菱。菱科。一年生水生草本。叶两型，水上叶菱形，叶柄上有浮囊；沉浸叶羽状细裂。夏末秋初开花，花单生于叶腋，白或淡红色。花受精后，没人水中，长成果实，即一般所称之菱，亦即广州话的菱角；萼片发育成菱的硬角。类型很多。性喜温暖及充足阳光。春季直插或育苗后移植，秋季采收。果实供食用及制淀粉，鲜嫩者可作水果。

(old slang) (figurative) 1. Knuckle (of a hand) (this refers to an old slang; "食菱角" (of physical punishment) Hit someone's head with the knuckle of a hand)