Golden Clover, Greater Hop Clover, Hop Clover, Yellow Clover: Trifolium aureum (Synonym: Trifolium agrarium) -
Bowl Clover, Cup Clover: Trifolium cyathiferum -
Least Hop Clover, Suckling Clover: Trifolium dubium -
Alsike Clover: Trifolium hybridum (Synonyms: Trifolium elegans, Trifolium hybridum ssp. elegans, Trifolium hybridum var. elegans, Trifolium hybridum var. pratense) -
Long-stalked Clover: Trifolium longipes var. longipes (Synonym: Trifolium longipes ssp. longipes) -
Bighead Clover, Big-head Clover, Large-head Clover: Trifolium macrocephalum (Synonyms: Lupinaster macrocephalus, Trifolium macrocephalum var. caeruleomontanum) -
Red Clover: Trifolium pratense (Synonyms: Trifolium pratense var. frigidum, Trifolium pratense var. sativum) -
Dutch Clover, White Clover: Trifolium repens -