Koa: Beautiful, plentiful, and widely useful Hawaiian wood
2023年6月26日 · Koa (Acacia koa) is a legume tree native to Hawaii. It is found on all the big islands and grows from near sea-level to the tops of the mountains, although it prefers the moist sites between...
Koa is the largest native Hawaiian tree. It typically attains heights of 15-25 m (50-80 ft) with a canopy spread of 6-12 m (20-40 ft). Found between 100-2300 m (330-7500 ft). The form of trees ranges from an upright single trunk to low and sprawling with multiple trunks.
Forest for the Trees: Planting Your Own Koa Tree on Hawaii ...
2014年9月30日 · Forest for the Trees: Planting Your Own Koa Tree on Hawaii Island. Hawaiian Legacy Hardwoods on the Big Island is working to restore the native koa forests of Mauna Kea. Baby koa trees await planting at Hawaiian Legacy Hardwoods' farm on the northeast slopes of Mauna Loa. Photo: David Croxford.
Acacia koa - Hawaii’s most valued native tree - Winrock ...
Acacia koa is a large, evergreen broadleaf tree and the only Acacia native-and endemic-to Hawaii. Trees occurring in dense, wet native forest stands typically reach heights of 25 m and stem diameters (DBH) of 150cm, while retaining a straight, narrow form.
The History of Hawaiian Koa Wood: A True Story – Martin ...
Koa Wood is legendary in Hawaii. Not only is this amazing wood native to Hawaii but it is known for the deep rich colors and varied grain pattern. Koa has honored heritage in Hawaii and is highly revered and sacred.
Making Koa Sustainable - Hawaii Business Magazine
2019年10月14日 · Koa is important for the environmental health of Hawai‘i: Its beautiful spreading canopy catches rain and mist, protecting watersheds and aquifers and sustaining the health of other native forest plants, endangered native birds and the Hawaiian hoary bat.
Koai'a - Center for Plant Conservation
This rare tree has sickle-shaped leaves that are actually phyllodes, or flat, expanded petioles that take the place leaf blades & perform the same functions. The flowers are formed in heads with cream-colored corollas, long, curled stamens (more than twice the length of the corolla) and pubescent ovaries.
Acacia Koa Leaves and Phyllodes: Gas Exchange, Morphological ...
Acacia koa Gray has two leaf forms: (1) the horizontal, bipinnately compound "true leaves," and (2) the vertical phyllodes, flattened petioles, that are parallel to overhead radiation. Leaves are morphologically and anatomically distinct from phyllodes.
Assessing stable isotopes in koa trees may aid in ...
2022年3月21日 · Stable isotopes in trees can be used to help determine overall tree health, nutrient levels, and optimal locations for trees to thrive. Forest Service scientists measured isotopes in koa leaves to identify the best sites for reforestation efforts on the island of Hawai’i.
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Koa is an important component of montane Hawaiian rain forests. It is a nitrogen-fixing species. In dense, pole-size stands, nitrogen-rich koa foliage can account for 50 to 75 percent of the leaf-litter biomass produced annually (68).