Lanceleaf Cyanea / Center For Plant Conservation
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Plant Profile

Lanceleaf Cyanea (Cyanea lanceolata ssp. lanceolata)

Fruiting wild plant at Poamoho, Oahu, Northern Koolau. Photo Credit: Timothy Kroessig
  • Global Rank: G1 - Critically Imperiled
  • Legal Status: Federally Endangered
  • Family: Campanulaceae
  • State: HI
  • Nature Serve ID: 141212
  • Lifeform: Shrub
  • Date Inducted in National Collection:

Cyanea lanceolata subspecies lanceolata is a small woody shrub found only on the island of O`ahu in the Ko`olau Mountain Range. Currently, there are less than 300 plants left in the wild (USFWS 2001). The leaves of this species can become quite large and range from 6 inches to 2 ft in length. The inflorescences are usually comprised of 4 to 16 flowers, ranging in color from pale to dark magenta, often with lighter or darker longitudinal stripes (Wagner et al. 1999).

Where is Lanceleaf Cyanea (Cyanea lanceolata ssp. lanceolata) located in the wild?


Mesic valleys and wet forest, 300 to 915 meters elevation (Wagner et al. 1999). It was once a relatively common understory shrub in mesic and wet forests, but has become increasingly harder to find.


This species is found in the Ko`olau Mountain Range of O`ahu (Wagner et. al 1999).

States & Provinces:

Lanceleaf Cyanea can be found in Hawaii

Which CPC Partners conserve Lanceleaf Cyanea (Cyanea lanceolata ssp. lanceolata)?

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

  • 09/09/2020
  • Propagation Research

Greenhouse and micropropagation

Nature Serve Biotics
  • 05/02/2017

Endemic to the island of Oahu, state of Hawaii. The remaining plants number fewer than 123. Feral, non-native pigs and invasive, non-native plants are serious threats. Also, non-native rats are known to represent a threat to Cyanea species in general.

Nellie Sugii
  • 01/01/2010

Feral pigs Weeds Possibly rats Possibly invertebrates Humans (USFWS 2001)

Nellie Sugii
  • 01/01/2010

1 site (O`ahu) <20 populations <300 plants Widespread in small populations but declining. (USFWS 2001)

Nellie Sugii
  • 01/01/2010

Greenhouse and micropropagation (Harold L. Lyon Arboretum) (Nellie Sugii, Pers. Comm. 2001).

Nellie Sugii
  • 01/01/2010


Nellie Sugii
  • 01/01/2010

Invertebrate control Ungulate control Weed control Stewardship Monitoring and surveying Enclosures

Nellie Sugii
  • 01/01/2010

Propagation Seed banking Genetic studies Biological and physiological studies


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Taxon Cyanea lanceolata ssp. lanceolata
Authority Gaudich.) Lammers, Givnish & Sytsma
Family Campanulaceae
CPC Number 15835
ITIS 507717
Duration Perennial
Common Names Haha | Lanceolate-leaved rollandia | Lanceleaf cyanea
Associated Scientific Names Cyanea lanceolata | Cyanea lanceolata ssp. lanceolata | Cyanea coronata | Rollandia ambigua | Rollandia lanceolata | Rollandia lanceolata ssp. lanceolata | Rollandia lanceolata var. glaberrima | Rollandia lanceolata var. kipapaensis | Rollandia lanceolata var. rockii | Rollandia lanceolata var. viridiflora | Delissea ambigua | Delissea coronata | Delissea delessertiana | Delissea lanceolata | Lobelia ambigua | Rollandia delessertiana | Rollandia grandifolia | Rollandia lanceolata var. grandifolia
Distribution This species is found in the Ko`olau Mountain Range of O`ahu (Wagner et. al 1999).
State Rank
State State Rank
Hawaii S1
Ecological Relationships


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