Biology:Acharagma

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Short description: Genus of cacti

Acharagma
Escobaria roseana.jpg
Acharagma roseana
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Acharagma
(N.P.Taylor) Zimmerman ex Glass[1]
Species

See text.

Acharagma is a genus of two cactus species from northern Mexico.[1]

Description

These cacti are usually solitary but sometimes occur in small clusters. The globose stems tend to be about 3–7 cm in diameter. The ribs have tubercles, with ungrooved areoles. The flowers are at the stem tips, and range from cream to pink and yellow.

The genus is of relatively recent creation, the species originally being described as part of Escobaria, although recognized as a separate section by Nigel Taylor in 1983, and raised to a genus by Charles Glass in 1998.

Species

(As of December 2021), Plants of the World Online accepts two species.[1] A third possible species, A. huasteca, described in 2011, is considered to be a synonym of Acharagma roseanum subsp. galeanense.[2]

Image Scientific name Distribution
Acharagma aguirreanum 01.jpg Acharagma aguirreanum (Glass & R.A.Foster) Glass Coahuila de Zaragoza, Mexico
Escobaria roseana.jpg Acharagma roseanum (Boed.) E.F.Anderson Coahuila de Zaragoza, Nuevo Leon, Mexico

References

  1. 1.0 1.1 1.2 "Acharagma (N.P.Taylor) Zimmerman ex Glass", Plants of the World Online (Royal Botanic Gardens, Kew), https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:1201462-2, retrieved 2021-12-02 
  2. "Acharagma huasteca Elhart", Plants of the World Online (Royal Botanic Gardens, Kew), https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77112450-1, retrieved 2021-12-02 
  • Edward F. Anderson, The Cactus Family (Timber Press, 2001), pp. 108–109
  • Zsolt Elhart, CactusWorld 29(2): 105. 2011

External links

Wikidata ☰ Q137923 entry