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Comments ( англиски )

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Yucca rupicola is endemic to southeastern Edwards Plateau. It is the only species in the flora with flaccid, twisted leaves.
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Flora of North America Vol. 26: 425, 431, 432 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description ( англиски )

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Plants usually forming open colonies of rosettes, acaulescent, with branching subterranean caudices; rosettes 2–15 per colony, each rosette with fewer than 100 leaves. Leaf blade lanceolate, twisted, strongly concave, widest at middle, distinctly narrowing toward base, broadened at stem attachments, 35–60 × 1.7–4 cm, somewhat fleshy, flexible, margins denticulate or wavy, dark orange or reddish brown, apex pointed. Inflorescences paniculate, arising beyond rosettes, narrowly ovoid, 2.5–10 dm; branches 0.7–2 dm; bracts erect; peduncle scapelike, 0.3–1.5 m, 1.5–2 cm diam. Flowers pendent; perianth campanulate; tepals distinct, white or greenish white, ovate, 4–7 × 1.5–3 cm, apex sharply acuminate; filaments 1.8–3.2 cm; pistil 2.5–4.5 cm; style white or greenish, 12–20 mm; stigmas lobed. Fruits erect, capsular, dehiscent, ellipsoid to cylindric, 4–5.5 × 2–3 cm, dehiscence septicidal. Seeds dull black, thin, 6–8 mm diam.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 26: 425, 431, 432 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Distribution ( англиски )

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Tex.
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Flora of North America Vol. 26: 425, 431, 432 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flowering/Fruiting ( англиски )

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Flowering late spring.
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Habitat ( англиски )

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Rocky hillsides of limestone ledges, open plains, woodlands; 400--900m.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Synonym ( англиски )

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Yucca rupicola var. tortifolia Engelmann
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Yucca rupicola ( германски )

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 src=
Yucca Serie Rupicolae: Verbreitungsgebiet in den USA

Yucca rupicola (englischer Trivialname: Twist Leaf-Yucca) ist eine Pflanzenart der Gattung der Palmlilien (Yucca) in der Familie der Spargelgewächse (Asparagaceae).

Beschreibung

Yucca rupicola wächst solitär und stammlos oder bildet kleine Gruppen. Die charakteristischen gedrehten, flexiblen grünen Laubblätter sind 25 bis 60 cm lang, 2 bis 2,5 cm und an der Basis 3 bis 6 cm breit. Sie sind wie alle Vertreter der Sektion Chaenocarpa Serie Rupicolae an den Blatträndern fein gezahnt.

Der über den Blättern beginnende, verzweigte Blütenstand wird 2 bis 3 Meter hoch. Die hängenden, glockenförmigen, weißen bis cremefarbenen Blüten weisen eine Länge von 4 bis 8 cm und einen Durchmesser 2 bis 3,5 cm auf. Die Blütezeit reicht von Mai bis Juni.

Vorkommen und Systematik

Yucca rupicola ist verwandt mit Yucca pallida einem weiteren Vertreter der Sektion Chaenocarpa Serie Rupicolae. Jedoch hat diese die blauen bis blaugrünen gefärbten Blätter.

Yucca rupicola ist in Mitteleuropa, Deutschland, Mannheim frosthart bis −20 °C. Sie ist in Sammlungen jedoch selten.

Yucca rupicola ist ein Endemit im Südosten des Edward Plateaus in Texas und ist auf kalkhaltigen, steinigen Böden und in Grasland in Höhenlagen zwischen 300 und 800 Metern verbreitet. Diese Art wächst oft vergesellschaftet mit verschiedenen Kakteen-Arten.

Der botanische Name rupicola ist vom lateinischen abgeleitet (engl. „inhabitant“ of rocky plants). Die Erstbeschreibung durch George Heinrich Adolf Scheele unter dem Namen Yucca rupicola ist 1850 veröffentlicht worden.[1]

Bilder

Yucca rupicola:

Literatur

  • Yucca rupicola. Fritz Hochstätter (Hrsg.): Yucca (Agavaceae). Band 1 In the Southwest, Midwest of the USA and Canada, Selbstverlag, 2002, S. 26–27, Fotomaterial S. 82, Erstbeschreibung S. 182–184, S. 231, ISBN 3-00-005946-6.

Einzelnachweise

  1. Linnaea. Band 23, 1850, S. 143–144, Online.
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Yucca rupicola: Brief Summary ( германски )

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 src= Yucca Serie Rupicolae: Verbreitungsgebiet in den USA

Yucca rupicola (englischer Trivialname: Twist Leaf-Yucca) ist eine Pflanzenart der Gattung der Palmlilien (Yucca) in der Familie der Spargelgewächse (Asparagaceae).

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Yucca rupicola ( англиски )

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Yucca rupicola is a plant in the family Asparagaceae, known as the twistleaf yucca, twisted-leaf yucca, Texas yucca[3] or twisted-leaf Spanish-dagger.[4] The species was described by George Heinrich Adolf Scheele in 1850.[5] 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).[3][6]

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.[7][8][9]

References

  1. ^ Clary, K.; Hodgson, W.; Salywon, A.; Puente, R. (2020). "Yucca rupicola". IUCN Red List of Threatened Species. 2020: e.T117428510A117470187. doi:10.2305/IUCN.UK.2020-1.RLTS.T117428510A117470187.en. Retrieved 20 November 2021.
  2. ^ "The Plant List: A Working List of All Plant Species".
  3. ^ a b "Yucca rupicola (Twistleaf yucca)". Native Plant Database. Lady Bird Johnson Wildflower Center. 2013. Retrieved 20 December 2013.
  4. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  5. ^ Adolf Scheele (1850). "Beiträge zur einer Flora von Texas". Linnaea. 23: 139–146 (page 143).
  6. ^ Kew World Checklist of Selected Plant Families, Yucca rupicola
  7. ^ Flora of North America v 26 p 431, Yucca rupicola
  8. ^ Scheele, George Heinrich Adolf. 1850. Linnaea 23: 143–146. Yucca rupicola
  9. ^ Engelmann, Georg. 1873. Transactions of the Academy of Science of St. Louis 3: 48. Yucca rupicola'
Wikispecies has information related to Yucca rupicola.
Wikimedia Commons has media related to Yucca rupicola.

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Yucca rupicola: Brief Summary ( англиски )

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Yucca rupicola is a plant in the family Asparagaceae, known as the twistleaf yucca, twisted-leaf yucca, Texas yucca or twisted-leaf Spanish-dagger. 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).

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.

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Yucca rupicola ( виетнамски )

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Yucca rupicola là một loài thực vật có hoa trong họ Măng tây. Loài này được Scheele miêu tả khoa học đầu tiên năm 1850.[2]

Hình ảnh

Chú thích

  1. ^ “The Plant List: A Working List of All Plant Species”.
  2. ^ The Plant List (2010). Yucca rupicola. Truy cập ngày 16 tháng 7 năm 2013.

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Yucca rupicola: Brief Summary ( виетнамски )

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Yucca rupicola là một loài thực vật có hoa trong họ Măng tây. Loài này được Scheele miêu tả khoa học đầu tiên năm 1850.

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