Astrophytum myriostigma

A nice sized specimen that
goes in the garden this year

     Astrophytum myriostigma, known as the Bishops Cap for it's distinctive shape, is probably the most recognized of the Astrophytums. It comes from the highland areas of central and northern Mexico. It is a globular cactus that becomes somewhat columnar with age, reaching a height of 3 to 4 feet and 8 to 10 inches in diameter. The typical form is five ribbed but cultivars exist with anywhere from two to six. Countless tiny flecks cover the plants body like white satin, though a fleckless form known as A. myriostigma v. nudum is also popular. Throughout most of the spring and summer months it will produce 2 inch yellow flowers. The specimen shown above is about full grown in girth but has not become columnar yet. It flowered for me in March. Click a thumbnail below for other pics.

First flower


And one more

Cultivar "Haku-un"

View from the top

Cultivar "Onzuka"


Cultivar "Lotus Land"


Another "Onzuka"


Another view

Columnare minima

All images and text are copyright 2005-Present, D.S. Franges, unless otherwise noted.