白茅属（学名：Imperata）是禾本科下的一个属，为多年生、直立、不分枝草本植物。该属共有10种，分布于热带和亚热带地区。

Imperata is a small but widespread genus of tropical and subtropical grasses, commonly known as satintails.

Satintail grass species are perennial rhizomatous herbs with solid, erect stems and silky inflorescences. The best known species is Imperata cylindrica, which is recognized as a devastating noxious weed in many places and cultivated as an ornamental plant in others.