{{Short description|Species of flowering plant}} {{Speciesbox |image = |status = G1 |status_system = TNC | status_ref = <ref name="TNC status 27 May 2022">{{Cite web|date=2022 |url= https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.134700|access-date=27 May 2022 |website=NatureServe Explorer Cyanea undulata |publisher=NatureServe|title= NatureServe Explorer }}</ref> |genus = Cyanea |species = undulata |authority = Forbes }}
'''''Cyanea undulata''''' is a rare species of flowering plant in the bellflower family known by the common names '''wavy cyanea''' and '''leechleaf cyanea'''. It is endemic to the island of Kauai, where it is in rapid decline.<ref name=five>USFWS. [http://ecos.fws.gov/docs/five_year_review/doc1774.pdf ''Cyanea undulata'' Five-year Review.] January 2008.</ref> It is a federally listed endangered species of the United States. Like other ''Cyanea'' it is known as '''''haha''''' in Hawaiian.<ref name=fws>[http://ecos.fws.gov/tess_public/pub/listedPlants.jsp USFWS Species Profile: Listed Plants]</ref>
This Hawaiian lobelioid is a shrub which can exceed three meters in height. The leaves have wavy edges and the flowers are yellow.<ref name=tnc>[http://www.natureserve.org/explorer/servlet/NatureServe?searchName=Cyanea+undulata ''Cyanea truncata''.] The Nature Conservancy.</ref>
The plant was first described in 1909 and then it was not seen again until it was rediscovered in 1991. In 1994 there was a single population containing 28 plants. By 2006 the population was in poor shape, with a single mature plant and a few juveniles remaining.<ref name=five/>
The species has become rare because of habitat degradation by feral pigs, exotic plant species, and damage to plants caused by rats and slugs.<ref name=five/>
==References== {{Reflist}}
==External links== *[http://plants.usda.gov/plant-profile?symbol=CYUN5 USDA Plants Profile]
{{Taxonbar|from=Q5197424}}
undulata Category:Endemic flora of Hawaii Category:Biota of Kauai Category:Plants described in 1909
{{Campanulaceae-stub}}