Polyscias gymnocarpa


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Polyscias gymnocarpa
Species Authority: (Hillebr.) Lowry & G.M.Plunkett
Common Name(s):
English Koolau Tetraplasandra
Pterotropia gymnocarpa Hillebr.
Tetraplasandra gymnocarpa (Hillebr.) Sherff

Assessment Information [top]

Red List Category & Criteria: Critically Endangered C2a ver 2.3
Year Published: 1998
Date Assessed: 1998-01-01
Needs updating
Assessor(s): World Conservation Monitoring Centre

Geographic Range [top]

Range Description: Confined to the Koolau Mts., Oahu.
United States (Hawaiian Is.)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The species has become increasingly scarce and is now restricted to 16 subpopulations. Few subpopulations exceed four individuals, although trees can be overlooked when infertile.

Habitat and Ecology [top]

Habitat and Ecology: Forested summit ridges.
Systems: Terrestrial

Threats [top]

Major Threat(s): Invasive plants and feral pigs continue to put serious pressure on remaining populations.

Conservation Actions [top]

Conservation Actions: The species is listed under the US Endangered Species Act.

Citation: World Conservation Monitoring Centre 1998. Polyscias gymnocarpa. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 05 September 2015.
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