Cyanea horrida

Cyanea horrida
Imperiled
Imperiled (NatureServe)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Campanulaceae
Genus: Cyanea
Species:
C. horrida
Binomial name
Cyanea horrida
(Rock) O.Deg. & Hosaka
Synonyms
  • Cyanea ferox var. horrida Rock
  • Cyanea lobata var. hamakuae Rock
  • Delissea horrida (Rock) H.St.John
  • Delissea kipahuluensis H.St.John
  • Delissea lobata var. hamakuae (Rock) H.St.John

Cyanea horrida, the prickly cyanea or hāhā nui, is a small, prickly tree from the Campanulaceae family which grows roughly 1–3 m (3.3–9.8 ft) which is endemic to east Maui. It is critically endangered with an unknown amount of specimens currently in existence. C. horrida is pollinated by honeycreeper birds.

Habitat

Cyanea horrida is found in high-altitude rainforests and cliffs, above 1,500 m (4,900 ft) in elevation, in an approximately 13,934 ha (34,430 acres) area along the slopes of Haleakalā, mostly in the east-to-northeast regions.

Description

Cyanea horrida is small, only 1–3 m (3.3–9.8 ft) in height, with "palm-like" fronds for leaves which are pinnately parted or divided, approximately 20-37 centimeters long and 10–19 cm (3.9–7.5 in) wide. The flowers come in inflorescences of 5-8, with purple flowers, yielding yellow berries. Most parts of the plant, including leaves and trunk, are covered in small protrusions.

References

  1. 1 2 Bruegmann, M.M.; Caraway, V. (2003). "Cyanea horrida". IUCN Red List of Threatened Species. 2003 e.T33582A9788344. doi:10.2305/IUCN.UK.2003.RLTS.T33582A9788344.en.
  2. ↑ NatureServe (1 May 2026). "Cyanea horrida Prickly Cyanea". NatureServe Explorer. Arlington, Virginia. Retrieved 16 May 2026.
  3. 1 2 "Cyanea horrida (Rock) O.Deg. & Hosaka". Global Biodiversity Information Facility. Retrieved 16 May 2026.
  4. 1 2 "Prickly Cyanea (Cyanea horrida) | U.S. Fish & Wildlife Service". USFWS. Retrieved 2026-05-17.
  5. 1 2 Species Report Cyanea horrida (holokea) (PDF) (Report). USFWS. February 2023.