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  Astrophytum myriostigma
quadricostatum nudum
CACTUS ART
NURSERY

Cultivation and Mail Sale
of Cacti and Succulents.

 


Astrophytum myriostigma quadricostatum "nudum"
This form has a very characteristic glabrous  stem lacking the white tufts of loose hairy scales typical of the common Astrophytum myriostigma. The smooth green epidermis  show up the felty areoles.

 

Description: A. myriostigma quadricostatum nudum deviates from the well-known typical form for lacking or mostly lacking white flecks, giving it a bright green, blue-green colour.
Stem: Quadrangular to almost spherical,
the plants become  shortly columnar with age.  The stems are smooth and can be over 90 cm tall and 5-10 (-20) cm in diameter.
Spines: None.
Ribs: 4.
Flowers: 5 cm wide (or more), pale-yellow, shining
-silk, unlike the white-spotted plant.
Blooming season: Spring or early summer, They take up to 6 years to bloom.

 

 

Photo of conspecific taxa, varieties, forms and cultivars of Astrophytum myriostigma:

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

Photo gallery Astrophytum

 


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Family: Cactaceae (Cactus Family)

Scientific name:  Astrophytum myriostigma Lemaire
Original description: Cactacearum Genera nova Speciesque novae et omnium in Horto Monvillano cultarum: 4-6 1839

cv. quadricostatum nudum

Origin Both nude and four ribbed plants of Astrophytum myriostigma are occasionally found in a natural habitat, but  the clones actually in cultivation are of garden origin (Nursery produced cultivars).

Conservation status: Listed in CITES appendix 2
 

 


Cultivation:
Although regarded as a choice and difficult plant
, it is not too difficult in a greenhouse, although it grows quite slowly. It is sometime seen as a grafted plant but grows very well on its own roots, too. Use well- permeable mineral soil with little organic matter (peat, humus). Water sparingly from March till October (weekly during summertime, if the weather is sunny enough) , with a little fertilizer added. keep perfectly dry in winter at temperatures from 5 to 15 degrees centigrade. (but it is relatively cold-resistant and hardy to -7 (-10)C for short periods).  In the rest period no high atmospheric humidity!! They need a good amount of light shade to full sun this help to keep the plants healthy, although with slow growth.
 

Propagation: Almost exclusively by seeds that germinate rapidly. Plants are sometimes grafted onto column-shaped cacti.


 


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