Cephalocereus columna-trajani

Cephalocereus columna-trajani
	Cephalocereus columna-trajani
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Pachycereeae
Genre :	Cephalocereus
Type :	Cephalocereus columna-trajani
Scientific name
	Cephalocereus columna-trajani
	( Karw. Ex Pfeiff. ) K.Schum.

Cephalocereus columna-trajani is a species of plant in the genus Cephalocereus from the cactus family(Cactaceae).

description

Cephalocereus columna-trajani grows with non-branching green shoots and reaches heights of 6 to 10 meters with diameters of up to 40 centimeters. There are 16 to 26 ribs , which are almost entirely divided into cusps by transverse furrows . Plenty of white, silky hairs arise from the white areoles near the tip of the shoot. The 5 to 8 downward, stiff central spines are grayish and up to 8 inches long. The 14 to 18 white radial spines are up to 1 centimeter long. The clearly lateral, narrow, 2 to 3 meter long pseudocephalium extends to the tip of the shoot and is mostly directed to the north. It consists of yellowish, woolly hair 4 to 6 centimeters long.

The tubular to bell-shaped flowers are white to light yellow and have a length of up to 7.5 centimeters and the same diameter.

Distribution, systematics and endangerment

Cephalocereus columna-trajani is widespread in the Mexican states of Oaxaca and Puebla and forms dense forests there. The first description as Cereus columna-trajani was published in 1837 by Ludwig Georg Karl Pfeiffer . Karl Moritz Schumann placed them in the genus Cephalocereus in 1894 .

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

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 100 .

Individual evidence

↑ Enumeratio Diagnostica Cactearum hucusque Cognitarum . Berlin 1837, p. 76 (online) .
↑ In: Engler, Prantl: Natural Plant Families . Volume 3, Division 6a, 1894, p. 182 (online) .
↑ Cephalocereus columna-trajani in the IUCN Red List of Threatened Species 2013.2. Posted by: Arias, S., Hernández, C. & Zavala-Hurtado, A., 2009. Retrieved January 20, 2014 ..

Web links

Commons : Cephalocereus columna-trajani - Collection of images, videos and audio files

[1] Enumeratio Diagnostica Cactearum hucusque Cognitarum . Berlin 1837, p. 76 (online) .

[2] In: Engler, Prantl: Natural Plant Families . Volume 3, Division 6a, 1894, p. 182 (online) .

[3] Cephalocereus columna-trajani in the IUCN Red List of Threatened Species 2013.2. Posted by: Arias, S., Hernández, C. & Zavala-Hurtado, A., 2009. Retrieved January 20, 2014 ..