It has been reported that trees from areas of heavy rain produce straight grain, while those at higher elevations produce more figured wood. Koa is the best known wood from the Hawaiian Islands.

HILO, Hawaii — The rising value of koa wood--used for everything from Hawaiian canoes to hand-crafted ukuleles--has led to increasing thefts and a black market for the traditional hardwood ...

HONOLULU (HawaiiNewsNow) - An acoustic guitar made from koa wood produces a musical treat for the eyes and ears, but they’re not so easy to come by. Now, a guitar company is spearheading a ...

A 1,200-acre koa forest in Ka‘u is almost ready to be ... In order to sustainably harvest wood from the forest, the plan states that trees will only be felled selectively.