Wiliwili Tree, Erythrina Sandwicensis, is a threatened endemic plant of the Hawaii Islands.
Erythrina sandwicensis, commonly known as wiliwili, is the only Erythrina endemic to the Hawaiian Islands. The wood, seed and flowers were traditionally used in Hawaii, and the tree is integral to many Hawaiian legends and proverbs. A unique characteristic of the species is the flower color variation within natural populations. These trees are threatened on every island. Oahu lost thousands of trees since 2005. If you ever happen to come across one of these trees standing alone in the midst of an arid ranch land full of lava, you will understand that they are survivors. On closer look you will note that young trees are very rare.