| Colubrina oppositifolia | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rhamnaceae |
| Genus: | Colubrina |
| Species: | C. oppositifolia |
| Binomial name | |
| Colubrina oppositifolia | |
Colubrina oppositifolia, known as kauila in Hawaiian, is a rare species of flowering tree in the family Rhamnaceae endemic to Hawaii.
This tree reaches a height of 5–13 m (16–43 ft). [3] 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. [4]
It can be found in Hawaiian 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 (on the 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 ).
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). [5]
This tree has become very 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, herbivory by feral pigs and goats, rats, and the black twig borer (Xylosandrus compactus), an invasive insect. The hard wood made it valuable to people, who overharvested it. [1] This is a federally listed endangered species of the United States.
Alphitonia is a genus of arborescent flowering plants comprising about 20 species, constituting part of the buckthorn family (Rhamnaceae). They occur in tropical regions of Southeast Asia, Oceania and Polynesia. These are large trees or shrubs. In Australia, they are often called "ash trees" or "sarsaparilla trees". This is rather misleading however; among the flowering plants, Alphitonia is not closely related to the true ash trees, and barely at all to the monocot sarsaparilla vines (Smilax).
The Hawaiian tropical rainforests are a tropical moist broadleaf forest ecoregion in the Hawaiian Islands. They cover an area of 6,700 km2 (2,600 sq mi) in the windward lowlands and montane regions of the islands. Coastal mesic forests are found at elevations from sea level to 300 m (980 ft). Mixed mesic forests occur at elevations of 750 to 1,250 m, while wet forests are found from 1,250 to 1,700 m. Moist bogs and shrublands exist on montane plateaus and depressions. For the 28 million years of existence of the Hawaiian Islands, they have been isolated from the rest of the world by vast stretches of the Pacific Ocean, and this isolation has resulted in the evolution of an incredible diversity of endemic species, including fungi, mosses, snails, birds, and other wildlife. In the lush, moist forests high in the mountains, trees are draped with vines, orchids, ferns, and mosses. This ecoregion includes one of the world's wettest places, the slopes of Mount Waiʻaleʻale, which average 373 in (9,500 mm) of rainfall per year.
Hawaiian lava sledding is a traditional sport of the Native Hawaiians. Similar to wave surfing, heʻe hōlua involves the use of a narrow wooden sled. The sled is used standing up, lying down, or kneeling, to ride down man-made or naturally occurring courses of rock, often reaching speeds of 50 mph (80 km/h) or greater. In the past, Hawaiian lava sledding was considered both a sport and a religious ritual for honoring the gods.
Colubrina is a genus of about 30 species of flowering plants in the family Rhamnaceae, native to warm temperate to tropical regions of Africa, the Americas, southern Asia, northern Australia, and the Indian Ocean islands.
Metrosideros polymorpha, the ʻōhiʻa lehua, is a species of flowering evergreen tree in the myrtle family, Myrtaceae, that is endemic to the six largest islands of Hawaiʻi. It is a member of the diverse Metrosideros genus, which are widespread over the southwest Pacific. It is the state tree of Hawai‘i.
Acacia koaia, known as koaiʻa or koaiʻe in Hawaiian, is a species of acacia that is endemic to Hawaii. It is closely related to koa, and is sometimes considered to be the same species.
Kauila refers to two species of trees in the buckthorn family, Rhamnaceae, that are endemic to Hawaiʻi: Alphitonia ponderosa and Colubrina oppositifolia. Their wood was prized for being extremely hard, and is so dense that it sinks in water. Both occur in dry to mesic forest and are now rare; C. oppositifolia is listed as Endangered. Also see Metrosideros polymorpha
Mezoneuron kauaiense is a rare shrub or small tree in the genus Mezoneuron, that is endemic to Hawaii. Common names include uhiuhi, kāwaʻu (Maui), and kea (Maui). It is threatened by invasive species, particularly feral ungulates.
Alphitonia ponderosa is a species of flowering tree in the family Rhamnaceae, that is endemic to the Hawaiian Islands. It is locally known as kauila, as is the related Colubrina oppositifolia.
Flueggea neowawraea, the mēhamehame, is a species of flowering tree in the family Phyllanthaceae, that is endemic to Hawaii. It can be found in dry, coastal mesic, and mixed mesic forests at elevations of 250 to 1,000 m. Associated plants include kukui, hame, ʻahakea, alaheʻe, olopua, hao, and aʻiaʻi. Mēhamehame was one of the largest trees in Hawaiʻi, reaching a height of 30 m (98 ft) and trunk diameter of 2 m (6.6 ft). Native Hawaiians used the extremely hard wood of this tree to make weaponry.
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.
Melicope knudsenii, commonly known as Olokele Valley melicope or Knudsen's melicope, is a species of flowering plant in the family Rutaceae, that is endemic to Hawaii. It inhabits montane mesic forests dominated by Acacia koa, Metrosideros polymorpha, and Dicranopteris linearis on Kauaʻi and East Maui (Auwahi). Associated plants include Syzygium sandwicensis, Cheirodendron trigynum, Myrsine lessertiana, Ilex anomala, Alphitonia ponderosa, Zanthoxylum dipetalum, Kadua terminalis, Pleomele aurea, Bobea spp., Tetraplasandra waimeae, Xylosma hawaiensis, Eurya sandwicensis, Psychotria mariniana, Melicope anisata, Melicope barbigera, Planchonella sandwicensis, Dodonaea viscosa, and Dianella sandwicensis. It is threatened by habitat loss. Like other Hawaiian Melicope, this species is known as alani. This is a federally listed endangered species of the United States.
Melicope pallida, the pale melicope, is a species of tree in the family Rutaceae. It is endemic to the Hawaiian Islands. It is threatened by habitat loss. It is a federally listed endangered species of the United States. Like other Hawaiian Melicope, this species is known as alani.
Dracaena konaensis, synonym Pleomele hawaiiensis, the Hawaiʻi hala pepe, is a rare species of flowering plant that is endemic to the island of Hawaiʻi in the state of Hawaii.
Osteomeles anthyllidifolia, commonly called ʻŪlei, eluehe, uʻulei, Hawaiian rose, or Hawaiian hawthorn, is a species of flowering shrub in the rose family, Rosaceae, that is indigenous to Hawaiʻi, the Cook Islands, Tonga, Pitcairn Island, and Rapa Iti, Taiwan and the Ryukyu islands of Japan.
Santalum freycinetianum, the forest sandalwood, Freycinet sandalwood, or ʻIliahi, is a species of flowering tree in the European mistletoe family, Santalaceae, that is endemic to the Hawaiian Islands. Its binomial name commemorates Henri Louis Claude de Saulces de Freycinet, a 19th-century French explorer. ʻIliahi inhabits dry, coastal mesic, mixed mesic, and wet forests on Oʻahu, Kauaʻi, Lānaʻi, Maui, and Molokaʻi at elevations of 250–950 m (820–3,120 ft). It grows in areas that receive 500–3,800 mm (20–150 in) of annual rainfall. Like other members of its genus, ʻiliahi is a root hemi-parasite, deriving some of its nutrients from the host plant; common hosts include koa, koaiʻa, and ʻaʻaliʻi.
Diospyros sandwicensis is a species of flowering tree in the ebony family, Ebenaceae, that is endemic to Hawaii. It belongs to the same genus as both persimmons and ebony. Its common name, lama, also means enlightenment in Hawaiian. Lama is a small to medium-sized tree, with a height of 6–12 m (20–39 ft) and a trunk diameter of 0.3 m (0.98 ft). It can be found in dry, coastal mesic, mixed mesic, and wet forests at elevations of 5–1,220 m (16–4,003 ft) on all major islands. Lama and olopua are dominant species in lowland dry forests on the islands of Maui, Molokaʻi, Kahoʻolawe, and Lānaʻi.
Santalum ellipticum, commonly known as ʻIliahialoʻe (Hawaiian) or coastal sandalwood, is a species of flowering plant in the mistletoe family, Santalaceae, that is endemic to the Hawaiian Islands. It is a sprawling shrub to small tree, typically reaching a height of 1–5 m (3.3–16.4 ft) and a canopy spread of 1–3 m (3.3–9.8 ft), but is extremely variable in size and shape. Like other members of the genus, S. ellipticum is a hemi-parasite, deriving some of its nutrients from the host plant by attaching to its roots.
Euphorbia halemanui is a rare species of flowering plant in the euphorb family known by the common name Kauai sandmat. It is endemic to Kauaʻi, Hawaii, where there are no more than 400 plants remaining. There are four populations at last count. It is a federally listed endangered species.
Xylosandrus compactus is a species of ambrosia beetle. Common names for this beetle include black twig borer, black coffee borer, black coffee twig borer and tea stem borer. The adult beetle is dark brown or black and inconspicuous; it bores into a twig of a host plant and lays its eggs, and the larvae create further tunnels through the plant tissues. These beetles are agricultural pests that damage the shoots of such crops as coffee, tea, cocoa and avocado.
Media related to Colubrina oppositifolia at Wikimedia Commons
Data related to Colubrina oppositifolia at Wikispecies
