Phyllostegia knudsenii

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Phyllostegia knudsenii
Status TNC G1.svg
Critically Imperiled  (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Lamiaceae
Subfamily: Lamioideae
Genus: Phyllostegia
Species:P. knudsenii
Binomial name
Phyllostegia knudsenii
Hillebr.

Phyllostegia knudsenii is a rare species of flowering plant in the mint family known by the common name Waimea phyllostegia and Knudsen's phyllostegia. It is endemic to Hawaii, where it is known only from the island of Kauai. [1] It is a federally listed endangered species of the United States.

Lamiaceae family of plants

The Lamiaceae or Labiatae are a family of flowering plants commonly known as the mint or deadnettle family. Many of the plants are aromatic in all parts and include widely used culinary herbs, such as basil, mint, rosemary, sage, savory, marjoram, oregano, hyssop, thyme, lavender, and perilla. Some species are shrubs, trees, or, rarely, vines. Many members of the family are widely cultivated, not only for their aromatic qualities, but also their ease of cultivation, since they are readily propagated by stem cuttings. Besides those grown for their edible leaves, some are grown for decorative foliage, such as Coleus. Others are grown for seed, such as Salvia hispanica (chia), or for their edible tubers, such as Plectranthus edulis, Plectranthus esculentus, Plectranthus rotundifolius, and Stachys affinis.

Endemism Ecological state of being unique to a defined geographic location or habitat

Endemism is the ecological state of a species being unique to a defined geographic location, such as an island, nation, country or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. The extreme opposite of endemism is cosmopolitan distribution. An alternative term for a species that is endemic is precinctive, which applies to species that are restricted to a defined geographical area.

Hawaii State of the United States of America

Hawaii is the 50th and most recent state to have joined the United States, having received statehood on August 21, 1959. Hawaii is the only U.S. state located in Oceania, the only U.S. state located outside North America, and the only one composed entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean.

This is a perennial herb or vine with limp leaves up to 18 centimeters long by 9 wide. The flowers are just under a centimeter long. [2]

This plant was first collected in the 19th century and was not seen again until 1993, when a single plant was found. [2] Three more were found later that year. Four additional plants were found in 1999 and five immature plants were located in 2001. There may be up to fifty plants remaining in unsurveyed areas. [3]

Related Research Articles

<i>Phyllostegia</i> genus of plants

Phyllostegia is a genus of flowering plant in the mint family, Lamiaceae, first described in 1840. It is native to certain island in the Pacific.

  1. Phyllostegia ambigua(A.Gray) Hillebr - Hawaii Big Island, Maui
  2. Phyllostegia bracteataSherff - Maui
  3. Phyllostegia brevidensA.Gray - Hawaii Big Island, Maui
  4. Phyllostegia electraC.N.Forbes - Kauai
  5. Phyllostegia floribundaBenth - Hawaii Big Island
  6. Phyllostegia glabra (Gaudich.) Benth. - Hawaiian Islands
  7. Phyllostegia grandiflora(Gaudich.) Benth - Oahu
  8. Phyllostegia haliakalaeWawra - Maui, Molokai
  9. Phyllostegia helleriSherff - Wai'alae Valley of Kauai
  10. †Phyllostegia hillebrandiiH.Mann ex Hillebr - Maui but extinct
  11. Phyllostegia hirsutaBenth. - Oahu
  12. Phyllostegia hispidaHillebr. - Molokai (Molokaʻi)
  13. Phyllostegia kaalaensisH.St.John - Oahu (Oʻahu)
  14. Phyllostegia kahiliensisH.St.John - Kauai
  15. Phyllostegia knudseniiHillebr. - Kauai
  16. Phyllostegia macrophylla(Gaudich.) Benth. - Hawaii Big Island, Maui
  17. Phyllostegia manniiSherff - Molokai, Maui
  18. Phyllostegia micranthaH.St.John - Oahu
  19. Phyllostegia mollisBenth. - Hawaiian Islands
  20. Phyllostegia parvifloraBenth. - Hawaiian Islands
  21. Phyllostegia pilosaH.St.John - Hawaiian Islands
  22. Phyllostegia racemosaBenth. - Hawaiian Islands
  23. Phyllostegia renovansW.L.Wagner - Kauai
  24. †Phyllostegia rockiiSherff - Maui but extinct
  25. Phyllostegia stachyoidesA.Gray - Hawaiian Islands
  26. †Phyllostegia tahitensisNadeaud - Tahiti but extinct
  27. Phyllostegia tongaensisH.St.John - Tonga
  28. †Phyllostegia variabilisBitter - Midway Islands but extinct
  29. Phyllostegia velutina(Sherff) H.St.John - Hawaii Big Island
  30. Phyllostegia vestitaBenth. - Hawaii Big Island
  31. Phyllostegia waimeaeWawra - Kauai
  32. Phyllostegia warshaueriH.St.John - Hawaii Big Island
  33. Phyllostegia wawranaSherff - Kauai
  34. Phyllostegia × yamaguchiiHosaka & O.Deg. - Oahu (P. glabra × P. hirsuta)

Melicope pallida is a species of tree in the Rutaceae family. 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.

Myrsine knudsenii, the Kokee colicwood, is a species of tree in the primrose family. It is endemic to the island of Kauai in Hawaii. It is threatened by habitat loss.

<i>Cyperus trachysanthos</i> species of plant

Cyperus trachysanthos is a rare species of sedge known by the common names pu`uka`a and sticky flatsedge. It is endemic to Hawaii, where it is known from Kauai and Oahu. It was known from Niihau, Molokai and Lanai, but it has been extirpated from these islands. It is a federally listed endangered species of the United States.

<i>Delissea rhytidosperma</i> species of plant

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 extinct in the wild.

<i>Dubautia plantaginea</i> species of plant

Dubautia plantaginea is a rare species of flowering plant in the aster family known by the common name plantainleaf dubautia. It is endemic to Hawaii where it is the only member of the silversword alliance that is found on all six of the largest islands. Two of the three subspecies are rare and endangered. Like other Dubautia this plant is called na`ena`e.

Exocarpos luteolus is a rare species of flowering plant in the sandalwood family known by the common names leafy ballart or heau. It is endemic to Hawaii, where it is known only from the island of Kauai. There are eight populations remaining, for a total global population of only 39 individuals. The plant was federally listed as an endangered species of the United States in 1994.

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 scopulensis is a rare species of flowering plant in the family Primulaceae known by the common name shiny-leaf yellow loosestrife. It is endemic to Hawaii, where there are two small populations on the island of Kauai. It was federally listed as an endangered species of the United States in 2010.

<i>Cyperus pennatiformis</i> species of plant

Cyperus pennatiformis is a rare species of sedge known by the common name coastal flatsedge. It is endemic to Hawaii, where it grows on the islands of Maui, Kauai, and Laysan. It is a federally listed endangered species of the United States.

Phyllostegia hirsuta is a species of flowering plant in the mint family known by the common names Molokai phyllostegia and hairy phyllostegia. It is endemic to Hawaii, where it is known only from the island of Oahu. It is a federally listed endangered species of the United States.

<i>Phyllostegia parviflora</i> species of plant

Phyllostegia parviflora is a rare species of flowering plant in the mint family known by the common name smallflower phyllostegia. It is endemic to Hawaii, where it is known from Maui, Oahu, and the island of Hawaii. It is a federally listed endangered species of the United States.

Phyllostegia renovans is a rare species of flowering plant in the mint family known by the common name red-leaf phyllostegia. It is endemic to Hawaii, where it is known only from the island of Kauai. It was federally listed as an endangered species of the United States in 2010.

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 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.

<i>Plantago princeps</i> species of plant

Plantago princeps is a rare species of flowering plant in the plantain family known by the common name ale. It is endemic to Hawaii, where it is known from the islands of Hawaii, Kauai, Oahu, Molokai, and Maui. Like other Hawaiian Plantago, it is known as kuahiwi laukahi, or laukahi kuahiwi. It is a federally listed endangered species of the United States.

Schiedea apokremnos is a rare species of flowering plant in the pink family known by the common names Kauai schiedea, Na Pali Coast schiedea, and ma`oli`oli. 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.

Schiedea helleri is a rare species of flowering plant in the pink family known by the common names Heller's schiedea and Kaholuamanu schiedea. 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 was federally listed as an endangered species of the United States in 1996.

Schiedea kauaiensis is a rare species of flowering plant in the pink family known by the common name Kauai schiedea. It is endemic to Hawaii, where it is known only from the island of Kauai. It is threatened by the degradation and destruction of its habitat. It was federally listed as an endangered species of the United States in 1996.

Stenogyne kealiae is a rare species of flowering plant in the mint family known by the common name Keal's stenogyne. It is endemic to Hawaii, where it is known only from the island of Kauai. It was federally listed as an endangered species of the United States in 2010.

References

  1. ↑ Phyllostegia knudsenii. The Nature Conservancy.
  2. 1 2 USFWS. Determination of Endangered or Threatened status for Nineteen Plant Species From the Island of Kauai, Hawaii. Federal Register October 10, 1996.
  3. ↑ USFWS. Phyllostegia knudsenii Five-year Review. June 2009.
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