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How did roses get their thorns?But to botanists, there is no rose with thorns: The spiky outgrowths of a rose stem are called "prickles," and are biologically distinct from the stiff, woody thorns of other plants. Prickles are ...
3 Tell them to sort the plants into those with prickles and thorns, and those without. They should carefully take the non-prickly plants out of their pots and plant them into their bowl.
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