The Hawaiian name is pronounced as ah-wah-poo-hee or Shampoo Ginger. This falls in line with some of Parker's medicinal plants. It was used in various forms to treat problems like a toothache or indegestion and they even made a paste with it and the Noni fruit to treat severe sprains.
They would also use the leaves of the plants to add flavor to meats.
The Hawaiians would use the "fragrant, slimy juice juice" from the flower as a shampoo, hence the name, shampoo ginger. They also used to drink the slimy juice when they were thirsty. I don't think you can do that with today's shampoos. LOL