". . . the yellow flower is called "Cup of Gold" (Solandra maxima) is a tropical plant native to Mexico and was brought to Hawaii as an ornamental. The elderly lady I work for actually has it growing right behind the swimming pool, it can grow actually quite high. Hope this has been helpful. . . "
Very helpful Ingrid, thank you. Here's a link with more information for anyone wanting to know more or to own one of these beauties: http://davesgarden.com/guides/pf/go/31444/ - Nancy Boudreau