Cyanea longiflora
species of plant
Cyanea longiflora (formerly Rollandia longiflora) is a rare species of flowering plant in the bellflower family known by the common name ridge rollandia. It is endemic to Oahu where there are only three remaining occurrences in the northern Waianae Mountains for a total of under 300 individuals. It is a federally listed endangered species. Like other Cyanea it is known as haha in Hawaiian.
This Hawaiian lobelioid is a shrub appearing palm-like in form and reaching 3 meters in maximum height. The inflorescence produces magenta flowers. The fruit is a berry which is purple to red when small and ripens to orange.
The US Fish and Wildlife Service stated in 2009 that a recent count revealed a total of 76 mature plants, plus 84 immature plants and 28 seedlings. The plant appears to be limited to the northern Waianae Mountains today and no longer survives in the Koʻolau Range, where a few populations had been known.
Threats to this species include its small numbers, destruction and degradation of its habitat by feral pigs, feral goats, exotic plant species, military exercises, and vandalism.
“Cyanea longiflora” enters the record as species of plant. Crown Archives preserves that source wording while asking what Cyanea, longiflora and species can confirm, complicate or overturn.
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Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Sep 30, 2025. The linked authority identifier is Q5197411. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2009.
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This entry incorporates text from “Cyanea longiflora” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.