الأسماء في صفحات التنقل
Sclerocactus glaucus ist eine Pflanzenart der Gattung Sclerocactus in der Familie der Kakteengewächse (Cactaceae). Der botanische Name glaucus wurde für die typische blau-grüne Habitusfarbe ausgewählt. Ein englischer Trivialname ist „Uinta Basin Hookless Cactus“.
Sclerocactus glaucus ist gefährdet und in Anhang I des Washingtoner Artenschutzabkommens zum Schutz gefährdeter Arten aufgenommen.
Der kugel- bis eiförmig wachsende Sclerocactus glaucus erreicht Wuchshöhen 5 bis 10 cm lang und Durchmesser von 5 bis 8 cm. Die trichterförmigen, rosa Blüten weisen eine Länge und einen Durchmesser von 3 bis 6 cm auf. Die Blühperiode beginnt Ende April.
Sclerocactus glaucus ist nahe verwandt mit Sclerocactus wrightiae und Sclerocactus parviflorus und ist ein Vertreter der Sektion Parviflori. Die pubescente Bedornung in der juvenilen Phase ist ein bedeutendes Merkmal dieser Art. Sie unterscheidet sich von der juvenilen Bedornung von Sclerocactus wetlandicus und Sclerocactus parviflorus.
Sclerocactus glaucus ist auf der Grand Mesa in Colorado nahe dem Colorado River und Gunnison Rivers auf flachen, steinigen, lehmigen Hügeln in Höhenlagen zwischen 1400 und 2000 Metern angesiedelt. Vergesellschaftet ist diese Art oft mit Pediocactus simpsonii, Escobaria missouriensis, Echinocereus triglochidiatus f. inermis und diversen Yucca- und Opuntia-Arten.
Die Erstbeschreibung als Echinocactus glaucus durch Karl Moritz Schumann wurde 1898 veröffentlicht.[1] Joseph Anton Purpus hatte den Namen jedoch bereits 1895 in einem kurzen Artikel erwähnt.[2] Der amerikanische Botaniker J. Whitman Evans stellte sie 1939 als Sclerocactus franklinii in die Gattung Sclerocactus.[3] Die gültige Beschreibung wurde von Lyman David Benson 1966 veröffentlicht.[4]
In der Roten Liste gefährdeter Arten der IUCN wird die Art als „Least Concern (LC)“, d. h. als nicht gefährdet geführt.[5]
Sclerocactus glaucus in Colorado:
Gedrückt kugeliges Exemplar.
In voller Blüte.
In Gramma Gras.
Jungpflanzen mit Blüte.
Sclerocactus glaucus ist eine Pflanzenart der Gattung Sclerocactus in der Familie der Kakteengewächse (Cactaceae). Der botanische Name glaucus wurde für die typische blau-grüne Habitusfarbe ausgewählt. Ein englischer Trivialname ist „Uinta Basin Hookless Cactus“.
Sclerocactus glaucus ist gefährdet und in Anhang I des Washingtoner Artenschutzabkommens zum Schutz gefährdeter Arten aufgenommen.
Sclerocactus glaucus is a rare species of cactus known by the common name Colorado hookless cactus. It is endemic to Colorado in the United States, where it is known only from the area between Grand Junction and Montrose.[3] It is a federally listed threatened species.
The description of this species formerly included plants now belonging to Sclerocactus brevispinus and Sclerocactus wetlandicus, two cacti endemic to Utah. When the second of the two species was separated in 1994, the name S. glaucus was applied only to plants found in Colorado; it made the common name Uinta Basin hookless cactus a misnomer, because now this species does not occur in the Uinta Basin of Utah.[4] The two new species retained their federally threatened status, which they had received while members of S. glaucus.[5] Sources vary in whether they recognize the separation of these species from S. glaucus; Anderson (2001) does not.[6]
This cactus is cylindrical in shape and measures up to 28 centimeters tall by 9 wide, though it is usually much shorter.[3] During the dry season it may shrink so much it disappears beneath the soil surface.[1] There are up to 12 white radial spines on each of its areoles, and several straight whitish, reddish, or black central spines pointing in various directions. The central spines may be 1 to 2 centimeters long or more. The fragrant funnel- or bell-shaped flower is up to 5 or 6 centimeters long and has pink tepals. The stamens have white or green filaments and yellow anthers. The fruit is barrel-shaped and up to 2 or 3 centimeters in length.[3]
This plant grows on exposed stretches of gravelly clay, including alluvial benches above floodplains and on mesa slopes. Nearby rivers include the Green, Colorado and Gunnison Rivers.[7] It is part of saltbush and sagebrush-dominated desert shrub plant communities, or pinyon-juniper woodlands. Other plants in the habitat include shadscale (Atriplex confertifolia), galleta (Hilaria jamesii), black sagebrush (Artemisia nova), Indian rice grass (Stipa hymenoides), strawberry hedgehog cactus (Echinocereus triglochidiatus var. melanacanthus), Simpson's pincushion cactus (Pediocactus simpsonii), prickly pear cactus (Opuntia polyacantha), winterfat (Krascheninnikovia lanata), yucca (Yucca harrimaniae), snakeweed (Gutierrezia sarothrae), low rabbitbrush (Chrysothamnus viscidiflorus), sand dropseed (Sporobolus cryptandrus), and Salina wildrye (Leymus salinus).[1]
This cactus faces a number of threats. Almost all of the populations are threatened by habitat loss and degradation due to human activities such as hydrocarbon exploration, residential development, rock mining, and the introduction of livestock to the area. It has been affected by the TransColorado Pipeline. The petroleum industry is expected to attract a large population to this rural area.[8] Poaching is also a problem.[1]
Sclerocactus glaucus is a rare species of cactus known by the common name Colorado hookless cactus. It is endemic to Colorado in the United States, where it is known only from the area between Grand Junction and Montrose. It is a federally listed threatened species.
The description of this species formerly included plants now belonging to Sclerocactus brevispinus and Sclerocactus wetlandicus, two cacti endemic to Utah. When the second of the two species was separated in 1994, the name S. glaucus was applied only to plants found in Colorado; it made the common name Uinta Basin hookless cactus a misnomer, because now this species does not occur in the Uinta Basin of Utah. The two new species retained their federally threatened status, which they had received while members of S. glaucus. Sources vary in whether they recognize the separation of these species from S. glaucus; Anderson (2001) does not.
This cactus is cylindrical in shape and measures up to 28 centimeters tall by 9 wide, though it is usually much shorter. During the dry season it may shrink so much it disappears beneath the soil surface. There are up to 12 white radial spines on each of its areoles, and several straight whitish, reddish, or black central spines pointing in various directions. The central spines may be 1 to 2 centimeters long or more. The fragrant funnel- or bell-shaped flower is up to 5 or 6 centimeters long and has pink tepals. The stamens have white or green filaments and yellow anthers. The fruit is barrel-shaped and up to 2 or 3 centimeters in length.
This plant grows on exposed stretches of gravelly clay, including alluvial benches above floodplains and on mesa slopes. Nearby rivers include the Green, Colorado and Gunnison Rivers. It is part of saltbush and sagebrush-dominated desert shrub plant communities, or pinyon-juniper woodlands. Other plants in the habitat include shadscale (Atriplex confertifolia), galleta (Hilaria jamesii), black sagebrush (Artemisia nova), Indian rice grass (Stipa hymenoides), strawberry hedgehog cactus (Echinocereus triglochidiatus var. melanacanthus), Simpson's pincushion cactus (Pediocactus simpsonii), prickly pear cactus (Opuntia polyacantha), winterfat (Krascheninnikovia lanata), yucca (Yucca harrimaniae), snakeweed (Gutierrezia sarothrae), low rabbitbrush (Chrysothamnus viscidiflorus), sand dropseed (Sporobolus cryptandrus), and Salina wildrye (Leymus salinus).
This cactus faces a number of threats. Almost all of the populations are threatened by habitat loss and degradation due to human activities such as hydrocarbon exploration, residential development, rock mining, and the introduction of livestock to the area. It has been affected by the TransColorado Pipeline. The petroleum industry is expected to attract a large population to this rural area. Poaching is also a problem.
Wikimedia Commons has media related to Sclerocactus glaucus.
Sclerocactus glaucus es un miembro de la familia Cactaceae. Es una rara especie endémica de Nuevo México, Colorado y Utah en Estados Unidos. Su hábitat natural son los desiertos.
Cactus globoso-cilíndrico de color verde glauco, con prominentes costillas de donde surgen las espinas radiales y una central, todas ellas ganchudas. Este cactus es de forma cilíndrica y mide hasta 28 centímetros de alto por 9 de ancho, aunque por lo general es mucho más corto.[2] Durante la estación seca puede reducirse tanto que desaparece debajo de la superficie del suelo.[3] Tiene hasta 12 espinas blancas radiales en cada uno de sus areolas y varias espinas centrales rectas, de color rojizo o negro que apuntan en varias direcciones. Las espinas centrales pueden ser de 1 a 2 centímetros de largo o más. Las flores en forma de embudo son fragantes o una flor en forma de campana de hasta 5 o 6 centímetros de largo con tépalos rosas. Los estambres tienen filamentos blancos o verdes y anteras amarillas. El fruto tiene forma de barril y de hasta 2 o 3 centímetros de longitud.[2]
Esta planta crece en los tramos expuestos de grava arcilla , incluyendo bancos aluviales por encima de las llanuras de inundación y sobre la mesa de las laderas.Los ríos cercanos incluyen los ríos Green, Colorado y Río Gunnisons.[4] Es parte del matorral xerófilo y artemisas en las comunidades vegetales del desierto, o bosques de pino-enebro. Otras plantas en el hábitat incluyen Atriplex confertifolia, Hilaria jamesii, Artemisia nova, Stipa hymenoides, Echinocereus triglochidiatus, Pediocactus simpsonii, Opuntia polyacantha, Krascheninnikovia lanata, Yucca harrimaniae, Gutierrezia sarothrae, Chrysothamnus viscidiflorus, Sporobolus cryptandrus y Leymus salinus[3]
Sclerocactus glaucus fue descrita por (K.Schum.) L.D.Benson y publicado en Cactus and Succulent Journal 38(2): 53. 1966.[5]
Sclerocactus: nombre genérico que deriva del griego y significa "cacto duro o cruel" y es una referencia a las espinas ganchudas que se adhieren firmemente a lo que tenga contacto con ellas.[6]
glaucus: epíteto latíno que significa "glauco"[7]
Sclerocactus glaucus es un miembro de la familia Cactaceae. Es una rara especie endémica de Nuevo México, Colorado y Utah en Estados Unidos. Su hábitat natural son los desiertos.
Sclerocactus glaucus là một loài thực vật có hoa trong họ Cactaceae. Loài này được (K. Schum.) L.D. Benson miêu tả khoa học đầu tiên năm 1966.[1]
.jpg)
Sclerocactus glaucus là một loài thực vật có hoa trong họ Cactaceae. Loài này được (K. Schum.) L.D. Benson miêu tả khoa học đầu tiên năm 1966.
.jpg)
