Cyanea st.-johnii

Cyanea st.-johnii (formerly Rollandia st.-johnii) is a rare species of flowering plant in the bellflower family known by the common name St. John's rollandia. It is endemic to Oahu, where it is known only from the Koʻolau Mountains.[2] It is a federally listed endangered species of the United States. Like other Cyanea it is known as haha in Hawaiian.[3]

Cyanea st.-johnii

Critically Endangered  (IUCN 3.1)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Campanulaceae
Genus: Cyanea
Species:
C. st.-johnii
Binomial name
Cyanea st.-johnii
(Hosaka) Lammers, Givnish & Sytsma
Synonyms

Rollandia st.-johnii

A 2007 report estimates 70 remaining individuals divided among seven occurrences in the upper elevations of the Koʻolau Mountains. The plant grows on top of ridges, in open, windy habitat within the cloud zone.[4] The occurrences have been separated and isolated by habitat fragmentation.[1]

This Hawaiian lobelioid is a shrub growing 30 to 60 centimeters tall and producing white flowers.[4]

References
  1. Bruegmann, M. M. & V. Caraway. (2003). Cyanea st.-johnii. IUCN Red List of Threatened Species. IUCN 2010. www.iucnredlist.org Archived June 27, 2014, at the Wayback Machine. Retrieved on 28 February 2011.
  2. USFWS. Cyanea st.-johnii Five-year Review. August 2007.
  3. USFWS Species Profile: Listed Plants
  4. Cyanea st.-johnii. The Nature Conservancy.
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