Look up blackgrass in Wiktionary, the free dictionary.

Blackgrass or black-grass or black grass may refer to:

Plants

• Black-grass, British common name for Alopecurus myosuroides, a damaging weed in wheat crops
• Black-grass rush or blackgrass, American common name for Juncus gerardii, a salt marsh plant used for facing dykes
• Black mondo grass, a cultivar of Ophiopogon planiscapus

Other uses

• Blackgrass (album), an album by Earl Lee Grace