pennywort

詳細解釋：

pen.ny.wort

n.（名詞）
Any of several plants having rounded leaves suggestive of pennies, as:
銅錢草（龍膽科小草）：任一種有圓形的葉子且令人想起便士之外形的植物，例如：
A Eurasian plant(Umbilicus rupestris) having thick, peltate leaves and yellowish-green flowers. Also called navelwort
一種長有較厚且呈盾形的葉子和黃綠色花朵的亞歐（龍膽科小草） 植物 也作 navelwort
A North American plant(Obolaria virginica) having fleshy leaves and small white or purplish flowers.
維吉尼亞光錢草：一種長有柔嫩多汁的葉子和白紫色小花的北美（維吉尼亞光葉草） 植物