bluegrass
noun. Any of various grasses of the genus Poa, having bluish spikelets, including species such as Kentucky bluegrass that are used for pastures and lawns and others that are considered weeds.source
noun. Any of various grasses of the genus Poa, having bluish spikelets, including species such as Kentucky bluegrass that are used for pastures and lawns and others that are considered weeds.source