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  Copiapoa humilis forma cristata
 
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Copiapoa humilis cristata
 

Description: This is the nice crested form of Copipoa humilis with olive-green,  or somewhat grey-green, or rarely red-brown stems that forms nice brain-shaped mounds. The apical  line meristem  is somewhat depressed often with white woolly felt. There are several clones and the dimension of the mound varies from 10 cm to 30 cm in diameter (but often more in cultivation, especially if grafted) moreover the transversal thickness of the crests vary from 2 to 8 cm. Given insufficient light and too much water, they grow into great masses of fat, olive-green crests. Given a very bright position, the stems are dark tannish-green, brownish to almost black at times, with red and purple. There are indeed marked differences in sizes, epidermis colour and spines length in plants from different clones, and also the growing condition (especially sun exposure,  water availability and grafting) determine conspicuous differences in habit of cultivate specimens.
Roots: Massive, thickened rootstock going well down into the ground, with a long narrow neck.
Flowers: Yellow, campanulate, scented, about 30 mm long, growing from the centre of the white wool at the apex.
 

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Family: Cactaceae (Cactus Family)

Scientific name:  Echinocactus humilis Philippi Not Pfeiffer,
In: Florula Atacamensis 23. 1860. 1837
 forma cristata

Origin Garden origin (Nursery produced cultivar)

Conservation status: Listed in CITES appendix 2.
 

 


 

Cultivation: Easy to grow, need full sun but should be protected from excessive heat and sun in summer. Require light watering and good drainage. Keep warm and dry in winter to avoid rot. It needs mild heat in winter, avoid any frost.

Propagation: Stems planted as cuttings. Grafting is sometime used to speed growth rate and to create a back-up to plants in collection.

 

Photo of conspecific taxa, varieties, forms of plants belonging to the Copiapoa humilis/taltalensis complex (This Taxon has lots of synonyms (like most copiapoas) with several controversial varieties and subspecies):

 

Photo gallery: Alphabetical listing of Cactus and Succulent pictures published in this site.

Photo gallery COPIAOA



 

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This old page has been moved! Click the link next on the right to enter the new Enciclopedia of Cacti. We hope you find this new site informative and useful.

The Encyclopedia of Cacti