CPC Plant Profile: White Kauai Hibiscus
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Plant Profile

White Kauai Hibiscus (Hibiscus waimeae ssp. hannerae)

  • Global Rank: T1 - Critically Imperiled
  • Legal Status: Federally Endangered
  • Family: Malvaceae
  • State: HI
  • Nature Serve ID: 136416
  • Date Inducted in National Collection:

gray-barked tree

Participating Institutions
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Center for Plant Conservation
  • 12/02/2021
  • Reintroduction

The purpose of this project was to establish additonal sub-populations of Hibiscus waimeae ssp. hannerae on managed conservation land owned by National Tropical Botanical Garden. Roughly 300 individuals were planted throughout Limahuli Valley between 1997 and 2003. Most originated from seeds collected from wild plants in Limahuli Valley, but some were clones of the wild trees. All plants were planted into managed restoration sites in areas away from the wild occurrences. Survival rates were nearly 90% after 5 years, with most plants overtopping weedy competitors. Plants flower and produce abundant seed crops but very little recruitment has been observed.

  • 01/01/2010

pigs competition with alien plant species risk of extinction from naturally occurring events and/or reduced reproductive vigor due to the small number of remaining populations

  • 01/01/2010

ca 75 individuals in 2 populations two populations with 75 to 125 individuals arefound on State and private land

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Taxon Hibiscus waimeae ssp. hannerae
Authority (O.& I. Deg.) D. Bates
Family Malvaceae
CPC Number 8772
ITIS 524148
Common Names White Kauai Hibiscus | white Kauai rosemallow | koki'o ke'oke'o
Associated Scientific Names Hibiscus waimeae ssp. hannerae | Hibiscus waimeae var. hannerae
Distribution NA
State Rank
State State Rank
Hawaii S1

typically grows in diverse mesic forest at elevations between 1,960 and 2,600 fr.

Ecological Relationships

Common Name Name in Text Association Type Source InteractionID
Lead Institution State Reintroduction Type Year of First Outplanting
National Tropical Botanical Garden Hawaii Reinforcement 1997

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