Cactuspedia home | E-mail | Photo gallery | Dictionary | Search 

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

  Astrophytum myriostigma
quadricostatum nudum
CACTUSPEDIA       

 


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.

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.
 

Photo of conspecific taxa, varieties, forms and cultivars of Astrophytum myriostigma:
Family: Cactaceae (Cactus Family)

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

 

 







 

Cactuspedia home | E-mail | Photo gallery | Dictionary | Search 

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