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  Astrophytum myriostigma cv. HAKUUN "tricostatum" CACTUSPEDIA       

 


Astrophytum myriostigma cv. HAKUUN
Very rare cultivar with only three ribs and characteristic cloud-like white patches on the plant's body.

 

Etymology: "Hakuun" is a  Japanese cultivars, the name means "cloudy sky" and refers to the characteristic maculated epidermis.
"tricostatum"
 just means it has 3 ribs. There are some other varieties of the 3 ribs, such as "nudum tricostatum", "Fukuryiu tricostatum", "Onzuka tricostatum", "Onzuka Fukuryiu tricostatum" etc.

Description: This cultivar only varies from the typical well-known A. myriostigma for the white flecks that condense forming characteristic cloud-like patches and for having four ribs instead of five.
Stem: Triangular to almost spherical, dimension 22-40cm tall, 5-10 cm in diameter.
Spines: None.
Ribs:
3.
Flowers: Like those of A. myriostigma, pale-yellow, shining-silk.
Blooming season: Spring to summer.


Cultivation:
Although regarded as a choice and difficult plant in cultivation it is relatively easy to grow. It is sometime seen as a grafted plant but grows very well on its own roots too. Use mineral, well permeable substratum with little organic matter (peat, humus). Water sparingly from March until October, and keep perfectly dry in winter, at temperatures from 5 to 15 degrees centigrade. (but it is Hardy to -7C for short periods).  In the rest period no high atmospheric humidity!! Sun Exposure: Light shade to full sun.


Propagation: Almost exclusively by seed. Plants are sometimes grafted onto column-shaped cacti.
 

 

 

 

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

Photo gallery Astrophytum

 

Family: Cactaceae (Cactus Family)

Astrophytum myriostigma cv. HAKUUN

Conservation status: Listed in CITES appendix 2.

Origin: Japan,   Garden origin (Nursery produced cultivar)

 


 

 


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



 

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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