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Visitors look at the titan arum flower, the largest unbranched inflorescence flowering plant in the world, on April 23, 2011 in Basel, Switzerland. The flower, which smells of rotting flesh and is also known as a Corpse Flower, is attracting thousands of curious visitors to the Basel University's Botanical Garden. Originating from Sumatra's tropical rain forest and its humid climate, the flower rarely blossoms even in the wild. There has been only 134 recorded bloom from artificial cultivation and it is the first to blossom in Switzerland in 75 years.