''Haplostachys'' (honohono) is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s in the mint family,

Lamiaceae The Lamiaceae ( ) or Labiatae are a family (biology), family of flowering plants commonly known as the mint, deadnettle, or sage family. Many of the plants are aromatic in all parts and include widely used culinary herbs like basil (herb), ba ...

, first described as a genus in 1888. The entire genus is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to the

Hawaiian Islands The Hawaiian Islands () are an archipelago of eight major volcanic islands, several atolls, and numerous smaller islets in the Pacific Ocean, North Pacific Ocean, extending some from the Hawaii (island), island of Hawaii in the south to nort ...

, although 4 of the 5 known species that have been placed in the genus are now believed to be extinct, the fifth listed as "Critically Imperiled."Kew World Checklist of Selected Plant Families
/ref>US Fish & Wildlife Service. 1979. Determination that three Hawaiian plants are endangered species. Federal Register. 44, 211: 62468 - 62469. ;Species *†'' Haplostachys bryanii'' Sherff - Molokai but apparently extinct *'' Haplostachys haplostachya'' (A.Gray) H.St.John - Kauai, Maui, Hawaii; Critically Imperiled *†'' Haplostachys linearifolia'' (Drake) Sherff - Maui, Molokai but apparently extinct on both islands *†'' Haplostachys munroi'' C.N.Forbes - Lanai but apparently extinct *†'' Haplostachys truncata'' (A.Gray) Hillebr. - Maui but apparently extinct

References

External links

Hawaiian Native Plant GeneraUS Department of Agriculture plant profileFloridata Flowering Plants of Hawaii, Part 23 Lamiaceae (Labiatae)
{{Taxonbar, from=Q3764338 Lamiaceae Lamiaceae genera Endemic flora of Hawaii