Pediocactus simpsonii

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Pediocactus simpsonii
Pediocactus simpsonii with flowers in Arizona

Pediocactus simpsonii with flowers in Arizona

Systematics
Order : Clove-like (Caryophyllales)
Family : Cactus family (Cactaceae)
Subfamily : Cactoideae
Tribe : Cacteae
Genre : Pediocactus
Type : Pediocactus simpsonii
Scientific name
Pediocactus simpsonii
( Engelm. ) Britton & Rose

Pediocactus simpsonii is a species of the genus Pediocactus in the cactus family(Cactaceae). The specific epithet honors James Hervey Simpson (1813–1883). English common names are "Plains Cactus" and "Mountains Cactus".

description

The spherical, cylindrical to oval growing, group-forming Pediocactus simpsonii reaches heights of growth of 4 to 20 cm and a diameter of 3 to 15 cm. The funnel-shaped to tubular flowers have a length of 1 to 3.5 cm and a diameter of 2 to 2.5 cm; they appear like a wreath around the vertex. The bracts are pink, white to yellow.

Pediocactus simpsonii is a representative of the Pediocactus section . It is the most common species of the genus. This species is hardy to minus 30 ° C when dry , and it can be grown without roots in Europe. In the collection of K. Krätschmer (Odernheim, Germany) specimens have been cultivated for years without protection.

Distribution, systematics and endangerment

Pediocactus simpsonii grows in the states of Arizona , Nevada , Colorado , Idaho , Montana , New Mexico , Wyoming and Utah in a wide variety of soil types, in "Pinyon Juniper Forests", in the "Rocky Mountains Montane Forest" and in "Sagebrush Deserts" in Altitudes between 1300 and 3100 meters. This species is often associated with Sclerocactus parviflorus , Sclerocactus glaucus , Sclerocactus pubispinus , Sclerocactus wetlandicus, various Escobaria , Echinocereus , Opuntia species and Yucca glauca .

The first description by George Engelmann under the name Echinocactus simpsonii was published in 1863. The American botanists Nathaniel Lord Britton and Joseph Nelson Rose put it in 1913 as Pediocactus simpsonii in the genus Pediocactus .

According to Fritz Hochstätter, the following subspecies are distinguished:

In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered.

photos

  • Light pink blooming in Nevada

  • Young plant with flowers in Wyoming

  • Young plant with flowers in Colorado

  • Natural site in Nevada at an altitude of 2300 m

literature

  • Fritz Hochstätter (Ed.): At the locations of Pediocactus and Sclerocactus . Self-published, 1989.
  • Fritz Hochstätter (Ed.): The Genera Pediocactus, Navajoa, Toumeya . English with a German summary. Self-published, 2007, ISBN 978-3-000212444 .

Individual evidence

  1. ^ Fritz Hochstätter: The Genera Pediocactus, Navajoa, Toumeya . Pp. 22-23. Photo material pp. 112–135, first description p. 310, pp. 346–347, 2007
  2. ↑ Trans. Acad. Sci. St. Louis 2: 197.1863.
  3. ↑ III. Fl. North. US, ed. 2, 2: 570. 1913.
  4. ↑ Pediocactus simpsonii in the Red List of Threatened Species of the IUCN 2013.2. Listed by: Butterworth, C. & Porter, JM, 2010. Retrieved December 29, 2013.

Web links

Commons : Pediocactus simpsonii  - collection of images, videos and audio files