Another endemic genus, Kokia, comprises four species of trees.
Three endemic species of the pantropical genus, Abutilon occur in Hawaii: A. eremitopetalum, A. menziesii, and A. sandwicense; all are listed as endangered.
), whose bright yellow flowers are certainly hibiscus-like, include one endemic: G. tomentosum, uncommon but found in dry places on all the main islands except Hawaii.
The widespread milo (Thespesia populnea) is an indigenous tree with yellow and maroon flowers.
South Korea's national flower is the Hibiscus syriacus which is widely found in Hawaii, too.