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Poinsettias are not poisonous: Scientific research from The Ohio State University has proved the poinsettia to be non-toxic to both humans and pets. All parts of the plants were tested, including the leaves and sap.
The oldest roses:Colorado fossils of the rose which were alive 40 million years ago are the oldest evidence of roses. Blue color from flowers: To make blue dye the Native Americans on the West Coast used the Delphinium flower.
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