Syzygium sandwicense is a species of flowering plant in the myrtle family, Myrtaceae, that is endemic to Hawaii. Common names include ʻŌhiʻa ha, Hā, and Pāʻihi. It is normally a large tree, reaching a height of 18m (59feet) and a trunk diameter of 0.9m (03feet), but is a shrub on exposed ridges. ʻŌhiʻa ha inhabits coastal mesic forests, mixed mesic forests, wet forests, and bogs at elevations of 230– on most main islands.