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         It has the great merit of flowering very early in the 
        season, January-February.
          Photo of conspecific taxa, varieties, 
        forms and cultivars of M. coahuilense.
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        | Family:  
        
        
        
        Cactaceae (Cactus 
        Family) |  
        | Scientific name:  
         Mammillaria 
        coahuilensis subsp. albiarmata (Boed.) 
        D.R.Hunt 1998
 
        
        
        
        Conservation status: Listed in
        
        CITES appendix 2. |  
        | Synonyms: 
          Mammillaria albiarmata 
          Boed. 1935Porfiria coahuilense 
          Boed. 1926 |  
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        Mr. Reppenhagen regards Mammillaria albiarmata as a synonym of 
        Mammillaria coahuilensis whereas Dr. Hunt asserts that it is a form of 
        it with more numerous radial spines.  
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  Cultivation: This species 
        has few special demand and whatever view one adopts it is worth a place 
        in every Mammillaria collection. Be careful with watering, which all thick rooted species require (rot 
        sensitive), and patience to match its slow growth. During the winter 
        rest, the plant may pull near the surface of the potting mix.
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