Tall perennial grass that spreads by creeping rhizomes and is grown for fodder,naturalized in southern United States where it is a serious pest on cultivated land.

• 高大的多年生草本植物其延伸靠爬行功能的根状茎，栽培用于饲料，植入美国南部，在农田中成为一种严重的恶性杂草。