Acharagma
Acharagma
6
species Cactaceae
Morphological Summary
Genus of small globular cacti endemic to northeastern Mexico, with two accepted species. Related to Escobaria and Mammillaria, they are distinguished by unique floral and seed characters: seeds with a well-developed aril and flowers emerging from the apex. They inhabit arid limestone slopes of the Chihuahuan Desert and the mountain ranges of northeastern Mexico.
Distribution Endemic to northeastern Mexico (Coahuila, Nuevo León, Tamaulipas).
Conservation Both species Vulnerable or Endangered due to very restricted distribution and illegal collection.
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eco
SpeciesEndemic
Acharagma aguirreanum
Aguirre's acharagma
Specimen ID RN-ACHRGM-00003
Origin México
Type species
eco
Crested formCollection rarity
Acharagma aguirreanum f. cristata
Crested Aguirre's acharagma
Specimen ID RN-ACHRGM-00004
Origin México
Type crested form
eco
Acharagma aguirreanum (Glass & R.A.Foster) Glass
Aguirre's Acharagma
Specimen ID RN-ACHRGM-00001
Origin México (Coahuila, Nuevo León: laderas calcáreas áridas)
Type Mexican miniature globular cactus
eco
SpeciesEndemic
Acharagma roseanum
Rose acharagma
Specimen ID RN-ACHRGM-00005
Origin México
Type species
eco
Acharagma roseanum (Boed.) E.F.Anderson
Rosy Acharagma
Specimen ID RN-ACHRGM-00002
Origin México (Coahuila, Nuevo León, Tamaulipas: matorrales xerófilos calcáreos)
Type Mexican miniature globular cactus
eco
Crested formCollection rarity
Acharagma roseanum f. cristata
Crested rose acharagma
Specimen ID RN-ACHRGM-00006
Origin México
Type crested form