Espostoa nana Update

This was another cactus I placed in that proverbial bowl. I've posted on this one before, so going into the older posts, you can make a comparison of the size (but that was only in November, so say less than three months, and in winter at that). I've also seen this on websites as Espostoa lanata. It's hard to tell sometimes with all the movement in classification these days (and the bad pictures on the web).