狼尾草（学名：Pennisetum alopecuroides）是一种禾本科植物。这种植物广泛分布于中国南北各省区；亚洲温带和澳洲、大洋洲也有。

Pennisetum alopecuroides (Chinese pennisetum, Chinese fountaingrass, dwarf fountain grass, foxtail fountain grass, swamp foxtail grass) is a species of perennial grass native to Asia and Australia. Culms are erect, and 60–100 cm long; leaf-blades are erect or drooping; flat, or conduplicate, or involute; and from 10–45 cm long by 3–6 mm wide.