Colubrina oppositifolia
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C. oppositifolia
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| Colubrina oppositifolia |
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Colubrina oppositifolia, known as Kauila in Hawaiian, is a species of flowering tree in the buckthorn family, Rhamnaceae, that is endemic to Hawaii. It can be found in dry, coastal mesic, and mixed mesic forests at elevations of 240–920 m (790–3,020 ft) on the islands of Oʻahu (Waiʻanae Range) and Hawaiʻi (slopes of Kohala, Hualālai, and Mauna Loa). There is also one individual remaining on Maui.[1] Associated plants include alaheʻe (Psydrax odorata) and ʻohe kukuluāeʻo (Reynoldsia sandwicensis).
Description
This tree reaches a height of 5–13 m (16–43 ft).[2] The trunk is coated in shredding gray-brown bark and the smaller twigs are reddish. The leaves are oppositely arranged and have pointed oval blades. The yellow-green flowers occur in clusters of 10 to 12. The fruit is a rounded capsule which is explosively dehiscent.[3]
Uses
Native Hawaiians valued the hard wood of C. oppositifolia and that of a related species, Alphitonia ponderosa, both of which were known as kauila. Consequently, the exact usage of C. oppositifolia wood is unknown. It is believed to have been used in pou (house posts), hohoa (round kapa beaters), ʻiʻe kūkū (square kapa beaters), ʻō (harpoons), hiʻa kā ʻupena (fishing net shuttles), ihe paheʻe (javelins), pololū (spears), pāhoa (daggers), lāʻa pālau (clubs), leiomano (shark tooth clubs), ʻōʻō (digging sticks), pieces for ʻume (a wand game), and ʻūkēkē (musical bows).[4]
Conservation
This tree has become rare in the wild. Once a dominant species of the forests it inhabits, it has now been reduced to no more than 300 wild individuals. Threats to the species have included introduced plant species, feral pigs and goats, rats, and the black twig borer (Xylosandrus compactus). The hard wood made it valuable to people, who overharvested it.[1] This is a federally listed endangered species of the United States.
See also
References
- ↑ 1.0 1.1 Bruegmann, M. M. & V. Caraway. (2003). Colubrina oppositifolia. IUCN Red List of Threatened Species. IUCN 2010. www.iucnredlist.org. Retrieved on 14 February 2011.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Colubrina oppositifolia. Hawaiian Native Plant Propagation Database, University of Hawaii, Manoa.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
Media related to Lua error in package.lua at line 80: module 'strict' not found. at Wikimedia Commons 
Data related to Colubrina oppositifolia at Wikispecies
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