Integrated Taxonomic Information System - Search Results
Results of: Search in every Kingdom for Scientific Name containing 'Trifolium'
 
 Kingdom Animalia
  Amphiblestrum trifolium (S. Wood, 1844) – valid
  Amphiblestrum trifolium guadrata (Hincks, 1880) – valid
  Amphiblestrum trifolium trifolium (S. Wood, 1844) – valid
  Araneus trifolium (Hentz, 1847) – valid – shamrock orbweaver
  Bufo spinulosus trifolium Tschudi, 1845 – invalid
  Bufo trifolium Tschudi, 1845 – invalid
  Megaderma spasma trifolium É. Geoffroy Saint-Hilaire, 1810 – valid
  Megaderma trifolium É. Geoffroy Saint-Hilaire, 1810 – invalid
  Paromalus trifolium Marseul, 1862 – valid
  Puncturella trifolium Dall, 1881 – valid
  Venezillo trifolium (Dollfus, 1890) – valid
 
 Kingdom Plantae
  Acrostichum citrifolium L. – not accepted
  Anetium citrifolium (L.) Splitg. – not accepted – treetrunk fern
  Euphorbiodendron cestrifolium (Kunth) Millsp. – not accepted
  Maianthemum trifolium (L.) Sloboda – accepted – threeleaf false lily of the valley, threeleaf false lily of the vally
  Myrstiphyllum ligustrifolium Northrop – not accepted
  Panicum trifolium Nash – not accepted
  Piper citrifolium Lam. – not accepted
  Polytaenium citrifolium (L.) Schuettp. – accepted
  Silphium asteriscus var. latrifolium Weber & T.R. Fisher – not accepted
  Solanum trifolium Dunal – accepted
  Tetrapteris citrifolium auct. non (Sw.) Pers. – not accepted
  Trifolium L. – accepted – clover, trčfles
  Trifolium affine C. Presl – accepted
  Trifolium africanum Ser. – accepted – African clover
  Trifolium agrarium L. – not accepted
  Trifolium aitonii Rydb. – not accepted
  Trifolium albopurpureum Torr. & A. Gray – accepted – rancheria clover
  Trifolium albopurpureum var. dichotomum (Hook. & Arn.) Isely – not accepted
  Trifolium albopurpureum var. neolagopus (Lojac.) McDermott – not accepted
  Trifolium albopurpureum var. olivaceum (Greene) Isely – not accepted
  Trifolium alexandrinum L. – accepted – Egyptian clover
  Trifolium alpestre L. – accepted – owl-head clover, purple-globe clover
  Trifolium alpinum L. – accepted – alpine clover
  Trifolium amabile Kunth – accepted – Aztec clover
  Trifolium ambiguum M. Bieb. – accepted – Kura clover
  Trifolium amoenum Greene – accepted – showy Indian clover
  Trifolium amphianthum Torr. & A. Gray – not accepted
  Trifolium amplectens Torr. & A. Gray – not accepted
  Trifolium amplectens var. hydrophilum (Greene) Jeps. – not accepted
  Trifolium amplectens var. truncatum (Greene) Jeps. – not accepted
  Trifolium andersonii A. Gray – accepted – fiveleaf clover
  Trifolium andersonii ssp. andersonii A. Gray – accepted – fiveleaf clover, Anderson's clover
  Trifolium andersonii ssp. beatleyae J.M. Gillett – accepted – Beatley's clover, Beatley's five-leaf clover
  Trifolium andersonii ssp. monoense (Greene) J.M. Gillett – accepted – Mono clover
  Trifolium andersonii var. beatleyae (J.M. Gillett) Isely – not accepted
  Trifolium andersonii var. friscanum S.L. Welsh – not accepted
  Trifolium andersonii var. monoense (Greene) Isely – not accepted
  Trifolium andinum Nutt. – accepted – Intermountain clover, Great Divide clover
  Trifolium andinum var. andinum Nutt. – accepted – Intermountain clover
  Trifolium andinum var. podocephalum Barneby – accepted – Intermountain clover, Currant Summit clover
  Trifolium anemophilum Greene – not accepted
  Trifolium angustifolium L. – accepted – narrowleaf crimson clover
  Trifolium apertum Bobrov – accepted – open clover
  Trifolium appendiculatum Lojac. – not accepted
  Trifolium arcuatum Piper – not accepted
  Trifolium argutum Banks & Sol. – accepted – sharp-tooth clover
  Trifolium arizonicum Greene – not accepted
  Trifolium armenium Willd. – not accepted
  Trifolium arvense L. – accepted – rabbitfoot clover, hare's foot clover, oldfield clover, stone clover, hairy clover, rabbit-foot clover
  Trifolium arvense var. perpusillum DC. – not accepted
  Trifolium atrorubens (Greene) House – not accepted
  Trifolium attenuatum Greene – accepted – Rocky Mountain clover
  Trifolium aureum Pollich – accepted – golden clover
  Trifolium baccarinii Chiov. – accepted
  Trifolium badium Schreb. – accepted
  Trifolium balansae Boiss. – not accepted
  Trifolium barbigerum Torr. – accepted – bearded clover
  Trifolium barbigerum var. andrewsii A. Gray – accepted – Andrews' clover
  Trifolium barbigerum var. barbigerum Torr. – accepted – bearded clover
  Trifolium barnebyi (Isely) Dorn & Lichvar – accepted – Barneby's clover
  Trifolium beckwithii W.H. Brewer ex S. Watson – accepted – Beckwith's clover
  Trifolium bejariense Moric. – accepted – Bejar clover
  Trifolium berytheum Boiss. & Blanche – accepted – Beirut clover
  Trifolium bicephalum Elmer – not accepted
  Trifolium bifidum A. Gray – accepted – notchleaf clover
  Trifolium bifidum var. decipiens Greene – not accepted
  Trifolium biflorum L. – not accepted
  Trifolium billardierei Spreng. – accepted – Labillardiere's clover
  Trifolium bocconei Savi – accepted – Boccone's clover
  Trifolium boissieri Guss. ex Soy.-Will. & Godr. – accepted – Boissier's clover
  Trifolium bolanderi A. Gray – accepted – parasol clover
  Trifolium brachycalycinum (Katzn. & Morley) Katzn. – not accepted
  Trifolium bracteolatum Rydb. – not accepted
  Trifolium brandegeei S. Watson – accepted – Brandegee's clover
  Trifolium breweri S. Watson – accepted – forest clover
  Trifolium buckwestiorum Isely – accepted – Santa Cruz clover
  Trifolium burchellianum Ser. – accepted – Burchell's clover
  Trifolium burchellianum var. johnstonii (Oliv.) J.B. Gillett – accepted
  Trifolium calcaricum J.L. Collins & Wieboldt – accepted – running glade clover
  Trifolium campestre Schreb. – accepted – field clover, large hop clover, lesser hop clover, big hop clover, low hop clover
  Trifolium campestre var. minus (W.D.J. Koch) Kozuharov – not accepted
  Trifolium canescens Willd. – accepted – graying clover
  Trifolium carolinianum Michx. – accepted – Carolina clover
  Trifolium catalinae S. Watson – not accepted
  Trifolium caurinum Piper – not accepted
  Trifolium cernuum Brot. – accepted – nodding clover, drooping clover
  Trifolium cheranganiense J.B. Gillett – accepted – Cherangani clover
  Trifolium cherleri L. – accepted
  Trifolium chilense Hook. & Arn. – accepted – Chilean clover
  Trifolium ciliolatum Benth. – accepted – foothill clover
  Trifolium clypeatum L. – accepted – shield clover
  Trifolium columbianum Greene – not accepted
  Trifolium columbianum var. argillorum Jeps. – not accepted
  Trifolium columbianum var. olivaceum (Greene) Jeps. – not accepted
  Trifolium columbinum Greene – not accepted
  Trifolium columbinum var. argillorum Jeps. – not accepted
  Trifolium compactum Post – not accepted
  Trifolium covillei House – not accepted
  Trifolium cryptopodium Steud. ex A. Rich. – accepted
  Trifolium curvisepalum Tackh. – not accepted
  Trifolium cyathiferum Lindl. – accepted – cup clover
  Trifolium dalmaticum Vis. – accepted – Dalmatian clover
  Trifolium dasyphyllum Torr. & A. Gray – accepted – alpine clover, Uinta clover, whiproot clover
  Trifolium dasyphyllum ssp. anemophilum (Greene) J.M. Gillett – accepted – alpine clover
  Trifolium dasyphyllum ssp. dasyphyllum Torr. & A. Gray – accepted – alpine clover
  Trifolium dasyphyllum ssp. uintense (Rydb.) J.M. Gillett – accepted – Uinta clover
  Trifolium dasyphyllum var. anemophilum (Greene) J.S. Martin ex Isely – not accepted
  Trifolium dasyphyllum var. stenolobum (Rydb.) McDermott – not accepted
  Trifolium dasyphyllum var. uintense (Rydb.) J.S. Martin ex Isely – not accepted
  Trifolium dasyphyllum var. uintense (Rydb.) S.L. Welsh – not accepted
  Trifolium dasyurum C. Presl – accepted
  Trifolium dedeckerae J.M. Gillett – accepted – Dedecker's clover, Dedecker clover
  Trifolium depauperatum Desv. – accepted – cowbag clover
  Trifolium depauperatum var. amplectens (Torr. & A. Gray) S. Watson – accepted – balloon sack clover
  Trifolium depauperatum var. depauperatum Desv. – accepted – cowbag clover
  Trifolium depauperatum var. diversifolium (Nutt.) McDermott – accepted – balloon sack clover
  Trifolium depauperatum var. hydrophilum (Greene) J.S. Martin ex Isely – not accepted
  Trifolium depauperatum var. laciniatum (Greene) Jeps. – not accepted
  Trifolium depauperatum var. stenophyllum (Nutt.) McDermott – accepted – balloon sack clover
  Trifolium depauperatum var. truncatum (Greene) McDermott ex Isely – not accepted
  Trifolium dichotomum Hook. & Arn. – accepted – branched Indian clover
  Trifolium dichotomum var. turbinatum Jeps. – not accepted
  Trifolium dichroanthum Boiss. – accepted
  Trifolium diffusum Ehrh. – accepted – diffuse clover
  Trifolium douglasii House – accepted – Douglas' clover
  Trifolium dubium Sibth. – accepted – suckling clover, hop clover, smallhop clover
  Trifolium echinatum M. Bieb. – accepted – prickly clover
  Trifolium echinatum var. carmeli (Boiss.) Gibelli & Belli – not accepted
  Trifolium echinatum var. echinatum M. Bieb. – not accepted – prickly clover
  Trifolium elegans Savi – not accepted
  Trifolium elmeri Greene – not accepted
  Trifolium eriocephalum Nutt. – accepted – woollyhead clover
  Trifolium eriocephalum ssp. arcuatum (Piper) J.M. Gillett – accepted – woollyhead clover
  Trifolium eriocephalum ssp. cascadense J.M. Gillett – accepted – Cascade clover
  Trifolium eriocephalum ssp. cusickii (Piper) J.M. Gillett – accepted – Cusick's clover
  Trifolium eriocephalum ssp. eriocephalum Nutt. – accepted – woollyhead clover
  Trifolium eriocephalum ssp. martinii J.M. Gillett – accepted – Martin's clover
  Trifolium eriocephalum ssp. villiferum (House) J.M. Gillett – accepted – fuzzyleaf clover
  Trifolium eriocephalum var. butleri Jeps. – not accepted
  Trifolium eriocephalum var. cusickii (Piper) J.S. Martin – not accepted
  Trifolium eriocephalum var. harneyense (Howell) McDermott – not accepted
  Trifolium eriocephalum var. piperi J.S. Martin – not accepted
  Trifolium eriocephalum var. villiferum (House) J.S. Martin – not accepted
  Trifolium eriosphaerum Boiss. – accepted – woolly round-head clover
  Trifolium fendleri Greene – not accepted
  Trifolium fimbriatum Lindl. – not accepted
  Trifolium flavulum Greene – not accepted
  Trifolium fragiferum L. – accepted – strawberry clover
  Trifolium fragiferum ssp. bonannii (C. Presl) Soják – not accepted
  Trifolium friscanum (S.L. Welsh) S.L. Welsh – accepted – Frisco clover
  Trifolium fruticans L. – not accepted
  Trifolium fucatum Lindl. – accepted – bull clover
  Trifolium fucatum var. gambelii (Nutt.) Jeps. – not accepted
  Trifolium fucatum var. virescens (Greene) Jeps. – not accepted
  Trifolium gambelii Nutt. – not accepted
  Trifolium gemellum Pourr. ex Willd. – accepted – Spanish clover
  Trifolium geminiflorum Greene – not accepted
  Trifolium glanduliferum Boiss. – accepted – glandular clover
  Trifolium globosum L. – accepted – round-head clover
  Trifolium glomeratum L. – accepted – clustered clover
  Trifolium gracilentum Torr. & A. Gray – accepted – pinpoint clover, pin-point clover
  Trifolium gracilentum var. gracilentum Torr. & A. Gray – accepted – pinpoint clover
  Trifolium gracilentum var. inconspicuum Fernald – not accepted
  Trifolium gracilentum var. palmeri (S. Watson) McDermott – accepted – Palmer's clover
  Trifolium grandiflorum Schreb. – accepted – large-flower hop clover
  Trifolium grayi Lojac. – not accepted
  Trifolium gymnocarpon Nutt. – accepted – hollyleaf clover
  Trifolium gymnocarpon ssp. gymnocarpon Nutt. – accepted – hollyleaf clover
  Trifolium gymnocarpon ssp. plummerae (S. Watson) J.M. Gillett – accepted – Plummer's clover, Plummer clover
  Trifolium gymnocarpon var. lemmonii (S. Watson) McDermott – not accepted
  Trifolium gymnocarpon var. plummerae (S. Watson) J.S. Martin – not accepted
  Trifolium gymnocarpon var. subcaulescens (A. Gray) A. Nelson – not accepted
  Trifolium hansenii Greene – not accepted
  Trifolium haussknechtii Boiss. – accepted – Haussknecht's clover
  Trifolium haydenii Porter – accepted – Hayden's clover
  Trifolium haydenii var. barnebyi Isely – not accepted – Barneby's clover
  Trifolium haydenii var. haydenii Porter – not accepted – Hayden's clover
  Trifolium heldreichianum (Gibelli & Belli) Hausskn. – accepted – Heldreich's clover
  Trifolium helleri P.B. Kenn. – not accepted
  Trifolium heterodon Torr. & A. Gray – not accepted
  Trifolium hirtum All. – accepted – rose clover
  Trifolium howellii S. Watson – accepted – canyon clover
  Trifolium howellii var. latifolium (Hook.) McDermott – not accepted
  Trifolium hybridum L. – accepted – alsike clover
  Trifolium hybridum ssp. elegans (Savi) Asch. & Graebn. – not accepted
  Trifolium hybridum var. elegans (Savi) Boiss. – not accepted
  Trifolium hybridum var. pratense Rabenh. – not accepted
  Trifolium inaequale Rydb. – not accepted
  Trifolium incarnatum L. – accepted – crimson clover
  Trifolium incarnatum var. elatius Gibelli & Belli – not accepted
  Trifolium involucratum var. arizonicum (Greene) McDermott – not accepted
  Trifolium involucratum var. fendleri (Greene) McDermott – not accepted
  Trifolium involucratum var. fimbriatum (Lindl.) McDermott – not accepted
  Trifolium involucratum var. heterodon (Torr. & A. Gray) S. Watson – not accepted
  Trifolium involucratum var. kennedianum McDermott – not accepted
  Trifolium involuncratum var. arizonicum (Greene) McDermott – not accepted
  Trifolium isodon Murb. – not accepted
  Trifolium israeliticum D. Zohary & Katzn. – accepted – Israel clover
  Trifolium isthmocarpum Brot. – accepted
  Trifolium jokerstii M. Vincent & Rand. Morgan – accepted – Jim's clover
  Trifolium kennedianum (McDermott) A. Nelson & J.F. Macbr. – not accepted
  Trifolium kingii S. Watson – accepted – King's clover
  Trifolium kingii ssp. dedeckerae (J.M. Gillett) D. Heller – not accepted
  Trifolium kingii ssp. kingii S. Watson – accepted – King's clover
  Trifolium kingii ssp. macilentum (Greene) J.M. Gillett – accepted – King's clover, lean clover
  Trifolium kingii ssp. productum (Greene) D. Heller – not accepted
  Trifolium kingii ssp. rollinsii (J.M. Gillett) D. Heller – not accepted
  Trifolium kingii var. brandegeei (S. Watson) McDermott – not accepted
  Trifolium kingii var. macilentum (Greene) Isely – not accepted
  Trifolium kingii var. productum (Greene) Jeps. – not accepted
  Trifolium lacerum Greene – not accepted
  Trifolium lagopus Pourr. ex Willd. – not accepted
  Trifolium lappaceum L. – accepted – burdock clover
  Trifolium latifolium (Hook.) Greene – accepted – twin clover
  Trifolium leibergii A. Nelson & J.F. Macbr. – accepted – Leiberg's clover
  Trifolium lemmonii S. Watson – accepted – Lemmon's clover
  Trifolium leucanthum M. Bieb. – accepted
  Trifolium ligusticum Balb. ex Loisel. – accepted – Ligurian clover
  Trifolium lilacinum Rydb. – not accepted
  Trifolium lividum Rydb. – not accepted
  Trifolium longicaule Wooton & Standl. – not accepted
  Trifolium longipes Nutt. – accepted – longstalk clover, long-stalk clover
  Trifolium longipes ssp. atrorubens (Greene) J.M. Gillett – accepted – longstalk clover
  Trifolium longipes ssp. caurinum (Piper) J.M. Gillett – accepted – longstalk clover
  Trifolium longipes ssp. elmeri (Greene) J.M. Gillett – accepted – Elmer's clover
  Trifolium longipes ssp. hansenii (Greene) J.M. Gillett – accepted – Hansen's clover
  Trifolium longipes ssp. longipes Nutt. – accepted – longstalk clover
  Trifolium longipes ssp. multipedunculatum (P.B. Kenn.) J.M. Gillett – accepted – longstalk clover
  Trifolium longipes ssp. oreganum (Howell) J.M. Gillett – accepted – Oregon clover
  Trifolium longipes ssp. pedunculatum (Rydb.) J.M. Gillett – accepted – longstalk clover
  Trifolium longipes ssp. pygmaeum (A. Gray) J.M. Gillett – accepted – pygmy clover, long-stalk clover
  Trifolium longipes ssp. reflexum (A. Nelson) J.M. Gillett – accepted – droopflower clover
  Trifolium longipes ssp. shastense (House) J.M. Gillett – accepted – longstalk clover
  Trifolium longipes var. atrorubens (Greene) Jeps. – not accepted
  Trifolium longipes var. brachypus S. Watson – not accepted
  Trifolium longipes var. elmeri (Greene) McDermott – not accepted
  Trifolium longipes var. hansenii (Greene) Jeps. – not accepted
  Trifolium longipes var. latifolium Hook. – not accepted
  Trifolium longipes var. multiovulatum (L.F. Hend.) C.L. Hitchc. – not accepted
  Trifolium longipes var. multipedunculatum (P.B. Kenn.) J.S. Martin ex Isely – not accepted
  Trifolium longipes var. neurophyllum (Greene) J.S. Martin ex Isely – not accepted
  Trifolium longipes var. nevadense Jeps. – not accepted
  Trifolium longipes var. oreganum (Howell) Isely – not accepted
  Trifolium longipes var. pedunculatum (Rydb.) C.L. Hitchc. – not accepted
  Trifolium longipes var. pedunculatum (Rydb.) Isely – not accepted
  Trifolium longipes var. pygmaeum A. Gray – not accepted
  Trifolium longipes var. reflexum A. Nelson – not accepted
  Trifolium longipes var. rusbyi (Greene) H.D. Harr. – not accepted
  Trifolium longipes var. shastense (House) Jeps. – not accepted
  Trifolium lucanicum Gasp. ex Guss. – accepted
  Trifolium lugardii Bullock – accepted – Lugard's clover
  Trifolium lupinaster L. – accepted – lupine clover
  Trifolium macilentum Greene – not accepted
  Trifolium macilentum var. dedeckerae (J.M. Gillett) Barneby – not accepted
  Trifolium macilentum var. rollinsii (J.M. Gillett) Barneby – not accepted
  Trifolium macraei Hook. & Arn. – accepted – Chilean clover
  Trifolium macraei var. albopurpureum (Torr. & A. Gray) Greene – not accepted
  Trifolium macraei var. dichotomum (Hook. & Arn.) W.H. Brewer ex S. Watson – not accepted
  Trifolium macrocephalum (Pursh) Poir. – accepted – largehead clover, bighead clover
  Trifolium macrocephalum var. caeruleomontanum H. St. John – not accepted
  Trifolium maritimum Huds. – not accepted
  Trifolium maritinum Huds. – not accepted
  Trifolium masaiense J.B. Gillett – accepted – Masai clover
  Trifolium medium L. – accepted – zigzag clover
  Trifolium medium var. sarosiense (Hazsl.) Savul. & Rayss – not accepted
  Trifolium meduseum Blanche ex Boiss. – accepted – Medusa clover
  Trifolium megalanthum Steud. – not accepted
  Trifolium melananthum Hook. & Arn. – not accepted
  Trifolium meneghinianum Clementi – not accepted
  Trifolium mercedense P.B. Kenn. – not accepted
  Trifolium michelianum Savi – accepted – bigflower clover
  Trifolium michelianum ssp. balansae (Boiss.) Ponert – accepted – Balansa clover
  Trifolium michelianum var. balansae (Boiss.) Andrz. – not accepted – Balansa clover
  Trifolium micranthum Viv. – accepted – slender hop clover
  Trifolium microcephalum Pursh – accepted – smallhead clover, littlehead clover, small-head clover
  Trifolium microdon Hook. & Arn. – accepted – thimble clover
  Trifolium microdon var. pilosum Eastw. – not accepted
  Trifolium miegeanum Maire – accepted – miege clover
  Trifolium minutissimum D. Heller & Zohary – accepted – dwarf clover, Clemens County clover
  Trifolium monanthum A. Gray – accepted – mountain carpet clover, carpet clover
  Trifolium monanthum ssp. grantianum (A. Heller) J.M. Gillett – accepted – mountain carpet clover
  Trifolium monanthum ssp. monanthum A. Gray – accepted – mountain carpet clover
  Trifolium monanthum ssp. parvum (Kellogg) J.M. Gillett – accepted – mountain carpet clover
  Trifolium monanthum ssp. tenerum (Eastw.) J.M. Gillett – accepted – mountain carpet clover
  Trifolium monanthum var. caulescens Lojac. – not accepted
  Trifolium monanthum var. eastwoodianum J.S. Martin – not accepted
  Trifolium monanthum var. grantianum (A. Heller) Parish – not accepted
  Trifolium monanthum var. parvum (Kellogg) McDermott – not accepted
  Trifolium monanthum var. pusillum (Greene) Jeps. – not accepted
  Trifolium monanthum var. tenerum (Eastw.) Parish – not accepted
  Trifolium monoense Greene – not accepted
  Trifolium montanense Rydb. – not accepted
  Trifolium montanum L. – accepted – mountain clover
  Trifolium mucronatum Willd. ex Spreng. – accepted – cusp clover
  Trifolium mucronatum ssp. lacerum (Greene) J.M. Gillett – accepted – spinytooth clover, cusp clover
  Trifolium mucronatum ssp. mucronatum Willd. ex Spreng. – accepted
  Trifolium mucronatum var. arizonicum (Greene) Isely – not accepted
  Trifolium mucronatum var. mucronatum Willd. ex Spreng. – not accepted
  Trifolium multicaule M.E. Jones – not accepted
  Trifolium multipedunculatum P.B. Kenn. – not accepted
  Trifolium mutabile Port. – accepted
  Trifolium nanum Torr. – accepted – dwarf clover
  Trifolium nemorale Greene – not accepted
  Trifolium neolagopus Lojac. – not accepted
  Trifolium neurophyllum Greene – accepted – White Mountain clover
  Trifolium nigrescens Viv. – accepted – small white clover
  Trifolium nigrescens ssp. petrisavii (Clementi) Holmboe – not accepted
  Trifolium obscurum Savi – accepted
  Trifolium obscurum ssp. aequidentatum (Perez Lara) C. Vicioso – not accepted
  Trifolium obtusiflorum Hook. – accepted – clammy clover
  Trifolium occidentale Coombe – not accepted
  Trifolium ochroleucum Huds. – accepted – sulphur clover
  Trifolium oliganthum Steud. – accepted – fewflower clover
  Trifolium olivaceum Greene – accepted – olive clover
  Trifolium olivaceum var. columbianum (Greene) Jeps. – not accepted
  Trifolium olivaceum var. columbinum (Greene) Jeps. – not accepted
  Trifolium olivaceum var. griseum Jeps. – not accepted
  Trifolium orbiculatum B.P. Kenn. & McDermott – not accepted
  Trifolium oreganum Howell – not accepted
  Trifolium oreganum var. multiovulatum L.F. Hend. – not accepted
  Trifolium oreganum var. rydbergii (Greene) McDermott – not accepted
  Trifolium ornithopodioides L. – accepted – bird clover, bird's-foot-fenugreek
  Trifolium owyheense Gilkey – accepted – Owyhee clover
  Trifolium oxydon Greene ex Rydb. – not accepted
  Trifolium oxyodon Greene ex Rydb. – not accepted
  Trifolium palaestinum Boiss. – accepted – Palestine clover
  Trifolium pallescens Schreb. – accepted
  Trifolium pallidum Waldst. & Kit. – accepted
  Trifolium palmeri S. Watson – not accepted
  Trifolium pannonicum Jacq. – accepted – Hungarian clover
  Trifolium pannonicum ssp. elongatum (Willd.) Zohary – not accepted
  Trifolium parryi A. Gray – accepted – Parry's clover, Parry clover
  Trifolium parryi ssp. montanense (Rydb.) J.M. Gillett – accepted – Parry's clover
  Trifolium parryi ssp. parryi A. Gray – accepted – Parry's clover
  Trifolium parryi ssp. salictorum (Greene ex Rydb.) J.M. Gillett – accepted – Parry's clover
  Trifolium parryi var. montanense (Rydb.) Isely – not accepted
  Trifolium parryi var. montanense (Rydb.) S.L. Welsh – not accepted
  Trifolium parviflorum Ehrh. – not accepted
  Trifolium patens Schreb. – accepted
  Trifolium pauciflorum Nutt. – not accepted
  Trifolium pauciflorum var. parvum Kellogg – not accepted
  Trifolium pedunculatum Rydb. – not accepted
  Trifolium petraeum Greene – not accepted
  Trifolium petrophilum Greene ex A. Heller – not accepted
  Trifolium philistaeum Zohary – accepted – Palestine clover
  Trifolium physodes Steven ex M. Bieb. – accepted
  Trifolium pilulare Boiss. – accepted
  Trifolium pinetorum Greene – accepted – woods clover, pinewoods clover
  Trifolium plummerae S. Watson – not accepted
  Trifolium plumosum Douglas – accepted – plumed clover
  Trifolium plumosum ssp. amplifolium (J.S. Martin) J.M. Gillett – accepted – bigleaf clover
  Trifolium plumosum ssp. plumosum Douglas – accepted – plumed clover
  Trifolium plumosum var. amplifolium J.S. Martin – not accepted
  Trifolium plumosum var. plumosum Douglas – not accepted
  Trifolium polydon Greene – not accepted
  Trifolium polymorphum Poir. – accepted – peanut clover
  Trifolium polyodon Greene – not accepted – Pacific Grove clover
  Trifolium polystachyum Fresen. – accepted
  Trifolium pratense L. – accepted – red clover
  Trifolium pratense var. frigidum auct. non Gaudin – not accepted
  Trifolium pratense var. sativum (Schreb.) Cincovic – not accepted
  Trifolium procumbens L. – not accepted
  Trifolium productum Greene – accepted – Shasta clover
  Trifolium purpureum Loisel. – accepted – purple clover
  Trifolium purseglovei J.B. Gillett – accepted
  Trifolium pusillum Greene – not accepted
  Trifolium pygmaeum (A. Gray) J.M. Gillett – not accepted
  Trifolium reflexum L. – accepted – buffalo clover
  Trifolium reflexum var. glabrum Lojac. – not accepted
  Trifolium reflexum var. virginicum (Small ex Small & Vail) McDermott – not accepted
  Trifolium repens L. – accepted – white clover, Dutch clover, ladino clover, white Dutch clover
  Trifolium repens var. biasolettii (Steud. & Hochst.) Asch. & Graebn. – not accepted
  Trifolium repens var. giganteum Lagr.-Foss. – not accepted – giant clover
  Trifolium repens var. repens L. – not accepted – white clover
  Trifolium resupinatum L. – accepted – reversed clover, Persian clover
  Trifolium resupinatum var. suaveolens (Willd.) Dinsm. – not accepted
  Trifolium retusum L. – accepted – teasel clover
  Trifolium rollinsii J.M. Gillett – accepted – Rollins' clover
  Trifolium rubens L. – accepted
  Trifolium rueppellianum Fresen. – accepted – Rueppell's clover
  Trifolium rusbyi Greene – not accepted
  Trifolium rusbyi ssp. caurinum (Piper) D. Heller & Zohary – not accepted
  Trifolium rusbyi ssp. multipedunculatum (P.B. Kenn.) D. Heller & Zohary – not accepted
  Trifolium rusbyi ssp. neurophyllum (Greene) D. Heller & Zohary – not accepted
  Trifolium rusbyi ssp. oreganum (Howell) D. Heller & Zohary – not accepted
  Trifolium rusbyi ssp. reflexum (A. Nelson) D. Heller & Zohary – not accepted
  Trifolium rusbyi ssp. shastense (House) D. Heller & Zohary – not accepted
  Trifolium rusbyi var. atrorubens Greene – not accepted
  Trifolium rydbergii Greene – not accepted
  Trifolium salictorum Greene ex Rydb. – not accepted
  Trifolium saxicola Small – not accepted
  Trifolium scabrum L. – accepted – rough clover
  Trifolium scariosum A. Nelson – not accepted
  Trifolium scutatum Boiss. – accepted – shield clover
  Trifolium semipilosum Fresen. – accepted – Kenya clover
  Trifolium shastense House – not accepted
  Trifolium simulans House – not accepted
  Trifolium siskiyouense J.M. Gillett – accepted – Siskiyou clover
  Trifolium smyrnaeum Boiss. – not accepted
  Trifolium spadiceum L. – accepted – brown moor clover
  Trifolium speciosum Willd. – not accepted
  Trifolium spinulosum Douglas ex Hook. – not accepted
  Trifolium spumosum L. – accepted – Mediterranean clover
  Trifolium squamosum L. – accepted – sea clover
  Trifolium squarrosum L. – accepted
  Trifolium stellatum L. – accepted – star clover, starry clover
  Trifolium stenolobum Rydb. – not accepted
  Trifolium stenophyllum Nutt. – not accepted
  Trifolium steudneri Schweinf. – accepted – Steudner's clover
  Trifolium stoloniferum Muhl. ex Eaton – accepted – running buffalo clover, creeping clover
  Trifolium striatum L. – accepted – knotted clover
  Trifolium strictum L. – accepted
  Trifolium subcaulescens A. Gray – not accepted
  Trifolium subterraneum L. – accepted – subterranean clover
  Trifolium subterraneum ssp. brachycalycinum Katzn. & Morley – not accepted – subterranean clover
  Trifolium subterraneum var. yanninicum (Katzn. & Morley) Zohary – not accepted – subterranean clover
  Trifolium suffocatum L. – accepted – suffocated clover
  Trifolium supinum Savi – not accepted
  Trifolium sylvaticum Gérard ex Loisel. – accepted
  Trifolium tembense Fresen. – accepted – Tembien clover
  Trifolium tenerum Eastw. – not accepted
  Trifolium thalii Vill. – accepted
  Trifolium thompsonii C.V. Morton – accepted – Thompson's clover
  Trifolium tomentosum L. – accepted – woolly clover
  Trifolium tomentosum var. curvisepalum (Tackh.) J. Thiebaut – not accepted
  Trifolium traskiae P.B. Kenn. – not accepted
  Trifolium trichocalyx A. Heller – accepted – Monterey clover, Coastal dunes milk-vetch
  Trifolium trichocephalum M. Bieb. – accepted
  Trifolium tridentatum Lindl. – not accepted
  Trifolium tridentatum var. aciculare (Nutt.) McDermott – not accepted
  Trifolium tridentatum var. obtusiflorum (Hook.) S. Watson – not accepted
  Trifolium trilobatum Jeps. – not accepted
  Trifolium truncatum (Greene) Greene – not accepted
  Trifolium tumens Steven ex M. Bieb. – accepted
  Trifolium uintense Rydb. – not accepted
  Trifolium uniflorum L. – accepted – oneflower clover
  Trifolium usambarense Taub. – accepted
  Trifolium variegatum Nutt. – accepted – whitetip clover, white-tip clover
  Trifolium variegatum var. major Lojac. – not accepted
  Trifolium variegatum var. melananthum (Hook. & Arn.) Greene – not accepted
  Trifolium variegatum var. pauciflorum (Nutt.) McDermott – not accepted
  Trifolium variegatum var. rostratum (Greene) C.L. Hitchc. – not accepted
  Trifolium variegatum var. trilobatum (Jeps.) McDermott – not accepted
  Trifolium vavilovii Eig – accepted – Vavilov's clover
  Trifolium vernum Phil. – accepted
  Trifolium vesiculosum Savi – accepted – arrowleaf clover
  Trifolium villiferum House – not accepted
  Trifolium virginicum Small ex Small & Vail – accepted – Kates Mountain clover, Kate's-mountain clover
  Trifolium willdenovii Spreng. – accepted – tomcat clover
  Trifolium willdenovii var. fimbriatum (Lindl.) Ewan – not accepted
  Trifolium willdenovii var. kennedianum (McDermott) Ewan – not accepted
  Trifolium willdenovii var. longicaule (Wooton & Standl.) L.D. Benson – not accepted
  Trifolium willdenowii Spreng. – not accepted – tomcat clover
  Trifolium willdenowii var. fimbriatum (Lindl.) Ewan – not accepted
  Trifolium willdenowii var. kennedianum (McDermott) Ewan – not accepted
  Trifolium willdenowii var. longicaule (Wooton & Standl.) L.D. Benson – not accepted
  Trifolium wormskioldii Lehm. – accepted – cows clover, cow clover, Sierra clover
  Trifolium wormskioldii var. arizonicum (Greene) Barneby – not accepted
  Trifolium wormskioldii var. fimbriatum (Lindl.) Jeps. – not accepted
  Trifolium wormskioldii var. kennedianum (McDermott) Jeps. – not accepted
  Trifolium wormskioldii var. longicaule (Wooton & Standl.) L.D. Benson – not accepted
  Trifolium wormskioldii var. siskiyouense (J.M. Gillett) Isely – not accepted
  Trifolium wormskjoldii Lehm. – not accepted
  Trisetum trifolium (Bigelow) Á. Löve & D. Löve – not accepted
   

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