i had thought that also, with mine i have taken cuttings from it a few times and shared them with friends who admired it ,its inside all winter and it only blooms once i bring it outside in summer

you're the only other person i know that may have the same cactus i do hahaha, my parents had a vacation home in florida where they retired to, when the died i took a cutting of the cactus for something to remind me of them and our vacation home, as i had told daniel it only bloomed once in twenty years, but that was in a very humid climate in daytona bch. fla. but since i have had it it has bloomed almost every year here in ohio...do you know what the name of this cactus is?

peace
matt