca (Agavaceae). Band 2 Indehiscent-fruited species in the Southwest, Midwest and East of the USA'', Selbst Verlag. 2002. ISBN 3-00-009008-8〕〔Fritz Hochstätter (Hrsg.): '' Yucca (Agavaceae). Band 3 Mexico '', Selbst Verlag, 2004. ISBN 3-00-013124-8〕
The soaptree yucca's fruit is a capsule 4–8 cm long and 2–4 cm broad, maturing brown in summer, when it splits into three sections to release the black seeds. They do not flower every year.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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