Escobaria dasyacantha

Escobaria dasyacantha
	Escobaria dasyacantha ssp. chaffeyi SB966
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Cacteae
Genre :	Escobaria
Type :	Escobaria dasyacantha
Scientific name
	Escobaria dasyacantha
	( Engelm. ) Britton & Rose

Escobaria dasyacantha is a species of plant in the genus Escobaria from the cactus family(Cactaceae). The specific epithet dasyacantha is derived from the Greek words dasys for 'dense', 'rough', 'shaggy' and akantha for 'thorn'. An English common name is "Cob Cactus".

description

Escobaria dasyacantha grows singly and occasionally sprouts. The depressed spherical to short cylindrical shoots reach heights of growth of up to 20 centimeters and diameters of 4 to 7 centimeters. The shoots are covered by the dense white thorns. Of the up to 10 millimeters long warts , the older ones are often corked and thornless at the base of the shoots. The seven to 17 strong, white central spines have a length of 2.5 centimeters. The 25 to 50 or more radial spines are strong, white and 0.6 to 2.5 inches long.

The flowers are more or less pink to brownish or occasionally greenish. They are up to 2 inches long and 1.5 to 2 inches in diameter. The flowers rarely open completely due to the dense, stiff thorns. The red, club-shaped fruits are up to 10 millimeters in length.

Distribution, systematics and endangerment

Escobaria dasyacantha is common in the United States in the states of New Mexico and Texas and the Mexican states of Chihuahua , Coahuila , Nuevo León, and Zacatecas .

The first description as Mammillaria dasyacantha by George Engelmann was published in 1856. Nathaniel Lord Britton and Joseph Nelson Rose put the species in 1923 in the genus Escobaria .

Further nomenclature synonyms are Coryphantha dasyacantha (Engelm.) Orcutt (1926) and Escobesseya dasyacantha (Engelm.) Hester (1945).

The following subspecies are distinguished:

Escobaria dasyacantha subsp. dasyacantha
Escobaria dasyacantha subsp. chaffeyi (Britton & Rose) NPTaylor

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. 273 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 61.
↑ George Engelmann: Synopsis of the Cactaceae of the Territory of the United States and Adjacent Regions . In: Proceedings of the American Academy of Arts and Sciences . Volume 3, 1856, pp. 268-269 (online) .
^ NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape IV . The Carnegie Institution of Washington, Washington 1923, p. 55 ( online ).
↑ Escobaria dasyacantha in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Terry, M., Heil, K., Gómez-Hinostrosa, C. & Corral-Díaz, R., 2009. Retrieved December 17, 2013.

Web links

Photos of Escobaria dasyacantha subsp. dasyacantha
Photos of Escobaria dasyacantha subsp. chaffeyi

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 61.

[2] George Engelmann: Synopsis of the Cactaceae of the Territory of the United States and Adjacent Regions . In: Proceedings of the American Academy of Arts and Sciences . Volume 3, 1856, pp. 268-269 (online) .

[3] NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape IV . The Carnegie Institution of Washington, Washington 1923, p. 55 ( online ).

[4] Escobaria dasyacantha in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Terry, M., Heil, K., Gómez-Hinostrosa, C. & Corral-Díaz, R., 2009. Retrieved December 17, 2013.