Hesperomannia arbuscula 

Scope: Global
Language: English

Translate page into:

Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Asterales Asteraceae

Scientific Name: Hesperomannia arbuscula Hillebr.
Common Name(s):
English Maui Hesperomannia
Taxonomic Notes: Recent taxonomic research has split H. arbuscula into two separate species: H. arbuscula is endemic to the island of Maui, and H. oahuensis is endemic to Oahu island.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered A2ac; B1ab(iii,v); C1+2a(i); D ver 3.1
Year Published: 2003
Date Assessed: 2003-04-30
Needs updating
Assessor(s): Bruegmann, M.M. & Caraway, V.
Reviewer(s): Maunder, M. (Plant Conservation Committee) & Pollock, C.M. (Red List Programme Office)
Hesperomannia arbuscula is endemic to the Hawaiian Islands of Maui and Oahu. There has been an observed population decline of 25–50% over the last three years. The total number of known individuals is less than 25. Main threats to the species are habitat degradation by pigs, competition with alien plant species (prickly Florida blackberry, Christmas berry, Koster's curse, and strawberry guava), predation from rats, and from trampling or collecting by humans.
Previously published Red List assessments:

Geographic Range [top]

Range Description:H. arbuscula is endemic to the island of Maui.
Countries occurrence:
United States (Hawaiian Is.)
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It is found in a very remote area and has around 25 individuals (V.L. Caraway, pers. comm.).
Current Population Trend:Decreasing
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:A small shrubby tree or shrub, known from scattered subpopulations in lowland rainforest.

Threats [top]

Major Threat(s): Feral pigs and introduced plants pose the most serious threats.

Conservation Actions [top]

Conservation Actions: This species is being propagated at the Lyon Arboretum and the National Tropical Botanical Garden (G. Koob and S. Smith, pers. comm., 1997). The species is listed under the US Endangered Species Act.

Citation: Bruegmann, M.M. & Caraway, V. 2003. Hesperomannia arbuscula. The IUCN Red List of Threatened Species 2003: e.T34003A9826564. . Downloaded on 22 September 2018.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided