Common Name
Hawaii's Lady Nightcap

Hawaiian Name

Scientific Name
Bonamia menziesii



Whole Plant




Location On Campus

Bonamia menziesii is located in Kalama garden.


Natural Habitat

  Bonamia's natural habitat is located in tropical and subtropical areas. It is found on steep slopes and level ground. This plant is located on the Wai'anae mountain range on the island of O'ahu.

Cultural Information

This plant is endemic which means that it is only found in Hawaiÿi. It is also endangered. Bonamia is only found on the islands of Kaua'i, O'ahu, Moloka'i, Maui, Lana'i and Hawai'i.

Plant Description


  • Aerial roots
  • Green-brownish color


  • Herbaceous stems
  • Twinning stems
  • Yellow when young
  • Brownish in color when mature


  • Simple leaves
  • Soft and leather in texture
  • 3-9 cm long
  • 1-4 cm wide


  • White to green in color
  • funnel shaped
  • 20-25 cm long
  • 10-15 cm wide


  • Dry Capsules
  • Tan to yellowish color
  • 10-15 mm long
  • 1-10 mm wide


  • 1-2 seeds per capsule
  • Dark brown to black in color surrounded by black pulp
  • 6-8 mm long
  • 4-5 mm wide

Other Interesting Facts:

  • Pigs are destroying the natural habitat of Bonamia
  • Only several hundred left in the state of Hawaiÿi
  • It is endemic and endangered

Web Site Links


Click here to learn more about the parts of Bonamia Menziesii.

 Bonamia Menziesii

Click here to learn about how Bonamia is being protected


Click here to learn more about Bonamia and view pictures.



Center for Plant Conservation. 2001. CPC National Collection Plant Profile. March 10, 2003. < CPCNum=606>

Gustafson R. and Sohmer S.H. Plants and Flowers of Hawaii. Honolulu: University of Hawaii Press, 1987.

Herbst Deral R., Sohmer S.H., Wagner Warren L. Manual of the Flowering Plants of Hawaii. Honolulu: Bishop Museum Press, 1990.

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