Ferocactus alamosanus

Ferocactus alamosanus
	Ferocactus alamosanus
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Cacteae
Genre :	Ferocactus
Type :	Ferocactus alamosanus
Scientific name
	Ferocactus alamosanus
	( Britton & Rose ) Britton & Rose

Ferocactus alamosanus is a species of the genus Ferocactus in the cactus family(Cactaceae). The specific epithet alamosanus refers to the Mexican city of Álamos , where the species was found.

description

Ferocactus alamosanus usually grows individually and only rarely sprouts. The depressed spherical to short columnar shoots reach heights of up to 1 meter with diameters of 30 centimeters or more. There are 12 to 20 narrow, sharp-edged or blunt to rounded ribs . The needle-like thorns are yellow. The single, protruding central spine is angular, somewhat flattened on the side and up to 6 centimeters long. The mostly eight, somewhat spreading radial spines have a length of 3 to 4 centimeters.

The funnel-shaped, greenish yellow flowers reach a length of up to 4.5 centimeters and have a diameter of 3.5 centimeters. The up to 4 centimeters long, egg-shaped fruits are yellow and tear open with a basal pore.

Distribution, systematics and endangerment

Ferocactus alamosanus is found in the Mexican states of Sonora , Michoacán , Oaxaca and Colima .

It was first described as Echinocactus alamosanus in 1913 by Nathaniel Lord Britton and Joseph Nelson Rose . In 1922, the two authors placed the species in their newly established genus Ferocactus .

The following subspecies are distinguished:

Ferocactus alamosanus subsp. alamosanus
Ferocactus alamosanus subsp. reppenhagenii (G.Unger) NPTaylor

In the Red List of Threatened Species of IUCN is the species as " Near Threatened (NT) ", d. H. listed as low risk.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 289-290 .

Individual evidence

^ NL Britton, JN Rose: Studies in Cactaceae . In: Contributions from the United States National Herbarium Volume 16, 1913, p. 239 , plate 66 .
^ NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape III . The Carnegie Institution of Washington, Washington 1922, p. 137 .
↑ Ferocactus alamosanus in the IUCN Red List of Threatened Species 2013.2. Posted by: Van Devender, T., 2010. Retrieved December 19, 2013.

Web links

Commons : Ferocactus alamosanus - Collection of images, videos and audio files

Description of the species at Ferocactus.org

[1] NL Britton, JN Rose: Studies in Cactaceae . In: Contributions from the United States National Herbarium Volume 16, 1913, p. 239 , plate 66 .

[2] NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape III . The Carnegie Institution of Washington, Washington 1922, p. 137 .

[3] Ferocactus alamosanus in the IUCN Red List of Threatened Species 2013.2. Posted by: Van Devender, T., 2010. Retrieved December 19, 2013.