More Than Diverse 9,000 Tree Species in Earth Are Yet to be Discovered, Study Finds

An international research effort which attempts to estimate existing trees on Earth reveals that there are still thousands of tree species yet to be discovered. 100 scientists suggest that more than 9,000 new species are undiscovered, 9,200 to be precise. With approximately 73,000 tree species in total on Earth, about 64,000 of these have been documented so far.