三穗草属（学名：Polytrias）是禾本科下的一个属，为低矮、匍匐的草本植物。该属仅有一种，分布于亚洲大陆的南部向东南延及诸岛屿。

Polytrias is a genus of Asian, African, and Pacific Island plants in the grass family, commonly called Java grass Batiki bluegrass, Indian murainagrass, or toto grass. The only known species is Polytrias indica, native to West Africa (from Senegal to Cameroon), Seychelles, the Indian Subcontinent, southern China, Southeast Asia, New Guinea, Fiji, and Micronesia. It is also cultivated as a lawn grass in other tropical regions, and naturalized in scattered locations in tropical North and South America.