Crimped Rollandia / Center For Plant Conservation
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Plant Profile

Crimped Rollandia (Cyanea crispa)

Full view of maroon trumpet-flowers growing from leaf-axils. Photo Credit: Elizabeth Huppman
  • Global Rank: G1 - Critically Imperiled
  • Legal Status: Federally Endangered
  • Family: Campanulaceae
  • State: HI
  • Nature Serve ID: 154073
  • Lifeform: Shrub, Subshrub
  • Date Inducted in National Collection: 02/09/1992
Description:

Cyanea crispa is only known from O`ahu's Ko`olau Mountain Range in diverse habitats ranging from steep, open mesic forests to gentle slopes, to moist gullies of closed wet forests. Cyanea crispa is a beautiful unbranched shrub with leaves that cluster at the ends of succulent stems. It has fuzzy flowers, which cluster in groups of 3 to 8 on a stalk. They are pale magenta in color with darker purple stripes on the petals (Wagner et al. 1999).

Where is Crimped Rollandia (Cyanea crispa) located in the wild?

Habitat:

Cyanea crispa is found in habitats ranging from steep, open mesic forests to gentle slopes or moist gullies of closed wet forests at elevation between 600 and 2,400 ft (Wagner, et. al 1999; USFWS 1996).

Distribution:

This species is known only in the Ko`olau Mountains on the island of O`ahu, from Hidden Valley, Palolo Valley, Kapakahi Gulch, Pia Valley and Upper Aina Haina. Currently, there are only 5 populations remaining consisting of 30-50 individuals. Three of these populations have just one single mature flowering plant (USFWS 1998).

States & Provinces:

Crimped Rollandia can be found in Hawaii

Which CPC Partners conserve Crimped Rollandia (Cyanea crispa)?

  • Harold L. Lyon Arboretum

    Sponsored
    Sponsors Add
    Donor Acknowledgment - In the Works
    Conservation Actions
    Assigned 06/09/17
    • 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
      • Orthodox Seed Banking

    Seed banking

    • 09/09/2020
      • Propagation Research

    Propagation

    Nature Serve Biotics
    • 05/02/2017

    Endemic to the Koolau Mountains of Oahu. Fewer than 100 plants are currently known. The species is endangered by feral pigs and alien plants.

    Nellie Sugii
    • 01/01/2010

    Pigs Rats Alien plant species Invertebrates Land erosion (USFWS 1998, 1996)

    Nellie Sugii
    • 01/01/2010

    1 site (O`ahu) 5 populations 30-50 individuals (USFWS 2001, 1998)

    Nellie Sugii
    • 01/01/2010

    Propagation (Harold L. Lyon Arboretum, National Tropical Botanical Garden) Seed banking (Harold L. Lyon Arboretum) (USFWS 1998, 1996)

    Nellie Sugii
    • 01/01/2010

    Pig control in Pia Valley (Division of Forestry and Wildlife) (USFWS 1998, 1996)

    Nellie Sugii
    • 01/01/2010

    Monitoring Enclosure construction Alien plant control Rat control Pig control (USFWS 1998, 1996)

    Nellie Sugii
    • 01/01/2010

    Seed banking Study plant's biological and physiological systems Optimization of propagation protocols Genetic study (USFWS 1998, 1996)

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    Nomenclature
    Taxon Cyanea crispa
    Authority (Gaudich.) Lammers, Givnish & Sytsma
    Family Campanulaceae
    CPC Number 15823
    ITIS 507713
    USDA CYCR9
    Duration Perennial
    Common Names Crimped Rollandia | Haha | Koolau Range Rollandia
    Associated Scientific Names Lobelia crispa | Rollandia crispa | Rollandia crispa var. muricata | Cyanea crispa
    Distribution This species is known only in the Ko`olau Mountains on the island of O`ahu, from Hidden Valley, Palolo Valley, Kapakahi Gulch, Pia Valley and Upper Aina Haina. Currently, there are only 5 populations remaining consisting of 30-50 individuals. Three of these populations have just one single mature flowering plant (USFWS 1998).
    State Rank
    State State Rank
    Hawaii S1
    Ecological Relationships

    Photos

    Full view of maroon trumpet-flowers growing from leaf-axils. Photo Credit: Elizabeth Huppman

    Photo Credit: Nathan Yuen © 2015

    Photo Credit: Nathan Yuen © 2015

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