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Mammillaria echinocactus echinopsis before blooming. The buds are becoming visible around the last ring of wooly aeroles. This picture was taken on January 20, 2013.

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This is the same plant on February 13, 2013.  The buds are beginning to open.

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On February 19, 2013, more flowers are showing with more on the way, as you can see many buds popping out of the top of the cactus.