Armatocereus riomajensis

Armatocereus riomajensis
	Armatocereus riomajensis; shoot tip
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Browningieae
Genre :	Armatocereus
Type :	Armatocereus riomajensis
Scientific name
	Armatocereus riomajensis
	Rauh & Backeb.

Armatocereus riomajensis is a species of plant in the genus Armatocereus from the cactus family(Cactaceae). The specific epithet riomajensis refers to the range of the species, the valley of the Río Majes in Peru .

description

Armatocereus riomajensis grows shrubby to tree-shaped with dark gray-green shoots and reaches heights of up to 2 meters. There are seven to nine narrow ribs that are up to 2 inches high. The gray thorns have a darker tip. The one to four, sometimes twisted or angular central spines have a length of up to 12 centimeters. The ten to 15 radial spines are up to 10 millimeters long.

The white flowers are 8 to 10 inches long. The fruits are up to 13 centimeters long and reach a diameter of 5 centimeters. They are covered with up to 4 centimeters long, gray-purple thorns.

Distribution, systematics and endangerment

Armatocereus riomajensis is widespread in the Peruvian region of Arequipa in the valley of the Río Majes .

It was first described in 1957 by Werner Rauh and Curt Backeberg .

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. 78 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 203.
↑ Descriptiones Cactearum Novarum . 1957, p. 13.
↑ Armatocereus riomajensis in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Ostalaza, C., Cáceres, F. & Roque, J., 2011. Retrieved December 31, 2013.

Web links

Commons : Armatocereus riomajensis - album with pictures, videos and audio files

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 203.

[2] Descriptiones Cactearum Novarum . 1957, p. 13.

[3] Armatocereus riomajensis in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Ostalaza, C., Cáceres, F. & Roque, J., 2011. Retrieved December 31, 2013.