Any grass of the genus Poa having bluish-green stems, as the Kentucky bluegrass.

【植】蓝草；六月禾；莓系属的草。

Traditional country music, esp. of the southern U.S. Compare country-and western.

【美】蓝草音乐(一种在美国南部流行的传统乡土音乐，多用未经扩音的弦乐器演奏)。