Pandanus tectorius is a species of Pandanus (screwpine) that is native to Malesia, Papuasia, eastern Australia, and the Pacific Islands. It grows in the coastal lowlands typically near the edge of the ocean. Common names in English include thatch screwpine, Tahitian screwpine, hala tree and pandanus. The fruit is edible and sometimes known as hala fruit.
Brighamia insignis, commonly known as ʻŌlulu or Alula in Hawaiian, or colloquially as the vulcan palm or cabbage on a stick, is an endangered species of Hawaiian lobelioid in the bellflower family, Campanulaceae. It is native to the islands of Kauaʻi and Niʻihau. This short-lived perennial species is a member of a unique endemic Hawaiian genus with only one other species.
The Hawaiʻi mamo is an extinct species of Hawaiian honeycreeper. It was endemic to Hawaii. It became extinct due to habitat loss, mosquitoes, introduced predators such as the small Indian mongoose, and overcollecting.
The ʻākohekohe, or crested honeycreeper, is a species of Hawaiian honeycreeper. It is endemic to the island of Maui in Hawaiʻi. The ʻākohekohe is susceptible to mosquito‐transmitted avian malaria and only breeds in high‐elevation wet forests.
The kākāwahie or Molokaʻi creeper is an extinct species of Hawaiian honeycreeper. It was found on the Hawaiian island of Molokaʻi in Hawaii.
The Mauna Loa silversword, Argyroxiphium kauense, or Kaʻū silversword, is a rare species of flowering plant in the aster family. It is endemic to the eastern and southern slopes of Mauna Loa on the island of Hawaiʻi. A. kauense occurs in mountainous shrublands, bogs, and open mesic forest. The species is managed by the National Park Service and Hawaiʻi State Department of Forestry and Wildlife. It is a federally listed endangered species of the United States. There are three known populations remaining, for a total of fewer than 1000 individuals.
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 hawaiensis, or manena, is a species of flowering plant in the family Rutaceae, that is endemic to the Hawaiian Islands. It is threatened by habitat loss.
Melicope paniculata, the Lihue melicope, is a rare species of tree in the family Rutaceae. It is endemic to the Hawaiian Islands. Like other Hawaiian Melicope, this species is known as alani.
Shorea revoluta is a species of plant in the family Dipterocarpaceae. It is a tree endemic to Borneo.
Argyroxiphium sandwicense subsp. sandwicense, the Mauna Kea silversword, is a highly endangered flowering plant endemic to the island of Hawaiʻi of Hawaii. It is the "crown jewel" of the volcanic mountain Mauna Kea, from which it derives its English name. The Hawaiian name is ʻahinahina; it applies to silverswords more broadly. The Mauna Kea silversword was once common on the volcano, and extraordinary conservation efforts are being made to preserve the species.
Adenophorus periens is a rare species of fern known by the common name pendant kihi fern. It is endemic to Hawaii, where it is known from one population in Puna on the island of Hawaii and a few occurrences on Kauai and Molokai. The fern occurs in wet mountain forests on volcanic slopes. It grows on trees. There are perhaps 2000 individual plants remaining. This is a federally listed endangered species of the United States.
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.
Cyrtandra giffardii is a rare species of flowering plant in the African violet family known by the common names forest cyrtandra and Giffard's cyrtandra. It is endemic to the island of Hawaii, where it grows on the slopes of Mauna Kea and Mauna Loa. A 1998 estimate places the total remaining population size around 1000 individual plants. It is a tree which grows 2 to 6 meters tall and bears white flowers. It was federally listed as an endangered species in 1994. Like other Hawaiian Cyrtandra it is called ha`iwale.
Lysimachia venosa is a rare species of flowering plant in the family Primulaceae known by the common name veined yellow loosestrife. It is endemic to Hawaii, where it is known only from the island of Kauai. The plant was only collected twice, last in 1911, but in 1991, a branch was discovered that had broken off the steep cliffs above the headwaters of the Wailua River. The branch was from a plant of this species and may have fallen from the summit of Mount Waialeale. No more specimens have been found since and the plant may be extinct, but some experts believe it may still exist in unsurveyed parts of the habitat. It was federally listed as an endangered species of the United States in 2010.
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 waimeae is a rare species of flowering plant in the mint family known by the common name Kauai 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.
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.
Peristylus holochila is a rare species of orchid known by the common name Hawaii bog orchid. It is endemic to Hawaii. It is a federally listed endangered species of the United States.
