鱼腥草,因带有浓烈鱼腥味,故名。此草乃为多年生草本,聚生于水边沼泽潮湿地。茎高不过尺馀,绿色的心形叶,互生,茎下端伏地生白色的根,上端直立。民间有称其为猪鼻拱,说是因放养的猪喜欢用鼻子从泥土中拱出它的嫩根来嚼食。但亦有以为应称猪鼻孔,乃是它初生的嫩叶卷曲成猪的鼻孔 Houttuynia, because of a strong fishy smell, hence the name. This grass is perennial herb, polygamous wetlands in the water marsh. Stems tall, but ruler, green heart-shaped leaves, alternate, the lower end of the stems volvix white roots, the upper erect. The folk have called it a pig’s nose arch, saying that the stocking pig likes to use the nose to chew its tender root from the soil. However, it is also thought that the pig’s nostrils should be called the nostrils of the firstborn leaves curled into pigs