Acacia koa for up to 25 years. Scarification is needed before "A. koa" seeds will germinate. Koa is endemic to the islands of Hawaii, Molokai, Maui, Lānai, Oahu, and Kauai, where it grows at elevations of . It requires of annual rainfall. Acidic to neutral soils (pH of 4-7.4) that are either an Inceptisol derived from volcanic ash or a well-drained histosol are preferred. Its ability to fix nitrogen allows it to grow in very young volcanic soils. Koa and ōhia lehua ("Metrosideros polymorpha") dominate the canopy of mixed mesic forests. It is also common in wet forests. The koa's trunk was
Koa Kannon Koa Kannon The refers to a statue of Kannon, the bodhisattva of compassion, located atop Mount Izu in Atami, Shizuoka Prefecture, as well as to the temple, formally a religious corporation called the Reihaizan Koa Kannon, which is dedicated to it. Koa Kannon is from the same lineage as the Hokke Shu Jin-Monryu, a breakaway sect of Nichiren Buddhism based in Sanjo in Niigata Prefecture, but it is not formally affiliated with them and is the only independent Buddhist temple in Japan with its own unique history and rites. The temple admits all worshipers regardless of their religion. The temple