Bluegrass
Scientific classification
Kingdom: Plantae Division: Magnoliophyta Class: Liliopsida Order: Poales Family: Poaceae Genus: Poa
Species
Poa pratensis - Kentucky bluegrass Full List of Poa species

Bluegrass refers to a genus of grasses, some of which look bluish when in flower. The term often refers to a particular species, Kentucky bluegrass, Poa pratensis, that is commonly grown in central Kentucky and in lawns throughout the eastern United States.