sour grass
noun
mass noun
1- grass which is coarse, unpalatable, or of very low nutritional value早叶草酸模。
1.1
- Species in several genera of the family Gramineae, in particular Elionurus (in South Africa), and Andropogon and Valota (in the Caribbean).禾本科数属植物, 尤指伊莲鲁茹斯属（南非）、须芒草属与瓦洛塔属（加勒比地区）。