Cylindropuntia echinocarpa
| Cylindropuntia echinocarpa | ||||||||||||
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Cylindropuntia echinocarpa |
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| Cylindropuntia echinocarpa | ||||||||||||
| ( Engelm. & JMBigelow ) FMKnuth |
Cylindropuntia echinocarpa is a species of the genus Cylindropuntia in the cactus family(Cactaceae). The specific epithet echinocarpa means '(Latin echinocarpus) with hedgehog-like fruits, i.e. prickly fruity'. English common names are "Golden Cholla", "Ground Cholla" and "Silver Cholla".
description
Cylindropuntia echinocarpa grows shrubby or tree-shaped, is richly branched and reaches heights of 0.5 to 2 meters. On the green to pale gray-green, cylindrical, 3 to 7.5 centimeters (often up to 12 cm) long and 1 to 2.5 cm in diameter measured drive portions are clearly visible bump. Only the outermost sections of the shoot fall off slightly. The elliptical white or yellow areoles turn gray and have conspicuous, yellow glochids 3 to 4 millimeters long . The six to 22 spines are present on almost all areoles. They are particularly strong on the areoles of the shoot section tips. The thorns interlock and hide the shoots. They are erect to spread, white to brown, sometimes darker, and are 2.5 to 5 inches long. Bristle-like thorns are also often present. The sheaths of the thorns are white at their base and golden yellow above.
The light green to yellowish green flowers have lengths of 2 to 2.3 centimeters. The tan-colored, inverted conical to spherical fruits are dry and thorny. They are 1.3 to 2.3 inches long and 1.1 to 2 inches in diameter.
Distribution, systematics and endangerment
Cylindropuntia echinocarpa is widespread in the United States in the states of California , Nevada and Arizona as well as in the Mexican states of Baja California and Sonora in semi-deserts as well as grasslands and woodlands at altitudes of 50 to 1700 meters.
The first description as Opuntia echinocarpa by George Engelmann and John Milton Bigelow was published in 1856. Frederik Marcus Knuth placed the species in 1930 in the genus Cylindropuntia . A nomenclature synonym is Cactus echinocarpus (Engelm. & JMBigelow) Lem. (1868).
In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered. The development of the populations is considered stable.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 171 .
Individual evidence
- ↑ George Engelmann, John Milton Bigelow: Description Of The Cactaceae. In: Route near the thirty-fifth parallel explored by Lieutenant AW Whipple, Topographical Engineers, in 1853 and 1854 . Volume 4, Part 5, Report Of The Botany Of The Expedition, B. Tucker, Washington 1856, p. 49 (online) .
- ↑ Den nye cactus arch . 1930, p. 106.
- ↑ Cylindropuntia echinocarpa in the IUCN Red List of Threatened Species 2014.1. Posted by: Pinkava, DJ, Baker, M. & Puente, R., 2013. Retrieved June 12, 2014.
