Looks like Bird of Paradise (Strelitzia reginae) to me.

The ones out in my yard look similar to the one the OP
posted, but there's no white striations in the leaves
and they're (the leaves) are thicker. And, well, while
I can't say for certain, I've done a lot of browsing in
the houseplant sections of different stores and I don't
ever recall a Bird of Paradise being sold as a houseplant.
Maybe they just all got snapped up before I got there.

Tracey