Haplostachys (honohono)US Fish & Wildlife Service species profile, Honohono (Haplostachys haplostachya) is a genus of flowering plants in the mint family, Lamiaceae, first described as a genus in 1888. The entire genus is endemic 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 FamiliesLoeffler, W.; Morden, C.W. 1997. Effects of population fragmentation on genetic variation of Haplostachys haplostachya, an endangered Hawaiian mint. Newsletter of the Hawaiian Botanical Society. 36: 42-46.Sherff, E.E. 1935. Revision of Haplostachys, Phyllostegia, and Stenogyne. Bernice P. Bishop Museum Bulletin. 136: 1-101.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 Genera US Department of Agriculture plant profile Floridata Flowering Plants of Hawaii, Part 23 Lamiaceae (Labiatae)