Regularity: Regularly occurring
Global Range: Endemic to Northern Kauai.
Habitat and Ecology
Comments: Moist and wet forests in gulch bottoms.
Number of Occurrences
Note: For many non-migratory species, occurrences are roughly equivalent to populations.
Estimated Number of Occurrences: 1 - 5
Comments: 2 current (between 1982 and 1997) and 1 historical occurrence.
IUCN Red List Assessment
Red List Category
Red List Criteria
- Needs updating
- 1997Endangered(Walter and Gillett 1998)
National NatureServe Conservation Status
Rounded National Status Rank: N1 - Critically Imperiled
NatureServe Conservation Status
Rounded Global Status Rank: T1 - Critically Imperiled
Reasons: Recorded from only a few locations in northern Kauai. It is currently known from 2 occurrences, totaling fewer than 200 individuals. It is threatened by feral pigs and alien plants.
Date Listed: 10/10/1996
Lead Region: Pacific Region (Region 1)
Listing status: E
For most current information and documents related to the conservation status and management of Hibiscus waimeae hannerae, see its USFWS Species Profile
Comments: Major threats include habitat degradation by feral pigs and competition with alien plant species (Clidemia, Lantana).
Biological Research Needs: Population biology and ecology.
Names and Taxonomy
Comments: GENUS FOUND IN TROPICAL AND SUBTROPICAL REGIONS OF THE WORLD, SPECIES ENDEMIC TO NORTHERN AND WESTERN KAUAI. TWO VARIETIES RECOGNIZED BY WAGNER ET AL.