双花草属（学名：Dichanthium）是禾本科下的一个属。该属共有10种，分布于东半球热带和亚热带地区。

Dichanthium, known commonly as bluestem, is a genus of African, Asian, and Australian plants in the grass family some of which have become naturalized in the Americas and on various oceanic islands.

several species now regarded as better suited to other genera: Andropogon Bothriochloa Capillipedium Euclasta Pseudodichanthium