All the information and photos in cactus art file are now available also in the new the Enciclopedia of Cacti. We hope you find this new site informative and useful.

Discocactus magnimammus HU324 Near Caracol, Mato Grosso do Sul, Brazil 280m
The stem take a nice dark reddish tinge in full sun.

Cultivation: Collectors consider this cactus genus from South America to be rarities as they are not the easiest plant to keep happy. it is rather difficult to grow and frost tender, should be kept at above 15° C if grown on its own roots (8°C if grafted) need full sun or afternoon shade. Young seedlings are generally grafted because they are slow growing and very rot prone when kept on their own roots and though they can’t endure long stretches of total dryness, too much water will rot them, as their weak root systems tend to be inefficient at sucking up water from wet soil. They generally resent being repotted and can take a long time to establish.

Propagation: Seed.
 

Photo of conspecific taxa, varieties, forms and cultivars of plants belonging to the Discocactus eptacanthus complex (This Taxon has lots of synonyms  whit several controversial varieties and subspecies and comprises a multitude of different forms, but where each form is linked to others by populations of plants with intermediate characteristics):

• Discocactus eptacanthus
• Discocactus magnimammus (D. heptacanthus ssp. magnimammus)

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Scientific name:  Discocactus hartmannii (K. Schumann) Britton & Rose ssp. magnimammus (Buin. & Bred.) P. J. Braun & Esteves

Origin:  Between Caracol and Bela Vista (Rio Descalverdo da Caracol) Mato Grosso ca. 280 m.

Conservation status: Listed in CITES appendix 1.

Synonyms:  

• Discocactus heptacanthus ssp. magnimammus (Buining & Brederoo) N.P.Taylor & D.C.Zappi
• Discocactus magnimammus  Buining & Brederoo 1974
• Discocactus hartmannii (Schumann) Britton & Rose
• Discocactus hartmannii var. magnimammus
• Discocactus cephaliaciculosus
• Discocactus diersianus
• Discocactus cephaliaciculosus subsp. nudicephalus

Photo & © copyright by Simone (Italy)

All the information and photos in cactus art file are now available also in the new the Enciclopedia of Cacti. We hope you find this new site informative and useful.