The term needlegrass may refer to any of several genera of grasses, including:

Aristida (three-awns)

Wiregrass may refer to: Pineland three-awn grass, Aristida stricta. Several other species of Aristida, especially A. junciformis and A. purpurea longiseta. Indian goosegrass, Eleusine indica. Smutgrass, Sporobolus indicus. Common knotweed, Polygonum...

Speargrass summary and related information.