Acanthocalycium spiniflorum
| 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). |
Description
Acanthocalycium spiniflorum 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 15 cm in height and 10–12 cm in diameter.
The ribs are numerous (typically 10–16), well defined and divided into tubercles. Areoles are oval and bear dense clusters of spines. Radial spines number 8–12, slender and slightly curved, while central spines (1–4) are stronger, often darker and more prominent.
Flowers are funnel-shaped and relatively large, usually pink to reddish or magenta, sometimes with lighter centers. The floral tube is covered with scales, hairs, and bristles. Fruits are small, globose, dry, and split open when mature.
Distribution
- Argentina – northwestern regions
Occurs in dry mountainous areas, often on rocky slopes and well-drained soils.
Taxonomy
According to Joël Lodé, this species is placed in the genus Acanthocalycium.
The species has historically been associated with the genus Echinopsis, reflecting morphological similarities and ongoing taxonomic revisions within the tribe.
📚 Taxonomy note: Taxonomic placement follows the system of Joël Lodé (2015–2019).
Species within the genus
- Acanthocalycium ferrarii
- Acanthocalycium glaucum
- Acanthocalycium klimpelianum
- Acanthocalycium spiniflorum
- Acanthocalycium thionanthum
Synonyms
The following names have been applied to this species:
Notes
- One of the more widely cultivated species in the genus.
- Notable for its relatively large and colorful flowers.
- Displays variability in spine density and coloration.
Cultivation
This species is relatively easy to cultivate:
- prefers well-draining mineral substrate
- requires bright light for compact growth
- moderate watering during active growth
- keep dry and cool in winter
