Acanthocalycium thionanthum: Difference between revisions

From M&J Cactus Wiki
No edit summary
No edit summary
Line 10: Line 10:
| notes = Taxonomy follows Joël Lodé (2015–2019).
| notes = Taxonomy follows Joël Lodé (2015–2019).
}}
}}
''Acanthocalycium thionanthum'' is a species of cactus in the genus [[Acanthocalycium]], native to Argentina.


== Description ==
== Description ==
Line 25: Line 27:


== Synonyms ==
== Synonyms ==
The following names have been applied to this species:
* ''[[Echinopsis thionantha]]''
* ''[[Echinopsis thionantha]]''
* ''[[Echinocactus thionanthus]]''
* ''[[Echinocactus thionanthus]]''

Revision as of 14:52, 13 April 2026

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

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

Description

Acanthocalycium thionanthum is a small to medium-sized cactus species native to Argentina. Plants are usually solitary, globose to short cylindrical, dark green to gray-green, reaching up to 12 cm in height and 10 cm in diameter.

The ribs are 9–15, rounded and slightly notched. Areoles are elliptical. Spines are awl-shaped, gray with darker tips, typically 1–1.5 cm long. Central spines (1–4) may be absent, while radial spines number 5–10.

Flowers are somewhat bell-shaped and variable in color, ranging from bright yellow to red or white, up to 4.5 cm in length and diameter. Floral tubes bear dark, spine-tipped scales along with hairs and bristles. Fruits are globose, dry, and dehiscent, up to 1 cm in diameter.

Distribution

  • Argentina – Salta Province

Taxonomy

According to Joël Lodé, this species is placed in the genus Acanthocalycium.

Synonyms

Notes

  • Species shows high variability in flower color and spine development.
  • Frequently encountered under different generic names in horticulture.
  • One of the more widely distributed species within the genus.

Cultivation

This species is relatively easy to cultivate:

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