水蔗草属（学名：Apluda）是禾本科下的一个属，为多年生、分枝、披散草本植物。该属仅有水蔗草（Apluda mutica）一种，分布于马达加斯加至大洋洲。

Apluda is a genus of plants in the grass family native to Asia and to various islands in the Indian and Pacific Oceans.

The only known species is Apluda mutica, native to Central Asia, China (incl ****** + *****), Japan (incl Ryukyu Islands), Indian Subcontinent, Southeast Asia, New Guinea, Vanuatu, Solomon Islands, New Caledonia, Caroline Islands, Madagascar, Mauritius, Réunion, Socotra, Oman