A slimy, juicy sap found in the flower bud and in the bark was used as a mild laxative. For babies and young children, the flower buds were used.
For adults and older children, the small white dome-shaped bump inside the bottom of the flower petals was used. The buds were also chewed and eaten for dry-throat. Slime from soaking the bark of the stems was medicine for congested chests. The lubricant quality of the inner bark was of value as an enema or could assist in the passage of a baby at childbirth.
Hibiscus tiliaceus is use to cool fevers and soothe coughs (leaves), treat dysentery (bark), ear infections and abscesses (flowers) and as laxative (bark and flower).
(Kepler,A.K. 1984. Hawaiian Heritage Plants.)
(Lebler, B.A. 1977. Wildflowers of South-Eastern Queensland.)