Replied by Mama To Many (Tennessee) on 11/17/2015
Dear Vicky,
What we call "beets" are the root of the beet plant. So, "beet" and "beetroot" would be the same thing.
I would look for an Heirloom Variety when ordering seeds.
~Mama to Many~
Replied by Mmsg (Somewhere, Europe) on 11/18/2015
Vicky, yes, they are the same thing. Look here:
http://www.rawfoods-livingfoods.com/beetroot-juice-vs-beet-juice.html