''Schiedea helleri'' is a rare species of flowering plant in the family

Caryophyllaceae Caryophyllaceae, commonly called the pink family or carnation family, is a family of flowering plants. It is included in the dicotyledon order Caryophyllales in the APG III system, alongside 33 other families, including Amaranthaceae, Cactacea ...

known by the common names Heller's schiedea and Kaholuamanu schiedea. It 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 elsew ...

Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only stat ...

, where it is known only from the island of

Kauai Kauai, () anglicized as Kauai ( ), is geologically the second-oldest of the main Hawaiian Islands (after Niʻihau). With an area of 562.3 square miles (1,456.4 km2), it is the fourth-largest of these islands and the 21st largest island ...

. It is threatened by the degradation of its habitat. It was federally listed as an

endangered species An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...

of the United States in 1996.Determination of Endangered or Threatened status for Nineteen Plant Species From the Island of Kauai, Hawaii.
''Federal Register'' October 10, 1996. This plant is a

vine A vine (Latin ''vīnea'' "grapevine", "vineyard", from ''vīnum'' "wine") is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas or runners. The word ''vine'' can also refer to such stems or runners themselv ...

growing at least 15 centimeters long. The oppositely arranged leaves have thick blades up to 14 centimeters long by 6 wide and mostly hairless in texture, except for a few hairs near the edges. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

is a branching cluster of flowers. The plant is easily distinguished from other ''Schiedea'' on Kauai, which are not vines. This plant was thought to be

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

until it was rediscovered in 1993.''Schiedea helleri''.
The Nature Conservancy. It occurs in wet forest habitat near a stream at the edge of

Alakai Wilderness Preserve ''HST-2'', formerly named USNS ''Puerto Rico'' and ''Alakai'', is a vessel owned by the United States Navy Military Sealift Command. She was originally Hawaii Superferry's first high-speed ferry. The vessel was later chartered by Bay Ferries ...

. By 2010 there were two populations containing up to 101 plants.USFWS
''Schiedea helleri'' Five-year Review.
August 2010.

References

External links

USDA Plants Profile
haleakalensis Endemic flora of Hawaii {{Caryophyllaceae-stub