Acacia koaia "laau melomelo" (fishing lures), "hoe" (paddles), "ihe" (short spears), "pololu" (long spears), "ōō" (digging sticks), "ie kūkū" (square "kapa" beaters), and "papa olonā" ("Touchardia latifolia" scrapers). "Koaia" leaves were used to cover "hale lau koaie" (shelters and permanent sheds). Acacia koaia Acacia koaia, known as koaia or koaie in Hawaiian, is a tree in the pea family, Fabaceae, that is endemic to Hawaii. It is closely related to "koa" ("A. koa"), and is sometimes considered to be the same species. "Acacia koaia" is usually distinguished by growing as a short (rarely more than ), broad, gnarled tree; having the seeds
Koa wilt mortality rate over several years due to Koa wilt. It is also a legume, giving it the ability to form symbiosis with nitrogen fixing bacteria, which has led to efforts to use koa in agroecological systems with crops such as coffee and cacao. Ecologically, koa is an important species because it is one of the few native trees that remains dominant in alien mixed forests on the Hawaiian Islands. Invasive species make up the majority of the State's current plant population. Koa trees also are important because provide a habitat for many native bird species. Historically, there were once two