Synonyms for Silver Dollar (same or very similar meaning)
WordNet sense 1 (a dollar made of silver):
cartwheel, cartwheelWordNet sense 2 (southeastern European plant cultivated for its fragrant purplish flowers and round flat papery silver-white seedpods that are used for indoor decoration):
honesty, satinpod, Lunaria annua, money plant, satin flowerFrom the ODE community, based on WordNetadd/edit