| Acanthocalycium thionanthum | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Acanthocalycium |
| Species: | A. thionanthum |
| Binomial name | |
| Acanthocalycium thionanthum (Speg.) Backeb. 1935 | |
| Synonyms | |
| |
Acanthocalycium thionanthum is a species of Acanthocalycium from Argentina. [1]
Acanthocalycium thionanthum usually grows individually with spherical to short cylindrical, dark green to green-grey shoots and reaches a height of up to 12 cm (4.7 in) with a diameter of 10 cm (3.9 in). There are 9 to 15 round ribs that are slightly notched and bumpy. From the elliptical areoles arise submissive, gray thorns that have a darker tip. There are 1 to 4 central spines, which can also be absent, and 5 to 10 radial spines.
The somewhat bell-shaped flowers are bright yellow to red or white. They have a length of up to 4.5 cm (1.8 in) and have the same diameter. Your pericarpel and the flower tube are covered with dark pointed scales and brown to white hair and bristles. The spherical, hard-fleshed fruits tear open and reach a diameter of up to 1 cm (0.39 in). [2]
Recognized subspecies: [3]
| Image | Scientific name | Distribution |
|---|---|---|
 | Acanthocalycium thionanthum subsp. glaucum (F.Ritter) Lodé | Argentina |
 | Acanthocalycium thionanthum subsp. ferrarii (Rausch) Schlumpb. | Argentina (Tucumán). |
 | Acanthocalycium thionanthum subsp. thionanthum | Argentina |
Acanthocalycium thionanthum is widespread in the Argentine provinces of Salta, Tucumán and Catamarca at altitudes of 1500 to 3000 meters.
The first description as Echinocactus thionanthus by Carlos Luis Spegazzini was published in 1905. [4] Curt Backeberg placed the species in the genus Acanthocalycium in 1936. [5] The specific epithet thionanthum is derived from the Greek words theion for 'sulfur' and anthos for 'flower' and refers to the flower color of the species. Further nomenclature synonyms are Lobivia thionantha (Speg.) Britton & Rose (1922), Echinopsis thionantha (Speg.) Werderm. (1931) and Echinopsis thionantha (Speg.) D.R.Hunt (1987).
Acanthocalycium is a genus of cactus consisting of several species from Argentina, Bolivia, Brazil, Paraguay and Uruguay. The taxon name comes from Greek akantha and kalyx, which refers to the spines on the floral tubes.
Echinopsis oxygona, also known as Eyries cactus, Easter lily cactus or sea-urchin cactus, is a species of flowering plant in the cactus family Cactaceae, native to South Brazil, Uruguay and northern Argentina. Its features include many robust spines, spherical shape, and a large flower, with sharply pointed lavender or white petals, and a fine faint scent.
Chamaecereus silvestrii is a species of cactus from northwestern Argentina and Bolivia. Synonyms include Echinopsis chamaecereus and Lobivia silvestrii. It has been called the peanut cactus. This plant should not be confused with Echinopsis silvestrii, a synonym of Echinopsis albispinosa, a species with a very different appearance.
Soehrensia candicans is a species of cactus from northern and western Argentina. It has large fragrant white flowers that open at night.
Lobivia backebergii is a species of flowering plant in the cactus family Cactaceae, native to eastern Bolivia and southern Peru.
Cleistocactus morawetzianus is a species of columnar cactus in the genus Cleistocactus, endemic to Peru.
Gymnocalycium baldianum, the spider-cactus or dwarf chin cactus, is a species of flowering plant in the cactus family Cactaceae, native to the Catamarca Province in Argentina.
Acanthocalycium spiniflorum is a species of flowering plant in the cactus family Cactaceae from Argentina.
Oreocereus trollii, commonly known as the Old Man of the Andes cactus, is a species of cacti native to Argentina and Bolivia. Though listed as Least Concern by the IUCN, the plant is collected extensively, and in some areas is threatened.
Lobivia ancistrophora is a species of cactus. It has a globular shape, few spines, with large, white flowers attached to long, green tubes. It occurs in Bolivia, at altitudes of 600–1800 metres. Under its synonym Echinopsis ancistrophora it has gained the Royal Horticultural Society's Award of Garden Merit.
Echinopsis densispina, is a species of Echinopsis found in Argentina.
Echinopsis haematantha, is a species of Echinopsis found in Argentina and Bolivia.
Acanthocalycium klinglerianum is a species of cactus endemic to Bolivia.
Setiechinopsis is a monotypic genus of cacti. Its only species, Setiechinopsis mirabilis, is native to Argentina.
Cleistocactus buchtienii is a species of columnar cacti in the genus Cleistocactus.
Acanthocalycium leucanthum is a species of flowering plant in the cactus family Cactaceae from Argentina.
Soehrensia thelegonoides is a species of Soehrensia found in Argentina.
Weberbauerocereus churinensis is a species of cactus in the genus Weberbauerocereus, native to Peru.
Chamaecereus saltensis is a species of cactus from northwestern Argentina.
Soehrensia smrziana is a species of Soehrensia found in Argentina.
Media related to Acanthocalycium thionanthum at Wikimedia Commons
Data related to Acanthocalycium thionanthum at Wikispecies