Acanthocalycium spiniflorum: Difference between revisions

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| genus = [[Acanthocalycium]]
| genus = [[Acanthocalycium]]
| species = '''Acanthocalycium spiniflorum'''
| species = '''Acanthocalycium spiniflorum'''
| notes = Taxonomy follows Joël Lodé (2015–2019, updated 2025).
| notes = Taxonomy follows Joël Lodé (2015–2019).
}}
}}
''Acanthocalycium spiniflorum'' is a species of cactus in the genus [[Acanthocalycium]], native to Argentina.


== Description ==
== Description ==
'''Acanthocalycium spiniflorum''' is a globose to short cylindrical cactus species native to Argentina. Plants are typically solitary, dark green to gray-green, reaching up to 15 cm in height and 10–12 cm in diameter.
'''Acanthocalycium spiniflorum''' is a small to medium-sized cactus, typically solitary, with globose to slightly elongated stems. The epidermis is green to dark green.
 
The plant has well-defined ribs with slightly rounded margins. Areoles bear numerous radial spines and several stronger central spines. Spines are straight to slightly curved, varying in color from whitish to brownish.


The ribs are numerous (10–16), clearly defined and divided into tubercles. Areoles are oval, bearing dense clusters of spines. Radial spines (8–12) are slender and slightly curved, while central spines (1–4) are thicker and more prominent.
Flowers are funnel-shaped, relatively large, and typically pink to reddish, sometimes with lighter tones. The floral tube is covered with scales bearing spines, hairs, and bristles.


Flowers are large relative to the plant body, funnel-shaped, and usually pink to reddish or magenta, sometimes with lighter centers. The floral tube bears scales with hairs and bristles. Fruits are small, globose, dry, and dehiscent.
Fruits are spherical, dry, and dehiscent. Seeds are small, dark, and papillose.


== Distribution ==
== Distribution ==
* Argentina – northwestern regions 
* Argentina – Salta, Tucumán
 
Occurs in arid mountainous habitats, typically on rocky slopes and well-drained soils.


== Taxonomy ==
== Taxonomy ==
According to '''Joël Lodé''', this species is placed in the genus [[Acanthocalycium]], which is currently accepted as a valid genus based on modern taxonomic revisions. :contentReference[oaicite:1]{index=1} 
According to '''Joël Lodé''', this species is recognized within the genus [[Acanthocalycium]].
 
Historically, the species has been associated with [[Echinopsis]] and [[Lobivia]], reflecting morphological similarities within the tribe Trichocereeae.
 
{{TaxonomySource}}
 
== Species within the genus ==
* [[Acanthocalycium ferrarii]]
* [[Acanthocalycium glaucum]]
* [[Acanthocalycium klimpelianum]]
* [[Acanthocalycium spiniflorum]]
* [[Acanthocalycium thionanthum]]


== Synonyms ==
== Synonyms ==
The following names have been applied to this species:
* ''[[Acanthocalycium violaceum]]''
 
* ''[[Echinopsis spiniflora]]''
* ''[[Echinocactus spiniflorus]]'' 
* ''[[Lobivia spiniflora]]'' 


== Notes ==
== Notes ==
* One of the most widespread and variable species within the genus.
* Distinguished by its relatively large and often vividly colored flowers.
* Flower size is relatively large compared to the stem.
* Shows variability in spine density and flower coloration.
* Frequently encountered under different generic names in horticulture.
* Includes taxa previously described under different names, later unified under this species.


== Cultivation ==
== Cultivation ==
This species is relatively easy to cultivate:
* prefers well-draining mineral substrate   
* prefers well-draining mineral substrate   
* requires bright light to full sun   
* requires bright light to full sun   

Latest revision as of 15:23, 13 April 2026

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

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

Description

Acanthocalycium spiniflorum is a small to medium-sized cactus, typically solitary, with globose to slightly elongated stems. The epidermis is green to dark green.

The plant has well-defined ribs with slightly rounded margins. Areoles bear numerous radial spines and several stronger central spines. Spines are straight to slightly curved, varying in color from whitish to brownish.

Flowers are funnel-shaped, relatively large, and typically pink to reddish, sometimes with lighter tones. The floral tube is covered with scales bearing spines, hairs, and bristles.

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

Distribution

  • Argentina – Salta, Tucumán

Taxonomy

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

Synonyms

Notes

  • Distinguished by its relatively large and often vividly colored flowers.
  • Shows variability in spine density and flower coloration.
  • Includes taxa previously described under different names, later unified under this species.

Cultivation

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