牛鞭草属（学名：Hemarthria）是禾本科下的一个属，为多年生草本植物。该属共有8种，分布于东半球温带地区。

Hemarthria is a genus of herbaceous plants in the grass family. They occur in the tropical and subtropical Old World, especially in China and Southeast Asia, with some species in Africa, Australia, and southern Europe. They may be known generally as jointgrasses.