Rafflesia arnoldii. Rafflesia arnoldii is a member of the genus Rafflesia, noted for producing the largest individual flower on earth. There are some plants with larger flowering organs, the Titan Arum and Talipot palm, but these are technically clusters of many flowers. It occurs only in the rainforests of Sumatra and Borneo in the Indonesia Archipelago. (Photo: discovery 163.com)
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