I did see a number of photographs that are clearly the same flower and a number that are somewhat ambiguous. The Central Florida Chapter of the American Hibiscus Society has a wonderful capture on their home page but it's not labelled! Come on! Since our Florida house is in central Florida, I'll eventually join this society.
If you go online and look at images of H. rosa-sinensis cultivars you'll see photographs of amazing multi-colored pinwheel flowers, ruffled flowers, dark purple flowers approaching black: all sorts of outlandish types and colors. You almost never never see those in a nursery or box store. Except last year Home Depot carried this plant. Logee's used to, and still does,list a good selection of these exotics; we've grown our share of 4" plants to 4 feet.