Science Performance Task : The Coral Tree


Coral Tree

(also known as Erythina variegata/Cry-baby Tree)

This tree is known to be indigenous in tropical Asian countries such as Taiwan, southern China, Malaysia, Southeast Asian countries like the Philippines, India, and even in tropical African countries. Thus this tree can only be grown in tropical countries. As the tree is suited in tropical countries, it is resistant or can tolerate drought even during the hot summer season, thus not needing the need of water during winter or in tropical countries, dry season. For it to grow properly, it need 1250mm of rain and a climate of 20 degrees to 32 degrees Celsius. Also it is salt tolerant and thus the reason it is often used in tropical landscapes or countries. This also has the typical transport system of trees with parts such as roots for absorption of water, minerals and sunlight, a long stem or branch for the transport of water and minerals in the plant through the xylem and phloem also there are leaves within the branches for photosynthesis to happen. There are many uses for this plant, this plant has been tested as a fiber for paper and it can make paper with great length, high flexibility and is very slender through its pulp. This has many medicinal uses, such as in the Philippines, its roots and leaves are used to alleviate fever. The bark is also used to treat liver problems in China, the bark can also be used to relieve asthma and coughs. Crushed seeds are also used to treat cancer and snake bites in certain conditions. In propagating the plant, it can be propagated through wood cuttings, for proper, fast and early growth, it needs to be cut 2-3m long and 5-8m in diameter. Seed is also possible, it germinates in 8-10 days and can reach to 30-50cm in 8-10 weeks. However, the seeds are poisonous if ingested and the spines can cause damage to clothes and skin.



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