Awnless Trisetum, Beardless False Oat, Wolf's Trisetum, Beardless Trisetum: Graphephorum wolfii (Synonym: Trisetum wolfii) -
Tall False Oat, Tall Trisetum: Trisetum canescens (Synonyms: Trisetum cernuum ssp. canescens, Trisetum cernuum var. canescens, Trisetum cernuum var. projectum, Trisetum spicatum var. projectum) -
Nodding Trisetum: Trisetum cernuum -
Downy Oat-grass, Narrow False Oat, Spike Trisetum: Trisetum spicatum (Synonyms: Aira spicata, Trisetum montanum, Trisetum montanum var. shearii, Trisetum sesquiflorum, Trisetum spicatum ssp. alaskanum, Trisetum spicatum ssp. congdonii, Trisetum spicatum ssp. majus, Trisetum spicatum ssp. molle, Trisetum spicatum ssp. montanum, Trisetum spicatum ssp. pilosiglume, Trisetum spicatum var. alaskanum, Trisetum spicatum var. congdoni, Trisetum spicatum var. maidenii, Trisetum spicatum var. majus, Trisetum spicatum var. molle, Trisetum spicatum var. pilosiglume, Trisetum spicatum var. spicatiforme, Trisetum spicatum var. spicatum, Trisetum spicatum var. villosissimum, Trisetum subspicatum, Trisetum triflorum, Trisetum triflorum ssp. molle, Trisetum villosissimum) -