Acacia heterophylla 1.4 million years ago. "A. heterophylla" sequences nest within those of the more diverse "A. koa", making the latter species paraphyletic. Both species are descended from an ancestral species in Australia, presumably their sister species, "Acacia melanoxylon"; the means of dispersal to Hawaii and then to Réunion (the latter trip a distance of 18,000 km) is thought to have been seed-carrying by birds such as petrels (the seeds of these species are not adapted for prolonged immersion in seawater). Both species also have very similar ecological niches, which differ from that of "A. melanoxylon". Acacia heterophylla Acacia heterophylla, the highland
Koa Kannon no graves and thus no patrons under the danka system except for the surviving family of the seven war criminals. Koa Kannon is always requesting general help since the only thing maintaining the temple is offering money from visitors, volunteers, and members of support groups. One such association is the Koa Kannon Support Group, which was founded in 1942 by its first president Iwane Matsui and is preserved primarily by local devotees in Atami. There was in addition the Society to Protect the Koa Kannon which was established in 1994, but due to a scandal involving some of its board