Echinocereus chisoensis

Echinocereus chisoensis
	Echinocereus chisoensis var. Fobeanus
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Pachycereeae
Genre :	Echinocereus
Type :	Echinocereus chisoensis
Scientific name
	Echinocereus chisoensis
	WTMarshall

Echinocereus chisoensis is a species of plant in the genus Echinocereus from the cactus family(Cactaceae). The specific epithet chisoensis refers to the occurrence of the species in the Chisos Mountains in the Big Bend National Park . English common names are "Chisos Hedgehog Cactus" and "Chisos Mountains Hedgehog Cactus".

description

Echinocereus chisoensis grows solitary or branching. The gray to blue-green cylindrical shoots tapering towards their tips are 5 to 25 centimeters long and 3 to 5 centimeters in diameter. They are not covered by the thorns. Their roots are occasionally thickened. There are ten to 16 ribs , which are arranged a little spiral-shaped and clearly humped. The areoles on them are noticeably woolly. The one to six very slender central spines are brownish. They have a length of up to 1.7 centimeters. The lowest of them is the longest and protrudes, the others are ascending-spreading. The eleven to 16 rather spreading, whitish to grayish radial spines are 1.2 to 2 centimeters long. The top are very short, the bottom the longest.

The funnel-shaped flowers are light, slightly pink-magenta and have a white throat. They appear near the shoot tips and below, are 6 to 9.5 centimeters long and reach 5 to 12 centimeters in diameter. The club-shaped, reddish, woolly and bristly fruits are up to 3.5 centimeters long and tear open.

Distribution, systematics and endangerment

Echinocereus chisoensis is found in the United States in western Texas, as well as in the Mexican states of Coahuila , Chihuahua, and Durango .

The first description by William Taylor Marshall was published in 1940. A nomenklatorisches synonym is Echinocereus reichenbachii var. Chisosensis (WTMarshall) LDBenson (1969). The following subspecies are distinguished:

Echinocereus chisoensis var. Chisoensis
Echinocereus chisoensis var. Fobeanus (Oehme) NPTaylor

In the Red List of Threatened Species of IUCN is the species as " Endangered (EN) ," d. H. listed as endangered.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 193 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 46.
^ William Taylor Marshall: Echinocereus chisoensis . In: Cactus and Succulent Journal . Volume 12, Cactus and Succulent Society of America, 1940, p. 15.
↑ Echinocereus chisoensis in the IUCN Red List of Threatened Species 2013.2. Posted by: Terry, M., Heil, K. & Corral-Díaz, R., 2009. Retrieved January 25, 2014.

Web links

Commons : Echinocereus chisoensis - collection of images, 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. 46.

[2] William Taylor Marshall: Echinocereus chisoensis . In: Cactus and Succulent Journal . Volume 12, Cactus and Succulent Society of America, 1940, p. 15.

[3] Echinocereus chisoensis in the IUCN Red List of Threatened Species 2013.2. Posted by: Terry, M., Heil, K. & Corral-Díaz, R., 2009. Retrieved January 25, 2014.