The Chinese money plant is scientifically known as the Pilea peperomioides. We cannot fault your friend or you for mistaking one for the other as these two plants do look very much alike. However, the best way to know if it's a Peperomia polybotrya is whether it has raindrop-shaped leaves. Pilea peperomioides have round coin-shaped leaves. If your plant has tiny delicate blooms, it's the pilea variety, while tendril-like flowers are what raindrop peperomias produce.