Gardenia brighamii

Gardenia brighamii, commonly known as nānū, naʻu, or forest gardenia, is a species of flowering plant in the coffee family, Rubiaceae, that is endemic to Hawaii.[3]

Gardenia brighamii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Rubiaceae
Genus: Gardenia
Species:
G. brighamii
Binomial name
Gardenia brighamii

Description

Gardenia brighamii is a small tree, reaching a height of 5 m (16 ft).[3] The glossy, dark green leaves[4] are ovate, 2.2–10.5 cm (0.87–4.13 in) long and 1.5–5.5 cm (0.59–2.17 in) wide. The petals of the solitary, white flowers are fused at the base to form a tube 15–20 mm (0.59–0.79 in) in length and have six lobes.

  • Fruits
    Fruits
  • Flowers
    Flowers
  • Leaves
    Leaves
  • Bark
    Bark
  • Plant
    Plant

Habitat and range

Forest gardenia inhabits tropical dry forests at elevations of 350–520 m (1,150–1,710 ft). It previously could be found on all main islands, but today populations only exist on Maui, Molokaʻi, Oʻahu, and Lānaʻi, and the Big Island.[3]

Conservation

The total population of G. brighamii is between 15 and 19 trees. There are only two plants in the wild on Oʻahu and one on the Big Island.[5] Major threats to the survival of this species include loss of dry forest habitat and the establishment of invasive species, such as fountain grass (Pennisetum setaceum).[3]

Uses

Native Hawaiians made kua kuku (kapa anvils)[3] and pou (house posts) from the wood of nānū.[5] A yellow kapa dye was derived from the fruit pulp.[6] The white, fragrant flowers are used in lei. Today, it is grown as an ornamental plant on the islands.[5]

References
Wikimedia Commons has media related to Gardenia brighamii.
Wikispecies has information related to Gardenia brighamii.
  1. Bruegmann, M.M.; Caraway, V. (2003). "Gardenia brighamii". IUCN Red List of Threatened Species. 2003: e.T30927A9593228. doi:10.2305/IUCN.UK.2003.RLTS.T30927A9593228.en. Retrieved 17 November 2021.
  2. "Gardenia brighamii". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 2011-01-10.
  3. "Gardenia brighamii (Rubiaceae)". Meet the Plants. National Tropical Botanical Garden. Retrieved 2011-01-10.
  4. "Gardenia brighamii". CPC National Collection Plant Profile. Center for Plant Conservation. 2010-03-04. Archived from the original on 2010-12-15. Retrieved 2011-01-10.
  5. Barboza, Rick (2006-09-08). "Rare plant's fragrance has hint of coconut". Honolulu Star-bulletin. Vol. 11, no. 251.
  6. "nanu, nau". Hawaii Ethnobotany Online Database. Bernice P. Bishop Museum. Archived from the original on 2007-07-02. Retrieved 2011-03-25.
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