Colonial Bent: Agrostis capillaris (Synonyms: Agrostis sylvatica, Agrostis tenuis, Agrostis tenuis var. aristata, Agrostis tenuis var. hispida, Agrostis tenuis var. pumila) -
Spike Bentgrass, Spiked Bent: Agrostis exarata (Synonyms: Agrostis aenea, Agrostis alaskana, Agrostis ampla, Agrostis asperifolia, Agrostis exarata ssp. exarata, Agrostis exarata ssp. minor, Agrostis exarata var. exarata, Agrostis exarata var. minor, Agrostis exarata var. monolepis, Agrostis exarata var. monolepsis , Agrostis exarata var. pacifica, Agrostis exarata var. purpurascens, Agrostis longiligula, Agrostis longiligula var. australis, Agrostis melaleuca, Agrostis microphylla var. major) -
Colonial Bentgrass, Idaho Bent, Idaho Bentgrass, Idaho Redtop: Agrostis idahoensis (Synonyms: Agrostis bakeri, Agrostis borealis var. rectaAgrostis filicumis, Agrostis idahoensis var. bakeri, Agrostis idahoensis var. idahoensis) -
Small-leaf Bent: Agrostis microphylla (Synnonyms: Agrostis inflata, Agrostis microphylla var. intermedia) -
Oregon Bent, Oregon Bentgrass: Agrostis oregonensis -
Seashore Bent: Agrostis pallens (Synonyms: Agrostis diegoensis, Agrostis lepida, Agrostis pallens var. vaseyi) -
Rough Bent, Rough Bentgrass, Ticklegrass: Agrostis scabra (Synonyms: Agrostis geminata, Agrostis hyemalis var. geminata, Agrostis hyemalis var. scabra, Agrostis hyemalis var. tenuis, Agrostis scabra ssp. septentrionalis, Agrostis scabra var. geminata, Agrostis scabra var. septentrionalis) -
Alpine Bent, Mountain Bentgrass, Variant Bentgrass: Agrostis variabilis (Synonym: Agrostis rossiae) -
Alpine Bent, Alpine Bentgrass, Mountain Bent: Podagrostis humilis (Synonym: Agrostis humilis) -
Thurber's Bent, Thurber's Bentgrass, Thurber's Redtop: Podagrostis thurberiana (Synonym: Agrostis thurberiana) -