From the Super Mario Wiki, the Mario encyclopedia
Nipper Dandelions are obstacles in Yoshi's Island DS. They are dandelion-like flowers that are made up of four Nipper Spores. When blown by strong winds (usually caused by a Windbag), a Nipper Dandelion releases its Nipper Spores into the air. The spores then fall to the ground and turn into Nipper Plants.
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