Scientific Name: Acacia Koa
Koa is sort of a mysterious plant to ethnobotanists as Koa is found no where else in Polynesia. Its closest relative is found in Australia.
Koa wood was used for everything from spears to surfboards. It was most importantly used for waʻa or canoe. Koa wood was not used for food as the resin caused a bitter taste.
Handy, Edward Smith Craighill., and Elizabeth Green. Handy. Native Planters of Old Hawaii: Their Life, Lore and Environment. Bernice P. Bishop Museum, 1972.
Pukui, Mary Kawena. Olelo Noeau: Hawaiian Proverbs and Poetical Sayings . Bishop Museum Press.