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Coordinates: 20°N 156°W / 20°N 156°W / 20; -156

The Hawaiian tropical high shrublands are a tropical savanna ecoregion in the Hawaiian Islands. They cover an area of 1,900 km2 (730 sq mi) on the upper slopes of the volcanoes Mauna Kea, Mauna Loa, Hualālai, and Haleakalā. They include open shrublands, grasslands, and deserts. Shrubland species include ʻāheahea (Chenopodium oahuense), ʻōhelo ʻai (Vaccinium reticulatum), naʻenaʻe (Dubautia menziesii), and ʻiliahi (Santalum haleakalae). Alpine grasslands are dominated by tussock grasses, such as Deschampsia nubigena, Eragrostis atropioides, Panicum tenuifolium, and pili uka (Trisetum glomeratum). Deserts occur on the coldest and driest peaks, where only extremely hardy plants such as ʻāhinahina (Argyroxiphium sandwicense) and Dubautia species are able to grow. The nēnē (Branta sandvicensis) is one of the few birds found in alpine shrublands, while ʻuaʻu (Pterodroma sandwichensis) nest in this ecoregion.[2]

Hawaiian tropical high shrublands
Haleakala 7000.jpg
Slopes of Haleakalā, Maui.
BiomeTropical and subtropical grasslands, savannas, and shrublands
BordersHawaiian tropical rainforests and Hawaiian tropical dry forests[1]
Area1,900 km2 (730 sq mi)
CountryUnited States
Conservation statusVulnerable[2]
Global 200No[3]


  1. ^ "Hawaii tropical high shrublands". Bioimages. Vanderbilt University. Retrieved 2011-11-19.
  2. ^ a b "Hawaii tropical high shrublands". Terrestrial Ecoregions. World Wildlife Fund. Retrieved 2011-11-19.
  3. ^ Olson, David M.; Eric Dinerstein (2002). "The Global 200: Priority Ecoregions for Global Conservation" (PDF). Annals of the Missouri Botanical Garden. 89: 199–224. doi:10.2307/3298564.

Hawaiian tropical high shrublands Hawaiʻi
Hawaiian tropical low shrublands Hawaiʻi
Northwestern Hawaii scrub Hawaiʻi