Koa
ExplorarPlantas
Koa
acacia koa
The Koa (Acacia koa) is a magnificent, fast-growing canopy tree endemic to the Hawaiian Islands, representing one of the most culturally and ecologically significant plants in the archipelago. Renowned for its beautiful, highly figured wood which ranges from rich gold to deep chocolate brown, Koa was historically used by Native Hawaiians to build oceanic voyaging canoes, surfboards, and weapons. Today, it remains highly prized by woodworkers globally. As a keystone species of Hawaii's wet and mesic forests, the Koa tree provides crucial habitat for a vast array of endemic birds, insects, and understory plants. It plays an essential role in forest hydrology and nitrogen fixation, nurturing the delicate volcanic soils of its island home.
Hábitat: Found in wet to mesic montane forests across the major Hawaiian islands, typically at elevations between 300 and 2,000 meters.
Aspecto
Koa trees are large, broad-canopied trees that can reach heights up to 30 meters. They are easily recognized by their distinctive crescent-shaped "leaves," which are actually modified leaf stems called phyllodes. True bipinnately compound leaves are present only on young seedlings or shaded lower branches. The bark is light gray, rough, and deeply fissured in older specimens. During the blooming season, the tree produces pale yellow, spherical flower heads resembling tiny powder puffs, which are followed by flat, brown seed pods measuring 7 to 15 centimeters long.
ReinoPlantaeFiloTracheophytaClaseMagnoliopsidaOrdenFabalesFamiliaFabaceaeGéneroAcacia
Categoría
PlantasRareza
Common
Peligro
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Snaps
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Datos interesantes
Adult Koa trees do not have true leaves; instead, they photosynthesize using crescent-shaped, flattened leaf stems called phyllodes.
Koa is the second most common tree in Hawaii's forests, preceded only by the Ohia Lehua.
The word 'Koa' means 'brave, bold, fearless, or warrior' in the Hawaiian language, reflecting the strength and resilience of its wood.
Habilidades especiales
Habilidad
Nitrogen-Fixing Symbiosis
Koa hosts Bradyrhizobium bacteria in its root nodules, converting atmospheric nitrogen into a usable form that enriches poor volcanic soils.
Habilidad
Phyllode Metamorphosis
As it matures, Koa replaces its water-thirsty true leaves with drought-resistant, crescent-shaped phyllodes that reduce water loss.
Habilidad
Wildfire Regeneration
Koa seeds possess a hard, durable coat that can remain dormant in the soil for decades, germinating rapidly after being scarified by forest fires.
Medidas y detalles
- Longitud
- 1500-3000 cm
- Esperanza de vida
- 50-150 años
Dieta y alimentación
As a photoautotrophic plant, Koa generates its own energy through photosynthesis, utilizing sunlight, carbon dioxide, water, and soil nutrients.
Alimentos principales
- Sunlight
- Carbon dioxide
- Water
- Soil minerals
Conexiones ecológicas
mutualism
I'iwi
Drepanis coccinea
Feeds on the nectar of Koa flowers and nests in its canopy.
eaten by
Koa Bug
Coleotichus blackburniae
A native iridescent insect that feeds on the seeds and pods of the Koa tree.
host plant
Akiapolaau
Hemignathus wilsoni
An endemic Hawaiian honeycreeper that uses its specialized beak to forage for insects under the bark of Koa trees.
Rasgos
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También conocido como
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Seguridad
Peligro
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Preguntas frecuentes
¿Cómo identificar a Koa?
La forma más fácil de identificar a Koa es usar la aplicación de identificación de naturaleza Snappit.
¿Cuál es el longitud de Koa?
1500-3000 cm
¿Cuál es el esperanza de vida de Koa?
50-150 años
¿Qué come Koa?
As a photoautotrophic plant, Koa generates its own energy through photosynthesis, utilizing sunlight, carbon dioxide, water, and soil nutrients.
¿Dónde se encuentra normalmente Koa?
Found in wet to mesic montane forests across the major Hawaiian islands, typically at elevations between 300 and 2,000 meters.
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