''Haplostachys'' (honohono) is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

s in the mint family, Lamiaceae, first described as a genus in 1888. The entire genus is

endemic Endemism is the state of a species being found 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 found else ...

to the Hawaiian Islands, 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 ''Haplostachys haplostachya'' is a rare species of flowering plant in the mint family known by the common names ''honohono'' or Hawaiian mint. It is endemic to Hawaii, where it is now limited to the island of Hawaii and has been extirpated from ...

'' (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