I found a closeup of the blooms on corkscrew rush here:
https://www.google.com/search?...
They just don't look the same to me. When mine does bloom, it doesn't look like what I can see in Lynn's photo. But Lynn, you are absolutely correct. The Euphorbia doesn't corkscrew! It was just the stem with tiny leaves that reminded me of that. The other plant I have that is just stem with just the occasional tiny leaf is Spartium junceum 'Spanish Broom', but it doesn't corkscrew either.