Hello! I bought a plant at the grocery store (great place to buy, huh?) and there was no stickers of any kind on it. Even to ring it up! So ... I don't know what it is. I've looked through houseplant books, and found a couple that it could be ... but nothing definitive.
As you can see, the leaves are tinged in a reddish purple on the top side, and nearly solid purple on the underside. It is not on a raised stalk like Dracaena, and the roots are mostly green. There's a bit of yellow and orange on the roots, but they look mostly green. There is one brand new root shoot which is white. From the pictures in my houseplant book, it seems a bit more likely to be Cordyline, but except for that one small root, the roots don't seem to be white.