Acanthocalycium ferrarii: Difference between revisions

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''Acanthocalycium ferrarii'' is a species of cactus in the genus [[Acanthocalycium]], native to Argentina.
''Acanthocalycium ferrarii'' is a species of cactus in the genus [[Acanthocalycium]], native to northwestern Argentina.


== Description ==
== Description ==
'''Acanthocalycium ferrarii''' is a small cactus species forming solitary, globose to short cylindrical stems.
'''Acanthocalycium ferrarii''' is a small to medium-sized cactus, usually growing solitary, with globose to short cylindrical stems. The epidermis is green to slightly grayish-green.
 
The plant develops 10–15 well-defined ribs with rounded margins. Areoles are regularly spaced and bear numerous radial spines and a few stronger central spines. Spines are straight, varying from pale gray to brownish, becoming darker with age.
 
Flowers are relatively large compared to the plant body, funnel-shaped, and variable in coloration, ranging from white to pale pink or yellowish tones. The floral tube bears characteristic scales with spines, hairs, and bristles.
 
Fruits are spherical, dry, and dehiscent. Seeds are small, dark, and papillose.


== Distribution ==
== Distribution ==
* Argentina
* Argentina – Catamarca, La Rioja


== Taxonomy ==
== Taxonomy ==
According to '''Joël Lodé''', this species is included in the genus [[Acanthocalycium]].
According to '''Joël Lodé''', this species is recognized as distinct within the genus [[Acanthocalycium]].


== Synonyms ==
== Synonyms ==
* ''[[Acanthocalycium variiflorum]]''
* ''[[Acanthocalycium variiflorum]]''
* ''Acanthocalycium thionanthum var. variiflorum''


== Notes ==
== Notes ==
* Recognized as a distinct species within the genus in the treatment by Joël Lodé.
* Originally treated as a variety of ''Acanthocalycium thionanthum''.
* Later elevated to species rank as ''Acanthocalycium ferrarii''.
* Shows variability in flower coloration, reflected in the name ''variiflorum''.


== Cultivation ==
== Cultivation ==
* requires well-draining mineral substrate   
* prefers well-draining mineral substrate   
* prefers bright light to full sun   
* requires bright light to full sun   
* moderate watering during growth period  
* moderate watering during active growth   
* keep dry during winter dormancy  
* keep dry and cool in winter   


[[Category:Cactaceae]]
[[Category:Cactaceae]]

Revision as of 15:14, 13 April 2026

Acanthocalycium ferrarii
File:Acanthocalycium ferrarii.jpg
Kingdom Plantae
Family Cactaceae
Subfamily Cactoideae
Tribe Trichocereeae
SubTribe
Genus Acanthocalycium
Species Acanthocalycium ferrarii
Notes Taxonomy follows Joël Lodé (2015–2019).

Acanthocalycium ferrarii is a species of cactus in the genus Acanthocalycium, native to northwestern Argentina.

Description

Acanthocalycium ferrarii is a small to medium-sized cactus, usually growing solitary, with globose to short cylindrical stems. The epidermis is green to slightly grayish-green.

The plant develops 10–15 well-defined ribs with rounded margins. Areoles are regularly spaced and bear numerous radial spines and a few stronger central spines. Spines are straight, varying from pale gray to brownish, becoming darker with age.

Flowers are relatively large compared to the plant body, funnel-shaped, and variable in coloration, ranging from white to pale pink or yellowish tones. The floral tube bears characteristic scales with spines, hairs, and bristles.

Fruits are spherical, dry, and dehiscent. Seeds are small, dark, and papillose.

Distribution

  • Argentina – Catamarca, La Rioja

Taxonomy

According to Joël Lodé, this species is recognized as distinct within the genus Acanthocalycium.

Synonyms

Notes

  • Originally treated as a variety of Acanthocalycium thionanthum.
  • Later elevated to species rank as Acanthocalycium ferrarii.
  • Shows variability in flower coloration, reflected in the name variiflorum.

Cultivation

  • prefers well-draining mineral substrate
  • requires bright light to full sun
  • moderate watering during active growth
  • keep dry and cool in winter