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Comments ( англиски )

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Yucca arkansana shows considerable variation, particularly in the eastern part of its range. S. D. McKelvey (1938–1947) described var. paniculata and suggested that it is an eastern extension of the species with a taller, paniculate, and pubescent inflorescence. Yucca arkansana approaches Y. louisianensis, which we have reduced to synonymy under Y. flaccida. K. H. Clary’s (1997) DNA consensus tree places Y. arkansana and Y. louisianensis adjacent to one another.
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Flora of North America Vol. 26: 426, 431, 436, 437, 438 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description ( англиски )

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Plants forming small colonies, acaulescent or caulescent; rosettes usually small. Stems decumbent, short, to 0.2 m. Leaf blade mostly yellowish green, flattened, grasslike, concavo-convex, widest near middle, 20–60(–70) × 0.7–2(–2.5) cm, flexible, margins entire, curled, filiferous, apex long, tapering to short spines 1.6–3.2 mm. Inflorescences racemose, occasionally paniculate proximally, arising within rosettes or at rosette level, 3–6(–8) dm, glabrous; bracts erect; peduncle scapelike, 0.2–0.5(–0.6) m, 0.3–0.7(–1.3) cm diam. Flowers pendent; perianth globose; tepals distinct, greenish white, elliptic to orbicular or oblong, 3.2–6.5 × 2–5 cm; filaments 1.3–2.5 cm; anthers 3.2 mm; pistil 2.5–2.8(–3.2) cm; style dark green, 7–13 mm, tumid; stigmas lobed. Fruits erect, capsular, dehiscent, oblong-cylindric to obovoid, constricted near middle, stout, 4–6.5(–7) × 2–3 cm, dehiscence septicidal. Seeds dull black, thin, ca. 1 cm diam.
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Flora of North America Vol. 26: 426, 431, 436, 437, 438 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Distribution ( англиски )

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Ark., Kans., Mo., Okla., Tex.
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Flowering/Fruiting ( англиски )

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Flowering spring.
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Habitat ( англиски )

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Gravelly soil, limestone outcrops, rocky hillsides, prairies; 100--400m.
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Synonym ( англиски )

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Yucca angustifolia Pursh var. mollis Engelmann; Y. arkansana var. paniculata McKelvey; Y. glauca Nuttall var. mollis Engelmann ex Branner & Coville
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Yucca arkansana ( германски )

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Yucca arkansana (englische Trivialnamen: Gras Yucca, Arkansas Yucca) ist eine Pflanzenart der Gattung der Palmlilien (Yucca) in der Familie der Spargelgewächse (Asparagaceae).

Beschreibung

Yucca arkansana wächst solitär, stammlos (selten mit kurzen Stämmen bis 15 cm Höhe) bis gruppenbildend. Die grasähnlichen, dünnen, weichen, flexiblen, grünen, blauen, an den Rändern weiß manchmal mit feinen Fasern, Blätter sind 20 bis 60 cm lang und 1 bis 2 cm breit. Der razemöse, in den Blättern beginnende Blütenstand wird 0,6 bis 2 Meter hoch. Die glockenförmigen, röhrenförmigen, weißen, cremefarbenen Blüten sind 3 bis 6 cm lang und breit. Yucca arkansana ist ein Bindeglied zwischen den Ostküsten-Yuccas der Serie Filamentosae und den westlichen Vertretern. Die Blütezeit ist von Juni bis Juli. Yucca arkansana ist in Mitteleuropa frosthart bis minus 18 °C. Aufgrund ihrer langen, schmalen, biegsamen Blätter, bieten sie ein grasähnliches Erscheinungsbild.

Verbreitung

Yucca arkansana ist in den USA in den Staaten Texas, Oklahoma, Arkansas, Missouri und Iowa in Ebenen im Grasland in 300 bis 1100 m Höhe verbreitet. Vergesellschaftet mit verschiedenen Kakteenarten.

Systematik

Die Erstbeschreibung durch William Trelease ist 1902 veröffentlicht worden.[1]

Es werden drei Unterarten unterschieden:

Sie sind Vertreter der Sektion Chaenocarpa Serie Glaucae.

Bilder

Literatur

  • Yucca arkansana. Fritz Hochstätter (Hrsg.): Yucca (Agavaceae). Band 1 USA, Selbstverlag. 2000, S. 18–19, Fotomaterial S. 106–109, S. 239. Erstbeschreibung S. 203. ISBN 3-00-005946-6.

Einzelnachweise

  1. Mo. Bot. Gard. Ann. Rept. 13: 63. 1902
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Yucca arkansana: Brief Summary ( германски )

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Yucca arkansana (englische Trivialnamen: Gras Yucca, Arkansas Yucca) ist eine Pflanzenart der Gattung der Palmlilien (Yucca) in der Familie der Spargelgewächse (Asparagaceae).

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Yucca arkansana ( англиски )

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Yucca arkansana, the Arkansas yucca,[3] is a plant in the family Asparagaceae, native to Texas, Oklahoma, Arkansas, Missouri and Kansas.[4][5] It generally grows in gravelly, sunlit locations such as rocky outcrops, prairies, etc.[3] It is not considered to be threatened.[1]

Yucca arkansana is one of the smaller members of the genus Yucca, acaulescent or with a stem no more than 76 cm tall. Flowers are greenish-white, borne on a flowering stalk up to 180 cm (72 inches) tall.[6][7][8]

A number of yucca moths lay their eggs upon Y. arkansana as a host plant, an example being Tegeticula intermedia.[9]

References

  1. ^ a b Clary, K.; Puente, R.; Hodgson, W.; Salywon, A. (2020). "Yucca arkansana". IUCN Red List of Threatened Species. 2020: e.T117423046A117469937. doi:10.2305/IUCN.UK.2020-2.RLTS.T117423046A117469937.en. Retrieved 19 November 2021.
  2. ^ Tropicos
  3. ^ a b Flora of North America v 26 p 436.
  4. ^ William Trelease. Annual Report of the Missouri Botanical Garden 13: 63–64. 1892.
  5. ^ Biota of North America Project
  6. ^ Benny's Kaktus
  7. ^ McKelvey, S. D. 1938–1947. Yuccas of the Southwestern United States. 2 vols. Jamaica Plain
  8. ^ Correll, D. S. & M. C. Johnston. 1970. Manual of the Vascular Plants of Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.
  9. ^ "Tegeticula intermedia". tolweb.org. Retrieved 2017-11-16.
Wikispecies has information related to Yucca arkansana.
Wikimedia Commons has media related to Yucca arkansana.
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Yucca arkansana: Brief Summary ( англиски )

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Yucca arkansana, the Arkansas yucca, is a plant in the family Asparagaceae, native to Texas, Oklahoma, Arkansas, Missouri and Kansas. It generally grows in gravelly, sunlit locations such as rocky outcrops, prairies, etc. It is not considered to be threatened.

Yucca arkansana is one of the smaller members of the genus Yucca, acaulescent or with a stem no more than 76 cm tall. Flowers are greenish-white, borne on a flowering stalk up to 180 cm (72 inches) tall.

A number of yucca moths lay their eggs upon Y. arkansana as a host plant, an example being Tegeticula intermedia.

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Yucca arkansana ( шпански; кастиљски )

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Yucca arkansana[1]​ es una especie de planta de la familia de las asparagáceas.

 src=
Vista de la planta

Distribución y hábitat

Es nativa de Texas, Oklahoma, Arkansas, Missouri y Kansas.[2][3]​ Por lo general crece en grava, lugares soleados como afloramientos rocosos, praderas, etc.[4]

Descripción

Yucca arkansana es uno de los miembros más pequeños del género Yucca, casi sin tallo o con un vástago de no más de 15 cm de altura. Las flores son de color blanco verdoso, transmitidas en un tallo floral de hasta 80 cm de altura.[5][6][7]

Taxonomía

Yucca arkansana fue descrito por William Trelease y publicado en Annual Report of the Missouri Botanical Garden 13: 63–64. 1892.[8]

Etimología

Yucca: nombre genérico que fue nombrado por Carlos Linneo y que deriva por error de la palabra taína: yuca (escrita con una sola "c").[9]

arkansana: epíteto geográfico que alude a su localización en Arkansas.

Sinonimia
  • Yucca angustifolia var. mollis Engelm.
  • Yucca arkansana var. paniculata McKelvey
  • Yucca glauca var. mollis Engelm. ex Branner & Coville
  • Yucca louisianensis var. paniculata (McKelvey) Shinners[10][11]

Referencias

  1. 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.
  2. William Trelease. Annual Report of the Missouri Botanical Garden 13: 63–64. 1892.
  3. Biota of North America Project
  4. Flora of North America v 26 p 436.
  5. Benny's Kaktus
  6. McKelvey, S. D. 1938–1947. Yuccas of the Southwestern United States. 2 vols. Jamaica Plain
  7. Correll, D. S. & M. C. Johnston. 1970. Manual of the Vascular Plants of Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.
  8. «Yucca arkansana». Tropicos.org. Missouri Botanical Garden. Consultado el 16 de junio de 2014.
  9. Quattrocchi, Umberto (2000). CRC World Dictionary of Plant Names. 4 R-Z. Taylor & Francis US. p. 2862. ISBN 978-0-8493-2678-3.
  10. «Yucca arkansana». The Plant List. Consultado el 15 de junio de 2015.
  11. «Yucca arkansana». Royal Botanic Gardens, Kew: World Checklist of Selected Plant Families. Consultado el 15 de junio de 2015.

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Yucca arkansana: Brief Summary ( шпански; кастиљски )

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Yucca arkansana​ es una especie de planta de la familia de las asparagáceas.

 src= Vista de la planta
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Yucca arkansana ( виетнамски )

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Yucca arkansana là một loài thực vật có hoa trong họ Măng tây. Loài này được Trel. miêu tả khoa học đầu tiên năm 1902.[2]

Chú thích

  1. ^ Tropicos
  2. ^ The Plant List (2010). Yucca arkansana. Truy cập ngày 16 tháng 7 năm 2013.

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Yucca arkansana: Brief Summary ( виетнамски )

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Yucca arkansana là một loài thực vật có hoa trong họ Măng tây. Loài này được Trel. miêu tả khoa học đầu tiên năm 1902.

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