Pachycereus weberi

Pachycereus weberi
	Pachycereus weberi
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Pachycereeae
Genre :	Pachycereus
Type :	Pachycereus weberi
Scientific name
	Pachycereus weberi
	( JMCoult. ) Backeb.

Pachycereus weberi is a plant from the genus of Pachycereen in the family of cactus (Cactaceae). The specific epithet weberi honors the physician and botanist Frédéric Albert Constantin Weber . Spanish common names are "Candelabro", "Cardón" and "Chico".

description

Pachycereus weberi is a columnar cactus that grows like a tree and can reach heights of up to 11 meters. The moderately upright habit is candelabra-shaped. This typical growth form is only achieved in the plant from a size of two meters, where numerous branches of the main trunk arise. The slightly waxy bluish green side shoots have a diameter of 12 to 20 centimeters and consist of eight to ten ribs , which are covered with white-felted areoles at a distance of 2 to 3 (to 5) centimeters . The blackish, flattened central spine can be up to 10 centimeters long. It is accompanied by 6 to 12 reddish-brown radial spines with a length of 2 to 3 centimeters.

Flowers on Pachycereus weberi

The white to yellow flowers, which are only open at night, are 8 to 10 centimeters long. The ovary is round and woolly. The flower tube is covered with scales and brown hair. The edible fruits are 6 to 7 centimeters long and have fine yellowish thorns. The pulp is reddish purple.

Distribution, systematics and endangerment

Pachycereus weberi is distributed in the Mexican states of Puebla , Guerrero , Morelos , Chihuahua and Oaxaca at altitudes of 600 to 1,500 m.

It was first described in 1896 by John Merle Coulter as Cereus weberi . Curt Backeberg placed the species in the genus Pachycereus in 1960 .

The following synonyms exist : Cereus candelabrum , Cereus weberi , Lemaireocereus weberi , Pachycereus gigas , Pachycereus grandis var. Gigas , Pachycereus weberi var. Gigas , Ritterocereus weberi and Stenocereus weberi .

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

Karl Schumann : Complete description of the cacti (Monographia cactacearum) . J. Neumann, Neudamm 1899, p. 107 ( online ).
Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 537 .

Individual evidence

^ JM Coulter: Preliminary Revision of the North American Species of Echinocactus, Cereus, and Opuntia . In: Contributions from the United States National Herbarium . Volume 3, 1896, p. 410 (online) .
^ Curt Backeberg : Die Cactaceae: Handbuch der Kakteenkunde . 2nd Edition. tape IV . Gustav Fischer Verlag, Stuttgart New York 1984, ISBN 3-437-30384-8 , p. 2154 .
↑ Pachycereus weberi in the IUCN Red List of Threatened Species 2013.2. Posted by: Hernández, HM, Gómez-Hinostrosa, C. & Cházaro, M., 2009. Retrieved January 25, 2014.

Web links

Commons : Pachycereus weberi - Collection of images, videos and audio files

[1] JM Coulter: Preliminary Revision of the North American Species of Echinocactus, Cereus, and Opuntia . In: Contributions from the United States National Herbarium . Volume 3, 1896, p. 410 (online) .

[2] Curt Backeberg : Die Cactaceae: Handbuch der Kakteenkunde . 2nd Edition. tape IV . Gustav Fischer Verlag, Stuttgart New York 1984, ISBN 3-437-30384-8 , p. 2154 .

[3] Pachycereus weberi in the IUCN Red List of Threatened Species 2013.2. Posted by: Hernández, HM, Gómez-Hinostrosa, C. & Cházaro, M., 2009. Retrieved January 25, 2014.