NSYSU

Aquatic Plant

可可椰子

Scientific name:

Cocos nucifera

Chinese common name: 

椰瓢、可可椰子

Family: 

Palmae

Morphology

Root:

The coconut palm has a fibrous root system with no taproot, spreading extensively through the soil. 

Stem: 

Upright and slightly curved, tall and cylindrical with a swollen base. It is single-stalked, unbranch, and has a rough surface, reaching a height of 15 to 25 meters.

Leaf: 

Pinnate compound leaves cluster at the top of the stem, with leaflets that are linear to lanceolate in shape.

Flower: 

The flowers are pale green, with many male flowers at the upper end of the inflorescence and a few female flowers at the lower end, forming a spike-like inflorescence.

Fruit and Seed:

The nut is large, conical-oval in shape, with a slightly three-ridged, somewhat triangular apex,matures one year after flowering.

Aquatic Adaptations

Buoyant Seeds: 

The coconuts are buoyant and can float on water, allowing them to disperse over long distances by ocean currents. This enables the species to colonize new coastal areas.

Root System:

The extensive and fibrous root system of the coconut palm helps anchor the plant in sandy soils commonly found in coastal regions. This root system also aids in the absorption of water and nutrients from a larger area.

Water Conservation:

Coconut palms have adapted to conserve water. Their leaves are tough and fibrous, reducing water loss through transpiration. Additionally, the waxy cuticle on the leaves minimizes water loss.

Distribution

Native distribution:

Its place of origin is unknown; some say it is from the Pacific Islands, while others claim it is from South America. 

Current  distribution:

It is widely cultivated in tropical regions.

Ecology

Habitat:

The habitat of the coconut palm includes tropical coastal areas where it adapts well to high-salinity environments, sandy soils that provide good drainage and support root growth, islands and coastlines in the Pacific and Indian Oceans, and tropical lowlands, including plains and wetlands, often near water sources.

Pollination:

Pollination in coconut palms is typically achieved through a combination of wind and insects. The pollen of the coconut palm is dispersed by the wind, transferring from male to female flowers. Additionally, the flowers of the coconut palm attract insects, particularly bees, which assist in the transfer of pollen to the appropriate locations, completing the pollination process.

Dispersal:

Coconut palms spread primarily through ocean dispersal, where mature coconuts can float and be carried by ocean currents to distant islands or coastlines. Human intervention also plays a significant role as people collect mature coconuts for planting in new areas or commercial cultivation. Additionally, birds and animals may consume coconut flesh and disperse seeds to other locations, aiding in the spread of coconut palms across different regions.

Applications and Interesting things

Applications:

Besides the commonly seen freshly opened coconut water, the trunk of the coconut palm can be utilized for furniture and construction materials, while its leaves can be crafted into brooms. Coconut shells are valuable too, serving as material for utensils and decorations. The flesh of the fruit can be processed into products like coconut oil and coconut milk.

Interesting things:

Unique flowering method: The inflorescence of the coconut palm is distinctive, with both male and female flowers on the same inflorescence, but they mature at different times. This phenomenon is known as dichogamy.


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