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The biggest flower in Central America, Aristolochia grandiflora produces large solitary flowers from cordiate leaf axils. Leaves can be up to 25 cm wide. Flowers are heart shaped: 10–20 cm wide and have tails that are up to 60 cm long. The flower is green/white with purple/brown veins. The center of the flower is darker colored, which attracts pollinators along with a distinctive odor to its reproductive elements.