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#REDIRECT [[Echinopsis oxygona]]
{{Use dmy dates|date=May 2021}}
{{Short description|Species of cactus}}{{Tone|date=March 2023}}{{speciesbox
| image = Echinopsis eyriesii HabitusFlowers BotGardBln0806b.JPG
| image_caption =
| genus = Echinopsis
| species = eyriesii
| authority = ([[Pierre Jean François Turpin|Turpin]]) 1830 [[Joseph Gerhard Zuccarini|Zucc.]] ex [[Ludwig Karl Georg Pfeiffer|Pfeiff.]] & [[Christoph Friedrich Otto|Otto]]
| synonyms = *''Echinopsis eyriesii'' {{small|(Turpin) Pfeiff. & Otto, 1838}}
}}


{{R from alternative scientific name|plant}}
'''''Echinopsis eyriesii''''' is a [[species]] of [[cactus|cacti]] of the [[genus]] ''[[Echinopsis]]''.
{{R with history}}

== Habitat ==
''Echinopsis eyriesii'' comes from Southern Brazil, [[Uruguay]], and [[Entre Ríos Province]], Argentina.
It grows in lowland habitats up to 1,000 meters above sea level. In these areas, the climate is tropical or continental. Typically, winters are dry and summer are rainy. The precipitation reaches 1500 mm a year with average annual temperature 25–30 °C.<ref name="llifle">{{Cite web | url=http://www.llifle.com/Encyclopedia/CACTI/Family/Cactaceae/8004/Echinopsis_eyriesii |title = Echinopsis eyriesii}}</ref>

== Taxonomy ==
The species is named after researcher [[Alexandre Eyries]] from [[Le Havre|Le Havre, France]].<ref>{{Cite web |title=Pink Easter Lily Cactus (Echinopsis eyriesii) |url=https://www.desert-tropicals.com/Plants/Cactaceae/Echinopsis_eyriesii.html |access-date=2023-03-15 |website=www.desert-tropicals.com}}</ref>

== Description ==
[[File:Echinopsis eyriesii.JPG|thumb|left|Flower of ''E. eyriseii'' in full bloom]]
''E. eyriesii'' is a popular large [[caespitose]] cactus known for their large nocturnal flowers. It is the perhaps best known and most commonly grown globular cactus.

''E. eyriseii'' is globular, elongated and approximately cylindrical. It typically grows to 15–30 cm high and 12–15 cm thick. In favorable conditions, ''E. eyriseii'' may form mounds up to 1.5 m tall and 2–3 m wide. The cactus is dark green and has 9 to 18 ribs, which have circular areoles with 10 to 18 spines each.

Its floral stem develops over the course of a month up to 20 cm long. The flowers bloom in the evening of either spring or summer. The flower usually blooms for a day, but may last longer in cold or rainy conditions.<ref name="llifle" />

Echinopsis eyriesii var. inermis, or Echinopsis inermis, is a spineless variety<ref>{{Cite web|url=http://www.llifle.com/Encyclopedia/CACTI/Family/Cactaceae/25318/Echinopsis_eyriesii_var._inermis|title = Echinopsis eyriesii var. Inermis}}</ref>

{{Clr}}
== Cultivation ==
''Echinopsis eyriesii'' needs fertile and well drained soil with sunlight to grow.

It should be watered in summer, but the soil should dry between waterings. The cactus should not be watered in winter so that the flowers bloom. The cultivation temperature may be as low as −7 °C. <ref name="llifle" />

== References ==
{{Reflist}}

== Further reading ==
* 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, 2006

== External links ==
{{Commonscat|Echinopsis eyriesii}}
{{Wikispecies|Echinopsis eyriesii}}

* http://cactiguide.com/cactus/?genus=echinopsis&species=eyriesii
* http://www.llifle.com/Encyclopedia/CACTI/Family/Cactaceae/8004/Echinopsis_eyriesii

{{Taxonbar|from=Q140758}}

[[Category:Night-blooming plants]]
[[Category:Flora of Argentina]]
[[Category:Echinopsis|eyriesii]]

Latest revision as of 17:44, 3 December 2024

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