桂圆是无患子科植物龙眼Ｅｕｐｈｏｒｉａｌｏｎｇａｎ（Ｌｏｕｒ．）Ｓｔｅｕｄ的干果，是我国特产的一种著名果品，也是一味重要的中药材。笔者发现，近年来在市场上出现了一种混淆品，有时批量很大。据了解其产地在越南、老挝境内。熟悉它的果品商人称为“越南桂圆”。... Longan is a dried fruit of the longan Euphorialongan (Lour.) Steud, a long-living plant of the Sanguinaceae family. It is a famous fruit of China’s specialties and an important Chinese herbal medicine. The author found that in the recent years there has been a kind of confusion in the market, and sometimes the batch volume is large. It is understood that its origin is in Vietnam and Laos. The fruit merchant who is familiar with it is called the “Vietnamese longan.” ...