Echinopsis Eyriesii on:
[Wikipedia]
[Google]
[Amazon]
''Echinopsis eyriesii'' is a
E. eyriesii is a very popular large caespitose cactus, widely grown for the huge nocturnal flowers. It is the best known and most commonly grown globular cactus.
In favorable conditions and after a long time, it may exceptionally forms large mounds up to 1,5 m tall and 2–3 m wide.
It is globular, later elongated and almost cylindrical, 15–30 cm high, 12 to 15 cm thick, dark green and heavily ribbed (9 to 18). On the ribs, there are circular areoles with very short spines (10 to 18).
The flower is very spectacular. The floral stem grows slowly (one month) up to 20 cm long. Then, on a spring or summer evening, the flower (white or light pink) opens with 10–12 cm in diameter. There is a light and delicious smell. It fades the next day, but in cold, rainy weather it may last two, rarely three days.
There is a variety without spines : Echinopsis eyriesii var. inermis, sometimes named Echinopsis inermis
''Echinopsis eyriesii'' is an easy to grow plant. It needs a fertile and well drained soil with sunny exposure. Water the plants well in summer, but let them dry before watering again. Use then special fertilizer for cacti. In winter keep dry. The temperature may be as low as −7 °C. For flowering in summer, the rest (dry and cold) in winter is necessary.
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of cacti
A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. The word ''cactus'' derives, through Latin, from the Ancient Greek ...
of the genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
''Echinopsis
''Echinopsis'' is a large genus of cacti native
Native may refer to:
People
* Jus soli, citizenship by right of birth
* Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory
** ...
''.
Habitat
Its original habitat is Southern Brazil,Uruguay
Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering ...
, and province of Entre Ríos Province
Entre Ríos (, "Between Rivers") is a central province of Argentina, located in the Mesopotamia region. It borders the provinces of Buenos Aires (south), Corrientes (north) and Santa Fe (west), and Uruguay in the east.
Its capital is Paraná ( ...
, Argentina.
It grows in grassy plains or in low hills in lowland up to 1.000 metres above sea level. The climate is tropical, continental. Winters are completely dry, while in summer the landscape is flooded by torrential rain and soaked with water. Rainfall up to 1500 mm by year. Average annual temperature 25–30 °C. The temperature rarely drops below zero degrees even if the landscape is open to the cold south pamperos winds.
Taxonomy
The species is dedicated to Alexandre Eyries, le Havre, France.Description
Source :
E. eyriesii is a very popular large caespitose cactus, widely grown for the huge nocturnal flowers. It is the best known and most commonly grown globular cactus.
In favorable conditions and after a long time, it may exceptionally forms large mounds up to 1,5 m tall and 2–3 m wide.
It is globular, later elongated and almost cylindrical, 15–30 cm high, 12 to 15 cm thick, dark green and heavily ribbed (9 to 18). On the ribs, there are circular areoles with very short spines (10 to 18).
The flower is very spectacular. The floral stem grows slowly (one month) up to 20 cm long. Then, on a spring or summer evening, the flower (white or light pink) opens with 10–12 cm in diameter. There is a light and delicious smell. It fades the next day, but in cold, rainy weather it may last two, rarely three days.
There is a variety without spines : Echinopsis eyriesii var. inermis, sometimes named Echinopsis inermis
Cultivation
Source :''Echinopsis eyriesii'' is an easy to grow plant. It needs a fertile and well drained soil with sunny exposure. Water the plants well in summer, but let them dry before watering again. Use then special fertilizer for cacti. In winter keep dry. The temperature may be as low as −7 °C. For flowering in summer, the rest (dry and cold) in winter is necessary.
Bibliography
* Edward Anderson “The Cactus family” Timber Press, Incorporated, 2001 * James Cullen, Sabina G. Knees, H. Suzanne Cubey "The European Garden Flora Flowering Plants: A Manual for the Identification of Plants Cultivated in Europe, Both Out-of-Doors and Under Glass" Cambridge University Press, 11 August 2011 * David R Hunt; Nigel P Taylor; Graham Charles; International Cactaceae Systematics Group. "The New Cactus Lexicon" dh books, 2006Notes and references
References
External links
* http://cactiguide.com/cactus/?genus=echinopsis&species=eyriesii * http://www.llifle.com/Encyclopedia/CACTI/Family/Cactaceae/8004/Echinopsis_eyriesii {{Taxonbar, from=Q140758 Night-blooming plants Flora of Argentina eyriesii