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Agave gigantensis ( allemand )

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Agave gigantensis ist eine Pflanzenart aus der Gattung der Agaven (Agave). Ein englischer Trivialname ist „ Mountain of the Giantess, Sierra de la Giganta Agave“.

Beschreibung

Agave gigantensis wächst solitär. Die offenen Rosetten sind 50 bis 100 cm hoch und 80 bis 120 cm breit. Die breiten, hartblättrigen, steifen, grüngefärbten bis bläulichen, lanzettenförmig, unregelmäßig angeordneten, gestreiften, spitz zulaufenden Blätter sind 40 bis 75 cm lang und 11 bis 16 cm breit. Die hornigen Blattränder sind variabel braun bis grau gezahnt. Der kräftige, graue Enddorn ist 2 bis 5 cm lang.

Der rispige, schmale Blütenstand wird 4 bis 5 m hoch. Die wachsartigen Knospen sind weiß gefärbt, gleichwohl sind die geöffneten, schlanken Blüten gelb gefärbt. Sie sind 48 bis 60 mm lang und erscheinen am oberen Teil des Blütenstandes an spärlichen, unregelmäßig angeordneten Verzweigungen. Die ausgebreitete Blütenröhre ist 4 bis 5 mm lang.

Die länglichen braunen dreikammerigen Kapselfrüchte sind 35 bis 40 mm lang und 12 bis 15 mm breit.

Systematik und Verbreitung

Agave gigantensis wächst endemisch in Mexiko, in Baja California Sur, in Wüstenzonen in 600 bis 1520 m Höhe. Sie ist vergesellschaftet mit Nolina beldingii und verschiedenen Kakteen Arten.

Die Erstbeschreibung durch Gentry ist 1978 veröffentlicht worden.[1]

Agave gigantensis ist ein Vertreter der Gruppe Deserticolae. Sie wächst begrenzt in Gebirgsregionen der Sierra de la Giganta im südlichen Teil der Halbinsel. Typisch sind die dicken, hartblättrigen, steifen, variabel angeordneten gestreiften Blätter. Agave gigantensis ist eng verknüpft mit den weiteren Mitgliedern der Deserticolae Gruppe Agave avellanidens und Agave moranii.[2] Agave gigantensis wird im Boyce Thompson Arboretum in Arizona, in Tucson kultiviert.

Literatur

  • Howard Scott Gentry: Agaves of Continental North America. University of Arizona Press, 1982, S. 354–360, 387–388.
  • Mary Irish, Gary Irish: Agaves, Yuccas and related plants of Continental North America. Timber Press, 2000, S. 127–128.
  • J. Thiede: Agave gigantensis. In: Urs Eggli (Hrsg.): Sukkulenten-Lexikon. Einkeimblättrige Pflanzen (Monocotyledonen). Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7, S. 33.

Einzelnachweise

  1. Howard Scott Gentry In: Occas. Pap. Calif. Acad. Sci., 1978, Band 130, S. 63.
  2. Gentry: 1982, S. 394.
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Agave gigantensis: Brief Summary ( allemand )

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Agave gigantensis ist eine Pflanzenart aus der Gattung der Agaven (Agave). Ein englischer Trivialname ist „ Mountain of the Giantess, Sierra de la Giganta Agave“.

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Agave gigantensis ( anglais )

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Agave gigantensis is a large, flowering agave plant found in Baja California Sur, Mexico. Its name is derived from the area of origin, not its large size. The plant is distinguishable by its red and purple leaves during flowering season. It is able to survive in harsh, rocky conditions and prefers dry and warm environments. The flowers of A. gigantensis are arranged in small clusters which diverge from a main branch. Unlike many other agave plants, A. gigantensis has been traditionally used in food and medicine by communities of western Mexico.

Distribution

Agave gigantensis is found on the Baja California Sur peninsula in western Mexico, among the Sierra de la Giganta mountains. It has also been introduced to the southern United States, near Phoenix, Arizona.

Habitat and ecology

This species typically grows in oak woodland communities and is able to grow on rough terrain with hard soil and rocks. It prefers growing in the desert, with a warm and dry climate. For example, Mexico and Arizona embody its preferred climate to grow in. The picture below shows the typical habitat for this species.

Morphology

Individuals of this species contain large, smooth dark green leaves that are very thick. The leaves on Agave gigantensis contain large gray and white teeth on their outer edges that range from 6-8cm apart. They grow outwards from the center of the plant in various directions. The leaves turn purple and red in color when flowering occurs. The rosettes of this plant are medium-sized, growing to be about 1m tall and 1.2m wide. The flower head of Agave gigantensis is much taller, about 4-5m in height. There is a stout flowering scape and the flower head contains small clusters of flowers, known as inflorescence.

Flowers and fruit

Flowers of Agave gigantensis are arranged a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches called an inflorescence. The flowers of this plant are known to arrange in an arching inflorescence. Morphologically, this indicates a modified part of the shoot of seed plants where flowers are formed. This species is also known for having geotropic flowers. The flowers are all cream-light chartreuse in color with yellow anthers and a slightly dark ovary. The most notable part of Agave gigantensis’s fruit bearing potential is its tall fruiting stalks which shows an erect scape and congested particles. The fruits of Agave gigantensis are not well documented, however it is assumed that they are similar to other Agave species.

Usage

Despite many other plants in the Agave species being inedible, such as Agave sobria, Agave gigantensis is both good for eating and distilling to make mezcal. It has been described by the people of Comondú Municipality, Mexico as “mescal pardo” or “pardito” which translates to brown mezcal, indicating this plant’s ability to be used in traditional mezcal.

Discovery

Agave gigantensis was first reported by an American botanist Howard Scott Gentry during his trip to Comondú, the west-central slopes of the Sierra de la Giganta Mountains, Mexico. The species of interest of his trip was Agave sobria. After collecting samples from A. sobria, he was informed of Agave gigantensis by the locals of Comondú, better known to them as “lechuguilla”. After seeing the plant, H.S. Gentry pressed its leaf specimens and cataloged it as Agave gigantensis.

References

  1. Webb, Robert, and Greg Starr. “Attempted Suicide by Agave: Agave Gigantensis Found in Baja California.” ResearchGate, Aug. 2013, https://www.researchgate.net/publication/265784065_Attempted_suicide_by_Agave_Agave_gigantensis_found_in_Baja_California.
  2. Webb, Robert H., and Greg Starr. The Real Agave Gigantensis in Baja California Sur, Mexico. ResearchGate, Jan. 2014, https://www.researchgate.net/publication/265784032_The_Real_Agave_gigantensis_in_Baja_California_Sur_Mexico.
  3. https://swbiodiversity.org/seinet/collections/individual/index.php?occid=1080953
  4. https://www.gbif.org/species/2766874/metrics
  1. ^ León de la Luz, J.L. (2019). "Agave gigantensis". IUCN Red List of Threatened Species. 2019: e.T115624147A116353853. doi:10.2305/IUCN.UK.2019-3.RLTS.T115624147A116353853.en. Retrieved 20 November 2021.
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Agave gigantensis: Brief Summary ( anglais )

fourni par wikipedia EN

Agave gigantensis is a large, flowering agave plant found in Baja California Sur, Mexico. Its name is derived from the area of origin, not its large size. The plant is distinguishable by its red and purple leaves during flowering season. It is able to survive in harsh, rocky conditions and prefers dry and warm environments. The flowers of A. gigantensis are arranged in small clusters which diverge from a main branch. Unlike many other agave plants, A. gigantensis has been traditionally used in food and medicine by communities of western Mexico.

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Agave gigantensis ( vietnamien )

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Agave gigantensis là một loài thực vật có hoa trong họ Măng tây. Loài này được Gentry mô tả khoa học đầu tiên năm 1978.[1]

Chú thích

  1. ^ The Plant List (2010). Agave gigantensis. Truy cập ngày 16 tháng 7 năm 2013.

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Agave gigantensis: Brief Summary ( vietnamien )

fourni par wikipedia VI

Agave gigantensis là một loài thực vật có hoa trong họ Măng tây. Loài này được Gentry mô tả khoa học đầu tiên năm 1978.

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大龍舌蘭 ( chinois )

fourni par wikipedia 中文维基百科
二名法 Agave gigantean
L.

大龍舌蘭学名Agave gigantean)为龍舌蘭科龍舌蘭屬下的一个种。

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大龍舌蘭: Brief Summary ( chinois )

fourni par wikipedia 中文维基百科

大龍舌蘭(学名:Agave gigantean)为龍舌蘭科龍舌蘭屬下的一个种。

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