Melicope sp., Rutaceae, alani, alani kuahiwi, endemic. Melicope sp., Rutaceae, alani, alani uahiwi, endemic. Melicope sp., Rutaceae, alani, alani kuahiwi, endemic. Metrosideros polymorpha , Myrtaceae, 'ohia lehua, endemic. This extremely variable species may be mature and flower when only a few inches tall in bogs but may reach towering heights in other habitats.
Leaves range from thick and very pubescent to thin and glabrous.
Flowers may be either red, or less frequently, yellow. The species is the most pervasive native forest tree in Hawaii, found on all the major islands and in a variety of habitats. It is an important food plant for native birds. Morinda trimera , Rubiaceae, noni kuahiwi, endemic. Mucuna gigantea , Fabaceae, ka'e'e, sea bean, indigenous.