Koki’o aka Kokia Cookei
It is considered one of the rarest and most endangered plant species in the world. Even when first found in the 1860s, only three trees could be located. It was presumed extinct in the 1950s when the last surviving seedling perished. However, in 1970, a single plant was discovered on the same Kauluwai estate where the "last" individual grew, presumably a surviving relict of one of the plants previously cultivated there. Although this tree was destroyed in a fire in 1978, a branch that was removed earlier was grafted onto the related, and also endangered, Kokia kauaiensis. Currently there exist about 23 grafted plants.