This plant has been grown on it's own roots and is 7.5cm in diameter.
This plant has been grafted and has a diameter of 8cm.
A new type.
Original Onzuka seedlings. photo by Mr Tsutomu Onzuka
One of the primary seedlings by Mr.Onzuka, 30cm high and 20 years old. Mr.Kataoka's collection
Close up for flecks comparision
Astrophytum myriostigma (SB262)