Sulcorebutia arenacea ?

 

 
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Flora of Chandigarh : Sulcorebutia candida from Chandiagarh Botanical Garden: Sulcorebutia candida
From Chandigarh Botanical Garden
ball like plant about 15-20 cm high flowers not seen
Conformation needed
I couldn't find any name as Sulcorebutia candida.
Closest is Sulcorebutia candiae (Cárdenas) Buining & Donald as per the Plant List:
   
 
References:
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