Is this Mammillaria magnimamma or something similar? Found at big box store sold on sale with a pot that is not appropiate for any plant, let alone a cactus. Will this get bigger, or just cluster?
Is this Cleistocactus? Or Espostoa?
Another end of season cactus from Lowe's. Was sold as a "Snow Pole" and as an Espostoa. This is 4" tall.
Certainly looks more like Cleistocactus strausii than Espostoa to me.