Annual Bluegrass: Poa annua (Synonyms: Poa annua var. aquatica, Poa annua var. reptans) -
Bulbous Bluegrass, Bulbous Blue Grass: Poa bulbosa (Synonyms: Poa bulbosa ssp. bulbosa, Poa bulbosa ssp. vivipara) -
Canada Bluegrass, Flat-stem Bluegrass, Flat-stem Blue Grass: Poa compressa -
Cusick's Bluegrass: Poa cusickii ssp. purpurascens (Synonyms: Poa cusickii var. purpurascens, Poa epilis var. purpurascens) -
Howell's Bluegrass: Poa howellii (Synonyms: Poa bolanderi ssp. howellii, Poa bolanderi var. howellii) -
Weak Bluegrass: Poa infirma -
Loose-flower Bluegrass, Loose-flowered Bluegrass: Poa laxiflora -
Leiberg's Bluegrass, Leiberg's Blue Grass: Poa leibergii (Synonym: Poa vaseyochloa) -
Withered Bluegrass, Withered Blue Grass: Poa marcida (Synonym: Poa saltuensis var. marcida) -
Multnomah Bluegrass: Poa xmultnomae (Synonyms: Poa gracillima, Poa gracillima var. multnomae) -
Wood Bluegrass, Woodland Bluegrass: Poa nemoralis -
Hooker's Blue Grass, Veiny Bluegrass, Wheeler's Bluegrass: Poa nervosa (Synonyms: Poa nervosa var. nervosa, Poa vaseyana) -
Fowl Bluegrass, Fowl Blue Grass: Poa palustris (Synonyms: Poa crocata, Poa eyerdamii, Poa glauca var. crocata, Poa triflora) -
Kentucky Bluegrass, Kentucky Blue Grass, Typical Kentucky Bluegrass: Poa pratensis ssp. pratensis (Synonyms: Poa pratensis ssp. latifolia, Poa pratensis var. domestica, Poa pratensis var. iantha) -
Alkali Bluegrass, Big Bluegrass, Nevada Bluegrass: Poa secunda ssp. juncifolia (Synonyms: Poa ampla, Poa brachyglossa, Poa confusa, Poa juncifolia, Poa juncifolia ssp. porteri, Poa juncifolia var. ampla, Poa nevadensis, Poa nevadensis var. juncifolia) -
Bib Bluegrass, Canby's Bluegrass, Curly Blue Grass, One-sided Bluegrass, Pacific Bluegrass, Pine Bluegrass, Sandberg Bluegrass, Sandberg's Bluegrass: Poa secunda ssp. secunda (Synonyms: Poa buckleyana, Poa buckleyana var. sandbergii, Poa canbyi, Poa gracillima, Poa gracillima var. gracillima, Poa incurva, Poa laevigata, Poa orcuttiana, Poa sandbergii, Poa scabrella, Poa secunda var. elongata, Poa secunda var. incurva, Poa secunda var. stenophylla, Poa stenantha var. sandbergii) -
Narrow-flower Blue Grass, Northern Bluegrass: Poa stenantha var. stenantha -
Rough Bluegrass, Roughstalk Bluegrass, Rough-stalk Blue Grass: Poa trivialis (Synonym: Poa trivialis ssp. trivialis) -
Wheeler's Bluegrass, Wheeler's Blue Grass: Poa wheeleri (Synonyms: Poa curta, Poa nervosa var. wheeleri) -