Opuntia sp. - Cacti and Succulents

Opuntia sp.

Kingdom: PlantaeI may be misidentifying this. It has thin, drooping, clumping columns, up to five inches long. I have a number of these. Only once a clmp went into bloom. As I remember the flowers were blue, similar to echinopsis in shape and size.

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The identifications on these pages are tentative

I would appreciate any corrections