Metrosideros polymorpha, the ōhia lehua, is a species of flowering evergreen tree in the myrtle family, Myrtaceae, that is endemic to the six largest islands of Hawaii. It is a highly variable tree, being tall in favorable situations, and a much smaller prostrate shrub when growing in boggy soils or directly on basalt. It produces a brilliant display of flowers, made up of a mass of stamens, which can range from fiery red to yellow. Many native Hawaiian traditions refer to the tree and the forests it forms as sacred to Pele, the volcano goddess, and to Laka, the goddess of hula. Ōhia trees grow easily on lava, and are usually the first plants to grow on new lava flows. It is a common misconception that the word ōhia is used to refer to the tree and that the word lehua refers only to its flowers. The Hawaiian Dictionary (Pukui and Elbert 1986: 199) defines lehua with these words: "The flower of the ōhia tree... also the tree itself [emphasis added]." Thus the Metrosideros polymorpha may be referred to correctly as a lehua tree, or as an ōhia lehua, or simply an ōhia. Distribution Metrosideros polymorpha is the most common native tree in the Hawaiian Islands, tolerating a wide range of soil conditions, temperature, and rainfall. It grows from sea level right up to the tree line at elevations of and is commonly found in moist and dry forests, high shrublands, and is a colonizer of recent lava flows. It is relatively slow growing. Dominant in cloud forests above , the tree is also common in seasonally wet forests, where it may be dominant or form mixtures with the native Acacia koa. Habitat Metrosideros polymorpha may occur as a tall tree or a prostrate shrub, and everything in between. Preferred soils are acidic to neutral (pH 3.6-7.4) and either a Histosol, Mollisol, Podsol, Oxisol, Ultisol, or Alfisol. Rainfall of per year is favored, but ōhia can grow in dry forests that receive as little as or bogs that get more than of rain. On moist, deep soils, ōhia grows to high. Specimens reaching high are on record. The trunk varies in form. In some trees, it is straight and smooth; in others, it is twisted and prominently fluted. Trees growing in forests often have stilt roots, having germinated on logs or the stems of fallen hāpuu (Cibotium tree ferns), which