Cylindropuntia prolifera
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Cylindropuntia prolifera |
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| ( Engelm. ) FMKnuth |
Cylindropuntia prolifera is a species of the genus Cylindropuntia in the cactus family(Cactaceae). The specific epithet prolifera means 'sprouting' (Latin prolifer ).
description
Cylindropuntia prolifera grows shrubby or tree-shaped, is upright and reaches heights of 0.6 to 2.5 meters. On the slightly sloping greenish-gray, 4 to 15 centimeters long and 3.5 to 5 centimeters in diameter shoot sections there are protruding humps. The somewhat rounded, tan-colored woolly areoles turn black with age and have yellow to brown glochids 0.5 to 2.5 millimeters long . The six to twelve thorns are present on all areoles with the exception of the lowest. They are spread out, the lower ones bent downwards, needle-like and reddish brown to dark brown. The longest of them are up to 2 inches long. The sheaths of the thorns are shiny, light yellowish brown.
The flowers are pink to magenta in color. The top-shaped fruits are fleshy and usually sterile. They are 2.1 to 3.5 inches long and 2 to 3.2 inches in diameter. The fruits often proliferate and then form short upright chains of two to five fruits.
Distribution, systematics and endangerment
Cylindropuntia prolifera is distributed in the United States in the state of California and in the Mexican states of Baja California and Baja California Sur on cliffs and on coastal hills up to an altitude of 300 meters.
The first description as Opuntia prolifera by George Engelmann was published in 1852. Frederik Marcus Knuth placed the species in the genus Cylindropuntia in 1936 .
In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered. The species is common in the Mexican part of the range. In the American area it is less common and the number of individuals is decreasing.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 174 .
Individual evidence
- ^ Notes on the Cereus giganteus of South Eastern California and some other Californian Cactaceae . In: American Journal of Science and Arts . 2nd episode, Volume 14, 1852, p. 338 (online) .
- ^ Curt Backeberg , Frederik Marcus Knuth : Cactus ABC. En haandbog for fagfolk and amatører . Copenhagen 1936, p. 126 .
- ↑ Cylindropuntia prolifera in the IUCN Red List of Threatened Species 2014.1. Posted by: Pinkava, DJ, Baker, M. & Puente, R., 2013. Retrieved June 16, 2014.
