razor grass
noun
mass noun
1- W. Indian a tall sedge or grass with leaf blades that have sharp cutting edges〈西印度〉珍珠茅。
1.1
- Genera Scleria (family Cyperaceae) and Paspalum (family Gramineae): several species.珍珠茅属（莎草科）及雀稗属（禾本科）：数种。