All Species in Trifolium
- Alpine Clover (Trifolium dasyphyllum)
- Aztec Clover (Trifolium amabile)
- Barneby's Clover (Trifolium barnebyi)
- Bearded Clover (Trifolium barbigerum)
- Beckwith's Clover (Trifolium beckwithii)
- Bejar Clover (Trifolium bejariense)
- Branched Indian Clover (Trifolium dichotomum)
- Brandegee's Clover (Trifolium brandegeei)
- Buffalo Clover (Trifolium reflexum)
- Bull Clover (Trifolium fucatum)
- Canyon Clover (Trifolium howellii)
- Carolina Clover (Trifolium carolinianum)
- Chilean Clover (Trifolium macraei)
- Clammy Clover (Trifolium obtusiflorum)
- Cowbag Clover (Trifolium depauperatum)
- Cows Clover (Trifolium wormskioldii)
- Cup Clover (Trifolium cyathiferum)
- Cusp Clover (Trifolium mucronatum)
- Dedecker's Clover (Trifolium dedeckerae)
- Douglas' Clover (Trifolium douglasii)
- Dwarf Clover (Trifolium nanum)
- Fewflower Clover (Trifolium oliganthum)
- Fiveleaf Clover (Trifolium andersonii)
- Foothill Clover (Trifolium ciliolatum)
- Forest Clover (Trifolium breweri)
- Frisco Clover (Trifolium friscanum)
- Hayden's Clover (Trifolium haydenii)
- Hollyleaf Clover (Trifolium gymnocarpon)
- Intermountain Clover (Trifolium andinum)
- Jim's Clover (Trifolium jokerstii)
- Kates Mountain Clover (Trifolium virginicum)
- King's Clover (Trifolium kingii)
- Largehead Clover (Trifolium macrocephalum)
- Leiberg'S Clover (Trifolium leibergii)
- Lemmon's Clover (Trifolium lemmonii)
- Longstalk Clover (Trifolium longipes)
- Monterey Clover (Trifolium trichocalyx)
- Mountain Carpet Clover (Trifolium monanthum)
- Notchleaf Clover (Trifolium bifidum)
- Olive Clover (Trifolium columbinum)
- Owyhee Clover (Trifolium owyheense)
- Parasol Clover (Trifolium bolanderi)
- Parry's Clover (Trifolium parryi)
- Pinpoint Clover (Trifolium gracilentum)
- Piorkowski's Clover (Trifolium piorkowskii)
- Plumed Clover (Trifolium plumosum)
- Rancheria Clover (Trifolium albopurpureum)
- Rocky Mountain Clover (Trifolium attenuatum)
- Rollins' Clover (Trifolium rollinsii)
- Running Buffalo Clover (Trifolium stoloniferum)
- Running Glade Clover (Trifolium calcaricum)
- Santa Cruz Clover (Trifolium buckwestiorum)
- Shasta Clover (Trifolium productum)
- Showy Indian Clover (Trifolium amoenum)
- Siskiyou Clover (Trifolium siskiyouense)
- Smallhead Clover (Trifolium microcephalum)
- Thimble Clover (Trifolium microdon)
- Thompson's Clover (Trifolium thompsonii)
- Tomcat Clover (Trifolium willdenovii)
- Twin Clover (Trifolium latifolium)
- White Mountain Clover (Trifolium longipes subsp. neurophyllum)
- Whitetip Clover (Trifolium variegatum)
- Woods Clover (Trifolium pinetorum)
- Woollyhead Clover (Trifolium eriocephalum)