Phyllostegia kaalaensis, the Kaala phyllostegia, is a species of flowering plant in the mint family, Lamiaceae, that is endemic to the island of Oʻahu in Hawaiʻi. It can be found in mesic forests on the slopes of the Waiʻanae Range at elevations of 374–796 metres (1,227–2,612 ft).
Phyllostegia is a genus of flowering plant in the mint family, Lamiaceae, first described in 1840. It is native to certain islands in the Pacific. Phyllostegia glabra var. lanaiensis, became extinct before 2021 and was delisted from the Endangered Species Act based on extinction.
- Phyllostegia ambigua(A.Gray) Hillebr - Hawaii Big Island, Maui
- Phyllostegia bracteataSherff - Maui
- Phyllostegia brevidensA.Gray - Hawaii Big Island, Maui
- Phyllostegia electraC.N.Forbes - Kauai
- Phyllostegia floribundaBenth - Hawaii Big Island
- Phyllostegia glabra (Gaudich.) Benth. - Hawaiian Islands
- Phyllostegia grandiflora(Gaudich.) Benth - Oahu
- Phyllostegia haliakalaeWawra - Maui, Molokai
- Phyllostegia helleriSherff - Wai'alae Valley of Kauai
- †Phyllostegia hillebrandiiH.Mann ex Hillebr - Maui but extinct
- Phyllostegia hirsutaBenth. - Oahu
- Phyllostegia hispidaHillebr. - Molokai
- Phyllostegia kaalaensisH.St.John - Oahu
- Phyllostegia kahiliensisH.St.John - Kauai
- Phyllostegia knudseniiHillebr. - Kauai
- Phyllostegia macrophylla(Gaudich.) Benth. - Hawaii Big Island, Maui
- Phyllostegia manniiSherff - Molokai, Maui
- Phyllostegia micranthaH.St.John - Oahu
- Phyllostegia mollisBenth. - Hawaiian Islands
- Phyllostegia parvifloraBenth. - Hawaiian Islands
- Phyllostegia pilosaH.St.John - Hawaiian Islands
- Phyllostegia racemosaBenth. - Hawaiian Islands
- Phyllostegia renovansW.L.Wagner - Kauai
- †Phyllostegia rockiiSherff - Maui but extinct
- Phyllostegia stachyoidesA.Gray - Hawaiian Islands
- †Phyllostegia tahitensisNadeaud - Tahiti but extinct
- Phyllostegia tongaensisH.St.John - Tonga
- †Phyllostegia variabilisBitter - Midway Islands but extinct
- Phyllostegia velutina(Sherff) H.St.John - Hawaii Big Island
- Phyllostegia vestitaBenth. - Hawaii Big Island
- Phyllostegia waimeaeWawra - Kauai
- Phyllostegia warshaueriH.St.John - Hawaii Big Island
- Phyllostegia wawranaSherff - Kauai
- Phyllostegia × yamaguchiiHosaka & O.Deg. - Oahu (P. glabra × P. hirsuta)
Phyllostegia mollis, the Waianae Range phyllostegia, is a species of flowering plant in the mint family, Lamiaceae, that is endemic to Hawaiʻi. It can be found in mesic and wet forests at elevations of 450–1,830 metres (1,480–6,000 ft) on the islands of Maui and Oʻahu. Some authors consider it to be an Oahu endemic, with the Maui populations belonging to a separate species, Phyllostegia pilosa. By 2003 there were fewer than 40 individuals remaining. It is threatened by habitat loss.
Melicope knudsenii, commonly known as Olokele Valley melicope or Knudsen's melicope, is a species of flowering plant in the family Rutaceae, that is endemic to Hawaii. It inhabits montane mesic forests dominated by Acacia koa, Metrosideros polymorpha, and Dicranopteris linearis on Kauaʻi and East Maui (Auwahi). Associated plants include Syzygium sandwicensis, Cheirodendron trigynum, Myrsine lessertiana, Ilex anomala, Alphitonia ponderosa, Zanthoxylum dipetalum, Kadua terminalis, Pleomele aurea, Bobea spp., Tetraplasandra waimeae, Xylosma hawaiensis, Eurya sandwicensis, Psychotria mariniana, Melicope anisata, Melicope barbigera, Planchonella sandwicensis, Dodonaea viscosa, and Dianella sandwicensis. It is threatened by habitat loss. Like other Hawaiian Melicope, this species is known as alani. This is a federally listed endangered species of the United States.
Melicope pallida, the pale melicope, is a species of tree in the family Rutaceae. It is endemic to the Hawaiian Islands. It is threatened by habitat loss. It is a federally listed endangered species of the United States. Like other Hawaiian Melicope, this species is known as alani.
Cyanea eleeleensis was a rare species of flowering plant in the bellflower family known by the common name Eleele cyanea. It was endemic to Kauai, where it has been declared extinct. It was federally listed as a critically endangered species of the United States in 2010. Like other Cyanea it is known as haha in Hawaiian.
Cyanea recta is a rare species of flowering plant in the bellflower family known by the common names upright cyanea and Kealia cyanea. It is endemic to Hawaii, where it is known only from the island of Kauai. It is a federally listed threatened species of the United States. Like other Cyanea it is known as haha in Hawaiian.
Delissea rhytidosperma, is known by the common names Kauai delissea, Kauai leechleaf delissea, and leechleaf delissea. It is a rare species of flowering plant in the bellflower family, that is endemic to Hawaii where it is known only from the island of Kauai. It is critically endangered or extinct in the wild.
Isodendrion longifolium is a rare species of flowering plant in the violet family known by the common names longleaf isodendrion and aupaka. It is endemic to Hawaii, where it is known from fewer than 1000 individuals on the islands of Kauai and Oahu. It is a federally listed threatened species of the United States.
Lysimachia filifolia is a rare species of flowering plant in the Primulaceae known by the common name Wailua River yellow loosestrife. It is endemic to Hawaii, where there are two populations on Oahu and one on Kauai. It is a federally listed endangered species of the United States.
Phyllostegia velutina is a rare species of flowering plant in the mint family known by the common name velvet phyllostegia. It is endemic to Hawaii, where it is limited to the island of Hawaii, including the slopes of Mauna Loa and Mauna Kea. It is a federally listed endangered species of the United States.
Phyllostegia warshaueri is a rare species of flowering plant in the mint family known by the common name Laupahoehoe phyllostegia. It is endemic to Hawaii, where it is limited to the island of Hawaii. It is a federally listed endangered species of the United States.
Phyllostegia wawrana is a rare species of flowering plant in the mint family known by the common name fuzzystem phyllostegia. It is endemic to Hawaii, where it is limited to the island of Kauai. It is a federally listed endangered species of the United States.
Melicope rostrata, synonym Platydesma rostrata, is a rare species of flowering plant in the citrus family, known by the common name pilo kea lau li'i. It is endemic to Hawaii, where there are only about 100 individuals remaining on island of Kauai. It was federally listed as an endangered species of the United States in 2010.
Poa sandvicensis is a rare species of grass known by the common name Hawaiian bluegrass. It is endemic to Hawaii, where it is limited to the island of Kauai. It is threatened by the loss and modification of its habitat. It is a federally listed endangered species of the United States.
Poa siphonoglossa is a rare species of grass known by the common names Kauai bluegrass and island bluegrass. It is endemic to Hawaii, where it is limited to the island of Kauai. It is threatened by the loss and modification of its habitat. It is a federally listed endangered species of the United States.
Remya kauaiensis is a rare species of flowering plant in the family Asteraceae, known by the common name of Kauai remya. It is endemic to Hawaii, where it is known only from the island of Kauai. It is threatened by the degradation of its habitat. It is a federally listed endangered species of the United States.
Silene lanceolata is a rare species of flowering plant in the family Caryophyllaceae known by the common names Kauai catchfly and lanceolate catchfly. It is endemic to Hawaii, where it is known only from Oahu, Molokai, and Hawaii, having been extirpated from Kauai and Lanai. It is threatened by the degradation of its habitat and it is a federally listed endangered species of the United States.
Solanum incompletum is a rare species of flowering plant in the family Solanaceae known by the common names thorny popolo and popolo ku mai. It is endemic to Hawaii, where it occurs today on the islands of Maui, Lanai, and Hawaii. It is threatened by the destruction and degradation of its habitat. It is a federally listed endangered species of the United States.
Solanum sandwicense is a rare species of flowering plant in the nightshade family known by the common names Hawai'i horsenettle and popolo 'aiakeakua. It is endemic to Hawaii, where it occurs today on the islands of Kauai and Oahu. It is threatened by the destruction and degradation of its habitat. It is a federally listed endangered species of the United States.
