Acanthocalycium ferrarii

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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), with alternative classifications noted below.

Description

Acanthocalycium ferrarii is a small globose cactus species native to Argentina. Plants are usually solitary, with dark green stems and well-defined ribs.

The ribs are typically low and rounded. Areoles are small and spaced along the ribs. Spines are short to medium in length, usually grayish with darker tips. The number and length of spines may vary depending on growing conditions.

Flowers are relatively large compared to the body, funnel-shaped, and commonly yellow, though variations may occur. The floral tube bears scales, hairs, and bristles typical of the genus.

Distribution

  • Argentina (northwestern regions)

Taxonomy

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

In broader classifications, it is often treated as part of Echinopsis, reflecting a wider genus concept based on molecular data.

Synonyms

The following names have been associated with this species:

Notes

  • Considered closely related to other species of the genus such as Acanthocalycium thionanthum.
  • Shows variability in spine development depending on habitat conditions.

Cultivation

This species is relatively easy to cultivate:

  • requires well-draining soil
  • prefers bright light
  • benefits from a dry winter rest