Brighamia rockii


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Brighamia rockii
Species Authority: H.St.John

Assessment Information [top]

Red List Category & Criteria: Critically Endangered 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)
Brighamia rockii is endemic to Molokai, Maui and possibly Lanai. It is currently known from three subpopulations totaling less than 50 mature individuals. Deer, goats, and alien plants are the most serious threats to the species.

Geographic Range [top]

Range Description: Brighamia rockii is endemic to the Hawaiian Islands. It occurs on the Island of Molokai and historically on Maui and Lanai.
United States (Hawaiian Is.)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: A 1-5 m tall succulent with an unbranched, stout, fleshy stem thickened toward the base. Tubular flowers are white and fragrant. Usually found on ledges on exposed steep moist coastal cliffs, with native grasses, shrubs and trees.
Systems: Terrestrial

Threats [top]

Major Threat(s): Threats include deer, goats, introduced plants and, potentially, rats.

Citation: Bruegmann, M.M. & Caraway, V. 2003. Brighamia rockii. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 29 August 2015.
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