Peniocereus rosei
| Peniocereus rosei | ||||||||||||
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| Peniocereus rosei | ||||||||||||
| JGOrtega |
Peniocereus rosei is a species of plant in the genus Peniocereus from the cactus family(Cactaceae). The specific epithet honors the American botanist Joseph Nelson Rose .
description
Peniocereus rosei grows shrubby and more or less upright with branches pointing downwards and reaches heights of up to 2 meters. The dirty white, fleshy roots are bulbous and 8 to 10 centimeters in diameter. The green shoots are 30 to 80 centimeters long and 1 to 1.5 centimeters in diameter. They are covered with numerous, tiny, white spots below each areole . There are four to five ribs on young shoots , older shoots are almost revolving. Initially there are only one to two, later eight to nine, thin, yellow, downward-pointing thorns . Sometimes they are completely absent.
The white flowers are up to 10 centimeters long and reach the same diameter. Your woolly pericarpel is covered with thorns. The egg-shaped, red fruits reach a length of up to 3 centimeters.
Distribution, systematics and endangerment
Peniocereus rosei is common in the Mexican states of Jalisco and Sinaloa . It was first described in 1926 by Jesús González Ortega .
In the Red List of Threatened Species of IUCN is the species as " Vulnerable (VU) ", d. H. listed as endangered.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 524 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Birkhäuser 2004, ISBN 3-540-00489-0 , p. 205.
- ^ Revista Mexicana de Biologia . Volume 6, Mexico City 1926, pp. 189-121.
- ↑ Peniocereus rosei in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Terrazas, T., Cházaro, M. & Arreola, H., 2009. Retrieved January 25, 2014.