Hibotan

(Gymnocalycium) This group contains 80 variable species. They are natives of South American countries from Argentina, north to Bolivia, Paraguay, Uruguay, and Brazil. The plants range from small stems, 11/2 inches across, to stems 8 inches wide and high. They range in color from blue-green to gray or brown. Most of the species flower profusely and ...
Found on http://www.encyclo.co.uk/local/10004
No exact match found