Echinomastus johnsonii

Echinomastus johnsonii
	Echinomastus johnsonii
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Cacteae
Genre :	Echinomastus
Type :	Echinomastus johnsonii
Scientific name
	Echinomastus johnsonii
	( Parry ex Engelm. ) EMBaxter

Echinomastus johnsonii is a species of plant in the genus Echinomastus from the cactus family(Cactaceae). English common names are "Chartreuse Pineapple cactus", "Johnson's Pineapple Cactus", "Pineapple Cactus" and "Pink Viznagita".

description

Echinomastus johnsonii usually grows individually with egg-shaped to cylindrical, densely thorny shoots that reach heights of 10 to 25 centimeters with diameters of 5 to 10 centimeters. There are 17 to 21 ribs , which are clearly divided into about 6 millimeter long cusps . The 4 to 9 (almost) straight, spread out central spines are slightly pink to reddish, become darker with age and are 3 to 4 centimeters long. The lighter 9 to 10 spread radial spines are 1.2 to 2 centimeters long.

The funnel-shaped, magenta, pink or greenish yellow flowers are 5 to 6 centimeters long and reach a diameter of 5 to 7.5 centimeters. The green fruits tear open vertically and turn ocher in color when ripe.

Distribution, systematics and endangerment

Echinomastus johnsonii is common in the United States in the states of California , Arizona, and Nevada .

It was first described as Echinocactus johnsonii in 1871 by George Engelmann . Edgar Martin Baxter placed the species in the genus Echinomastus in 1935 .

Nomenclatory synonyms are Ferocactus johnsonii (Parry ex Engelm.) Britton & Rose (1922), Thelocactus johnsonii (Parry ex Engelm.) WTMarshall (1942), Neolloydia johnsonii (Parry ex Engelm.) LDBenson (1969) Sclerocactus johnsonii (Parry ex Engelm.) ) NPTaylor (1987) and Pediocactus johnsonii (Parry ex Engelm.) Halda (1998)

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. 214 .

Individual evidence

↑ United States Geological Expolration of the Fortieth Parallel. Botany . Washington 1871, p. 117.
↑ California Cactus . Pasadena 1935, p. 75.
↑ Sclerocactus johnsonii in the IUCN Red List of Threatened Species 2013.2. Listed by: Butterworth, C., Baker, M. & Porter, JM, 2010. Retrieved December 30, 2013.

Web links

Commons : Echinomastus johnsonii - album with pictures, videos and audio files

[1] United States Geological Expolration of the Fortieth Parallel. Botany . Washington 1871, p. 117.

[2] California Cactus . Pasadena 1935, p. 75.

[3] Sclerocactus johnsonii in the IUCN Red List of Threatened Species 2013.2. Listed by: Butterworth, C., Baker, M. & Porter, JM, 2010. Retrieved December 30, 2013.