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''Yucca angustissima'',〔(Georg Engelmann. Annual Report of the Missouri Botanical Garden 13: 58–59, pl. 23, f. 1, pl. 24, f. 1, pl. 83, f. 6. 1902 ).〕 the narrowleaf yucca, is a plant in the family Agavaceae, known as the "narrow-leaved yucca.〔Bowers, Janice Emily. 1993. Shrubs & Trees of the Southwest Deserts. Western National Parks Association, Tucson.〕" It is native to Arizona, New Mexico, Colorado and Utah, but grown elsewhere as an ornamental.〔Georg Engelmann. Annual Report of the Missouri Botanical Garden 13: 58–59, pl. 23, f. 1, pl. 24, f. 1, pl. 83, f. 6. 1902.〕〔(Flora of North America v 26 p 434. )〕〔(Biota of North America Project, ''Yucca angustissima'' )〕 ''Yucca angustissima'' is a low-lying species forming colonies of basal rosettes up to 3 m (10 feet) in diameter. Leaves are long and thin, up to 150 cm long but rarely more than 2 cm across. Flowers are white to cream or greenish-white, pendant, borne in racemes on stalks up to 2 m (7 feet) tall. Fruit is a dry capsule with black seeds.〔McKelvey, S. D. 1938–1947. Yuccas of the Southwestern United States. 2 vols. Jamaica Plain.〕〔Trelease, W. 1902. The Yucceae. Rep. (Annual) Missouri Bot. Gard. 13: 27–133〕〔Thomas H. Kearney, Robert H. Peebles. 1961. Arizona Flora, Second edition. University of California Press, Berkeley.〕 ==Varieties== Numerous varietal names have been proposed, but 4 are currently recognized:〔〔(The Plant List )〕 # ''Yucca angustissima'' var. ''angustissima''—Arizona, Utah, New Mexico, Colorado # ''Yucca angustissima'' var. ''avia'' Reveal〔Reveal, James Lauritz. 1977. Intermountain Flora; vascular plants of the Intermountain West, U.S.A. New York vol 6, p 534 ''Yucca angustissima''〕—Utah only # ''Yucca angustissima'' var. ''kanabensis'' (McKelvey) Reveal〔—Arizona and Utah # ''Yucca angustissima'' var. ''toftiae'' (S.L.Welsh) Reveal〔—Utah only 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「Yucca angustissima」の詳細全文を読む スポンサード リンク
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