[Identification] Tropical Hibiscus name?

My wife bought a tropical hibiscus today, but we are not sure what type it is. I called the garden center and they said they do not know. All they can say is that it is a "Tropical Hibiscus." I thought it looked like a tigers paw, but then I think I am wrong, because there is no yellow around the edge.


Thank you in advance.

 

Try this link:
http://americanhibiscus.org/

 

Thank you for the reply.

My 8 year old daughter found it on another site. It is a Hibiscus rosa-sinensis.

http://davesgarden.com/guides/pf/go/413/

 

And that is one of the base species. Hybridizers have used that one for many years to create many of the hybrid forms they sell.

 

Thank you.