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Oahu cyanea

Scientific Name: Cyanea hardyi

Family: Campanulaceae

Category: Dicot

Growth: Tree, Shrub

Duration: Perennial

Other Names:

       

Cyanea: An Overview

Cyanea is a genus of flowering plants belonging to the family Campanulaceae (bellflower family). Several species within this genus are rare and, in some cases, extinct in the wild.

Considerations for Pets

  • Several species like Cyanea horrida are noted to have "prickly" characteristics.

Considerations for Children

  • Several species like Cyanea horrida are noted to have "prickly" characteristics.

Scientific Classification

  • Genus: Cyanea
  • Family: Campanulaceae (Bellflower Family)
  • Subfamily: Lobelioideae

Common Names and Species

  • Prickly Cyanea: Cyanea horrida
  • Splitleaf Cyanea: Cyanea grimesiana
  • Sharktail Cyanea: Cyanea pinnatifida
  • Oahu Rollandia: Cyanea humboldtiana
  • Oahu Cyanea: Multiple species including Cyanea calycina and Cyanea hardyi
  • Haha: Cyanea humboldtiana, Cyanea lanceolata ssp. calycina
  • Spleenwort Cyanea: Cyanea aspleniifolia

Synonyms

  • Cyanea lanceolata ssp. calycina (Cham.) Lammers, Givnish & Sytsma (Synonym for Oahu Cyanea/Haha)

Distribution and Habitat

  • Primarily native to the Hawaiian Islands, specifically Oahu, Molokai, Lanai, and western Maui.
  • Many species are endemic to Oahu, meaning they are found nowhere else in the world.
  • Some species occupy lowland wet habitats.

Quirky Facts

  • Some Cyanea species display thorn-like prickles, suggested to be adaptations to extinct avian species.
  • The incidence of prickles increases from Oahu eastward towards younger islands.

Morphological Characteristics

  • Some species, like Cyanea horrida, are characterized by their prickly nature.
  • Heterophylly (having different types of leaves on the same plant) is observed in some species.

Conservation Status

  • Many Cyanea species are rare and endangered.
  • Some species, like Cyanea superba, are extinct in the wild.
  • Conservation efforts include outplanting programs and habitat protection.

Further Information

  • Discover Life offers pages about the biology, natural history, ecology, identification, and distribution of several Cyanea species.
  • Plants Database provides information on Cyanea humboldtiana (Oahu Rollandia).
  • USFWS Refuges information available for Cyanea humboldtiana.