It gives the forest a colorful combination of white , red , yellow , orange , purple and pink leaves . Species of palm tree , ferns , lianas and epiphytes abound in the lowland rainforests of Costa Rica . Epiphytes are plants which live on trees in to get sunlight necessary for their survival . These plant species have the ability to feed off water , dust and nutrients and thus are not considered parasites . In fact these epiphytes enhance the water-gathering ability of the trees where they live...











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