Acacia koaia 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 longitudinally arranged in the pod; shorter, straighter phyllodes; and much denser wood. A population on the northern coast of Kauai may be intermediate, but the relationships have not been worked out. "Koaia" wood is claimed to be very different
Acacia melanoxylon 20%. It may also be used for producing decorative veneers. The tree's twigs and bark are used to poison fish as a way of fishing. This tree can also be used as a fire barrier plant, amongst other plants, in rural situations Plain and figured Australian blackwood is used in musical instrument making (in particular guitars, drums, Hawaiian ukuleles, violin bows and organ pipes), and in recent years has become increasingly valued as a substitute for koa wood. Acacia melanoxylon Acacia melanoxylon, commonly known as the Australian blackwood, is an "Acacia" species native in South eastern Australia. The species is