Acanthocalycium ferrarii: Difference between revisions

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{{Taxobox
{{Taxobox
| name = Acanthocalycium ferrarii
| name = Acanthocalycium ferrarii
| image = Acanthocalycium ferrarii.jpg
| image = Acanthocalycium_ferrarii.jpg
| kingdom = [[Plantae]]
| kingdom = [[Plantae]]
| family = [[Cactaceae]]
| family = [[Cactaceae]]
| subfamily = [[Cactoideae]]
| subfamily = [[Cactoideae]]
| tribe = [[Trichocereeae]]
| tribe = [[Cereeae]]
| subtribe = [[Trichocereinae]]
| genus = [[Acanthocalycium]]
| genus = [[Acanthocalycium]]
| species = '''Acanthocalycium ferrarii'''
| species = '''A. ferrarii'''
| binomial = Acanthocalycium ferrarii
| binomial_authority = Rausch (1976)
| notes = Taxonomy follows Joël Lodé (2015–2019).
| notes = Taxonomy follows Joël Lodé (2015–2019).
}}
}}
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== Description ==
== 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.
'''Acanthocalycium ferrarii''' is a small to medium-sized cactus, usually solitary, with globose to short cylindrical stems and a green to grey-green epidermis.


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.
* '''Ribs''': 10–15, well defined, slightly tuberculate
* '''Areoles''': Regularly spaced, with short wool when young
* '''Spines''': Numerous, straight; radial and central spines present; colour variable from pale grey to brown
* '''Flowers''': Diurnal, subapical; funnel-shaped; white to pink or yellowish; floral tube with spiny scales
* '''Fruits''': Spherical, dry; dehiscent
* '''Seeds''': Dark, papillose


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.
== Distribution ==
Argentina:


Fruits are spherical, dry, and dehiscent. Seeds are small, dark, and papillose.
* Catamarca
* La Rioja


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


== Taxonomy ==
* Described by Rausch (1976)
According to '''Joël Lodé''', this species is recognized as distinct within the genus [[Acanthocalycium]].
* Accepted as a distinct species in Lodé (2015)


== Synonyms ==
== Synonyms ==
* ''[[Acanthocalycium variiflorum]]''
According to Joël Lodé (2015):
* ''[[Acanthocalycium thionanthum var. variiflorum]]''
 
* ''Acanthocalycium variiflorum'' — nom. inval.


== Notes ==
== Notes ==
* Originally treated as a variety of ''Acanthocalycium thionanthum''.
 
* Later elevated to species rank as ''Acanthocalycium ferrarii''.
* Originally associated with ''Acanthocalycium thionanthum''
* Shows variability in flower coloration, reflected in the name ''variiflorum''.
* Displays variability in flower coloration


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


[[Category:Cactaceae]]
[[Category:Cactaceae]]
[[Category:Cactoideae]]
[[Category:Cactoideae]]
[[Category:Trichocereeae]]
[[Category:Cereeae]]
[[Category:Trichocereinae]]
[[Category:Acanthocalycium]]
[[Category:Acanthocalycium]]

Latest revision as of 20:07, 27 April 2026

Acanthocalycium ferrarii
File:Acanthocalycium ferrarii.jpg
Kingdom Plantae
Family Cactaceae
Subfamily Cactoideae
Tribe Cereeae
SubTribe Trichocereinae
Genus Acanthocalycium
Species A. 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 solitary, with globose to short cylindrical stems and a green to grey-green epidermis.

  • Ribs: 10–15, well defined, slightly tuberculate
  • Areoles: Regularly spaced, with short wool when young
  • Spines: Numerous, straight; radial and central spines present; colour variable from pale grey to brown
  • Flowers: Diurnal, subapical; funnel-shaped; white to pink or yellowish; floral tube with spiny scales
  • Fruits: Spherical, dry; dehiscent
  • Seeds: Dark, papillose

Distribution

Argentina:

  • Catamarca
  • La Rioja

Taxonomy

  • Described by Rausch (1976)
  • Accepted as a distinct species in Lodé (2015)

Synonyms

According to Joël Lodé (2015):

  • Acanthocalycium variiflorum — nom. inval.

Notes

  • Originally associated with Acanthocalycium thionanthum
  • Displays variability in flower coloration

Cultivation

  • well-draining mineral substrate
  • bright light to full sun
  • moderate watering during growth
  • dry, cool winter rest
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