Peniocereus occidentalis
| Peniocereus occidentalis | ||||||||||||
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| Peniocereus occidentalis | ||||||||||||
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Peniocereus occidentalis is a species of plant in the genus Peniocereus from the cactus family(Cactaceae).
description
Peniocereus occidentalis has a shrubby growth with open-branched, spread-climbing shoots . The light yellowish brown fleshy roots are carrot-like, 30 to 50 centimeters long and have a diameter of 10 to 15 centimeters. Older shoots are dark green, straight or arched, 12 to 50 centimeters long and 3 to 3.5 centimeters in diameter. There are 6 to 7 ribs . Young shoots are smooth and measure up to 1 centimeter in diameter. They have up to 10 ribs, which are occasionally divided into small humps. The yellowish white central spines are solitary on young shoots and up to 4 millimeters long. On older shoots one to three are formed, which are thickened at their base and 3 to 6 millimeters long. The radial spines are yellowish white to brown. In young shoots there are five that are 2 to 3 millimeters long. On older shoots there are eight to ten with a length of 2 to 8 millimeters.
The funnel-shaped, white flowers are 7 to 8 inches long. Your pericarpel is conspicuously bumpy and covered with brownish woolly areoles , from which some thorns arise. The egg-shaped, purple-red fruits reach a diameter of 2.5 centimeters and a length of 3.5 centimeters.
Distribution, systematics and endangerment
Peniocereus occidentalis is common in the Mexican state of Oaxaca . It was first described in 1963 by Helia Bravo Hollis .
In the Red List of Threatened Species of IUCN is the species as " Critically Endangered (CR) ", d. H. listed as critically endangered.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 524 .
Individual evidence
- ↑ Cactaceas y Suculentas Mexicanas . Volume 8, Number 4, 1963, pp. 79-82.
- ↑ Peniocereus occidentalis in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Arias, S., Gómez-Hinostrosa, C. & Terrazas, T., 2009. Retrieved January 25, 2014.