INDEX TO COMMON NAMES

Genera only are listed in this index except where the common species name differs from the common name of its genus and does not include the latter. Scientific names are also shown.

Common NameScientific NamePage
AcaciaAcacia[30]
AdderstongueOphioglossum[28]
Agoseris, wavyleafMicroseris cuspidata[47]
AgrimonyAgrimonia[35]
AlfalfaMedicago[32]
AlkaligrassPuccinellia[25]
AlumrootHeuchera[44]
AlycecloverAlysicarpus[30]
AmaranthAmaranthus[35]
AmmanniaAmmannia[35]
AmorphaAmorpha[30], [55]
AmsoniaAmsonia[35]
AnemoneAnemone[35]
AntelopehornAsclepiodora[37]
ApplePyrus[57]
ArrowheadSagittaria[30]
AshFraxinus[57]
AsparagusAsparagus[29]
AsterAster[37]
AvensGeum[43]
BaccharisBaccharis[56]
BagpodGlottidium[31]
BahiaBahia[37]
BahiagrassPaspalum notatum[24]
BarberryBerberis[56]
BarleyHordeum[22]
BarnyardgrassEchinochloa crusgalli[21]
BasketflowerCentaurea americana[38]
BasswoodTilia[59]
BeachgrassAmmophila[18]
BeakgrainDiarrhena[20]
BeanPhaseolus[33]
BedstrawGalium[43]
BeebalmMonarda[48]
BeetBeta[37]
BeggarticksBidens[37]
BellflowerCampanula[38]
BentgrassAgrostis[18]
BergiaBergia[37]
BerlandieraBerlandiera[37]
BermudagrassCynodon[20]
BerseemTrifolium alexandrinum[34]
BerulaBerula[37]
BetonyStachys[53]
BindweedConvolvulus[40]
BirchBetula[56]
BirdwoodgrassCenchrus setigerus[20]
BittercressCardamine[38]
BittersweetCelastrus[56]
BitterweedHymenoxys odorata[45]
BlackberryRubus[58]
BlackberrylilyBelamcanda[29]
BlackeyedsusanRudbeckia hirta[51]
BlackfootMelampodium[47]
BladderfernCystopteris[28]
BladdernutStaphylea[59]
BladderpodLesquerella[46]
BladderwortUtricularia[54]
BloodrootSanguinaria[52]
BlowoutgrassRedfieldia[25]
Blue-eyedgrassSisyrinchium[30]
BluegrassPoa[24]
BlueheartsBuchnera[38]
BluestemAndropogon; Bothriochloa[18]
BluetsHoustonia[44]
BlueweedEchium vulgare[41]
BoltoniaBoltonia[38]
BonesetEupatorium perfoliatum[42]
BottlebrushgrassHystrix[22]
BouncingbetSaponaria officinalis[52]
BoxelderAcer negundo[55]
BrackenPteridium[28]
BrickelliaBrickellia[38]
BristlegrassSetaria[25]
BroadbeanVicia faba[34]
BromeBromus[19]
BroomCytisus[31], [56]
BroomcornSorghum bicolor var. technicum[25]
BroomrapeOrobanche[49]
BroomsedgeAndropogon virginicus[18]
BroomweedGutierrezia dracunculoides[43]
BrowneyedsusanRudbeckia triloba[51]
BrowntopmilletPanicum ramosum[23]
BuckbrushSymphoricarpos orbiculatus[59]
BuckeyeAesculus[55]
BuckhornPlantago lanceolata[50]
BuckthornRhamnus[58]
BuckwheatFagopyrum[42]
BuffalogourdCucurbita foetidissima[40]
BuffalograssBuchloë[20]
BuffelgrassPennisetum ciliare[24]
BugleweedLycopus[47]
BugseedCorispermum nitidum[40]
BulbostylisBulbostylis[27]
BulrushScirpus[28]
BumeliaBumelia[56]
BunchflowerMelanthium[29]
BundleflowerDesmanthus[31]
BurcloverMedicago[32]
BurcucumberSicyos[52]
BurdockArctium[36]
BurgrassTragus[26]
BurheadEchinodorus[29]
BurnweedErechtites[41]
BurragweedFranseria tomentosa[42]
BurreedSparganium[30]
BurrograssScleropogon[25]
BursageFranseria[42]
ButtercupRanunculus[51]
ButternutJuglans cinerea[57]
ButtonbushCephalanthus[56]
ButtonweedDiodia[41]
CabbageBrassica oleracea[38]
CalceolariaHybanthus[45]
CaltropKallstroemia[45]
CamasCamassia[29]
CamomileAnthemis[36]
CamphorweedHeterotheca[44]
CanarygrassPhalaris[24]
CaneArundinaria[19]
CardinalflowerLobelia cardinalis[47]
Cardinalflower, westernLobelia splendens[47]
CarpetgrassAxonopus[19]
CarpetweedMollugo[48]
CarrotDaucus[41]
CastorbeanRicinus[51]
CatalpaCatalpa[56]
Catchfly, sleepySilene antirrhina[52]
CatchflygrassLeersia lenticularis[22]
CatnipNepeta cataria[48]
CattailTypha[30]
CeanothusCeanothus[56]
CentaureaCentaurea[38]
CentipedegrassEremochloa[21]
CerastiumCerastium[38]
CharlockBrassica kaber[38]
CheatBromus secalinus[20]
CherryPrunus[57]
ChervilChaerophyllum[38]
ChickencornSorghum bicolor var. drummondii[25]
ChickpeaCicer[31]
ChickweedStellaria media[54]
ChicoryCichorium[39]
ChineselanternPhysalis lobata[50]
ChlorisChloris[20]
ChokecherryPrunus virginiana[57]
ChollaOpuntia[48]
ChristmasfernPolystichum acrostichoides[29]
CinquefoilPotentilla[51]
CircaeaCircaea[39]
ClammyweedPolanisia[50]
ClearweedPilea[50]
ClematisClematis[39]
CleomellaCleomella[39]
CliffbrakePellaea[28]
Climbing-buckwheatPolygonum convolvulus[50]
ClimbingmilkweedAmpelamus albidus[35]
CloakfernNotholaena[28]
CloverTrifolium[34]
Cockle, whiteLychnis alba[47]
CockleburXanthium[55]
CockspurEchinochloa[21]
CoffeetreeGymnocladus[32], [57]
CogongrassImperata[22]
CollinsiaCollinsia[39]
ColumbineAquilegia[36]
ComandraComandra[39]
CompassplantSilphium laciniatum[53]
ConeflowerDracopis; Rudbeckia[41], [51]
ConyzaConyza[40]
CopperleafAcalypha[35]
CordgrassSpartina[25]
CoreopsisCoreopsis[40]
Corkwing, mountainCymopterus montanus[40]
CornZea[26]
CorncockleAgrostemma[35]
CornflowerCentaurea cyanus[38]
CornsaladValerianella[54]
CorydalisCorydalis[40]
CottonGossypium[44]
CottontopTrichachne[26]
CottonwoodPopulus[57]
CowlilyNuphar[48]
CowpeaVigna[35]
CrabapplePyrus[57]
CrabgrassDigitaria[20]
CrazyweedOxytropis[33]
CreeperParthenocissus[57]
Cress, hoaryCardaria draba[38]
CristatellaCristatella[40]
CrotalariaCrotalaria[31]
CrotonCroton[40]
CrotonopsisCrotonopsis[40]
CrowfootRanunculus[51]
CrownbeardVerbesina[55]
CrownvetchCoronilla[31]
CryptanthaCryptantha[40]
CudweedGnaphalium[43]
CulversphysicVeronicastrum virginicum[55]
CupgrassEriochloa[21]
CupheaCuphea[40]
CurlymesquiteHilaria belangeri[22]
CurrantRibes[58]
CutgrassLeersia[22]
CyclantheraCyclanthera[40]
CymopterusCymopterus[40]
DaleaDalea[31]
DallisgrassPaspalum dilatatum[24]
DandelionTaraxacum[54]
DanthoniaDanthonia[20]
DarnelLolium temulentum[22]
DaturaDatura[41]
DayflowerCommelina[29]
DeathcamasZygadenus[30]
DeervetchLotus[32]
DevilsclawProboscidea[51]
DewberryRubus[58]
DiantheraJusticia[45]
DiaperiaDiaperia[41]
DiclipteraDicliptera[41]
DitaxisDitaxis[41]
DockRumex[51]
DodderCuscuta[40]
DogbaneApocynum[36]
DogtailCynosurus[20]
DogweedDyssodia[41]
DogwoodCornus[56]
DrabaDraba[41]
DropseedSporobolus[25]
DucksmeatSpirodela[30]
DuckweedLemna[29]
Dutchmans-breechesDicentra cucullaria[41]
DutchmanspipeAristolochia[36]
DwarfdandelionKrigia[45]
EchinaceaEchinacea[41]
EchinocereusEchinocereus[41]
EinkornTriticum monococcum[26]
ElderberrySambucus[59]
ElephantsfootElephantopus[41]
EllisiaEllisia[41]
ElmUlmus[59]
ElodeaElodea[29]
EmmerTriticum dicoccum[26]
EngelmanndaisyEngelmannia[41]
EriogonumEriogonum[42]
EryngoEryngium[42]
ErysimumErysimum[42]
EulophusPerideridia[49]
EuonymusEuonymus[56]
EupatoriumEupatorium[42]
EuphorbiaEuphorbia[42]
EveningprimroseOënothera[48]
EvolvulusEvolvulus[42]
False-alyssumBerteroa[37]
FalsebonesetKuhnia eupatorioides[45]
FalsebuffalograssMunroa[23]
FalsedandelionPyrrhopappus[51]
FalseflaxCamelina[38]
FalsegarlicNothoscordum[29]
FalsegrapeAmpelopsis[55]
FalsenettleBoehmeria[38]
FalsenightshadeChamaesaracha[39]
FalsepennyroyalHedeoma[44]
FalsepimpernelLindernia[46]
FameflowerTalinum[54]
FawnlilyErythronium[29]
Feathergrass, New MexicoStipa neomexicana[26]
FeathertopPennisetum villosum[24]
FenugreekTrigonella foenum-graecum[34]
FescueFestuca[21]
FigwortScrophularia[52]
FilareeErodium cicutarium[42]
FilbertCorylus[56]
FimbristylisFimbristylis[27]
FingergrassDigitaria[20]
FireweedEpilobium angustifolium[41]
FlatsedgeCyperus[27]
FlaveriaFlaveria[42]
FlaxLinum[46]
FleabaneErigeron[41]
FlowerofanhourHibiscus trionum[44]
FluffgrassTridens pulchellus[26]
FluxweedIsanthus[45]
Fogfruit, wedgeleafLippia lanceolata[46]
ForgetmenotMyosotis[48]
FountaingrassPennisetum ruppelii[24]
Four-o’clockMirabilis[48]
FoxtailAlopecurus[18]
FringeorchidHabenaria[29]
FuirenaFuirena[27]
FunnellilyAndrostephium[29]
GaillardiaGaillardia[43]
GalletaHilaria jamesii[22]
Galleta, bigHilaria rigida[22]
GamagrassTripsacum[26]
GarlicAllium[29]
GarlicmustardAlliaria[35]
GauraGaura[43]
GayfeatherLiatris[46]
GentianGentiana[43]
GeraniumGeranium[43]
GerardiaGerardia[43]
GermanderTeucrium[54]
GhostpipeOrobanche uniflora[49]
GianthyssopAgastache[35]
GiantreedArundo[19]
GiliaGilia[43]
GinkgoGinkgo[57]
GlobemallowSphaeralcea[53]
GoatgrassAegilops[18]
GoldasterChrysopsis[39]
GoldenrodSolidago[53]
GoldenweedHaplopappus[44]
GoldstargrassHypoxis hirsuta[29]
GooseberryRibes[58]
GoosefootChenopodium[39]
GoosegrassEleusine[21]
GramaBouteloua[19]
GrapeVitis[59]
GreasewoodSarcobatus[59]
GreenbriarSmilax[30]
GreenthreadThelesperma[54]
GromwellLithospermum[46]
GroundcherryPhysalis[49]
GroundivyGlechoma hederacea[43]
GroundselSenecio[52]
GuineagrassPanicum maximum[23]
GumweedGrindelia[43]
HackberryCeltis[56]
HairgrassAira; Deschampsia[18], [20]
Hairsedge bulbstyleBulbostylis cappillaris[27]
HardinggrassPhalaris tuberosa var. stenoptera[24]
HaresearConringia[40]
HawkweedHieracium[44]
HawthornCrataegus[56]
HazelCorylus[56]
HedgehyssopGratiola[43]
HedgemustardSisymbrium officinale[53]
HeliopsisHeliopsis[44]
HeliotropeHeliotropium[44]
HemicarphaHemicarpha[28]
HempCannabis[38]
HenbitLamium amplexicaule[46]
HibiscusHibiscus[44]
HickoryCarya[56]
HilariaHilaria[22]
HoarhoundMarrubium[47]
HogpeanutAmphicarpa[30]
HollyIlex[57]
HollyfernPolystichum[28]
HoneylocustGleditsia[31], [57]
HoneysuckleLonicera[47], [57]
HopHumulus[45]
HophornbeamOstrya[57]
HoptreePtelea[57]
HornwortCeratophyllum[38]
HorsebeanVicia faba var. equina[34]
HorsegentianTriosteum[54]
HorsenettleSolanum carolinense[53]
HorseradishArmoracia lapathifolia[36]
HorsetailEquisetum[28]
HorseweedConyza canadensis[40]
HoundstongueCynoglossum[40]
HyacinthbeanDolichos[31]
HymenopappusHymenopappus[45]
HymenoxysHymenoxys[45]
HyparrheniaHyparrhenia[22]
IndiangrassSorghastrum[25]
IndianplantainCacalia[38]
IndigoIndigofera[32]
IrisIris[29]
IronplantHaplopappus spinulosus[44]
IronweedVernonia[55]
IsopyrumIsopyrum[45]
JackinthepulpitArisaema[29]
JapanesemilletEchinochloa crusgalli var. frumentacea[21]
JaraguaHyparrhenia rufa[22]
JerusalemartichokeHelianthus tuberosus[44]
JimsonweedDatura stramonium[41]
JobstearsCoix[20]
JoepyeweedEupatorium[42]
JohnnyjumpupViola kitaibeliana var. rafinesquii[55]
JohnsongrassSorghum halepense[25]
JointtailManisuris[22]
JunegrassKoeleria[22]
JuniperJuniperus[57]
KaleBrassica oleracea var. acephala[38]
KidneyvetchAnthyllis[30]
KikuyugrassPennisetum clandestinum[24]
Knapweed, RussianCentaurea repens[38]
KnotgrassPaspalum distichum[24]
KnotweedPolygonum[50]
KochiaKochia[45]
KrameriaKrameria[45]
KudzuPueraria[33]
KuhniaKuhnia[45]
LacegrassEragrostis capillaris[21]
LadiestressesSpiranthes[30]
LadyslipperCypripedium[29]
LambsquartersChenopodium album[39]
LarkspurDelphinium[41]
Lawngrass, JapaneseZoysia japonica[26]
LeadplantAmorpha canescens[30], [55]
LentilLens[32]
LespedezaLespedeza[32], [57]
LettuceLactuca[46]
LicoriceGlycyrrhiza[32]
LilacSyringa[59]
LilyLilium[29]
LindenTilia[59]
LionsheartPhysostegia[50]
LipfernCheilanthes[28]
LippiaLippia[46]
LobeliaLobelia[47]
LocoAstragalus[30]
LocustRobinia[34], [58]
LomatiumLomatium[47]
LongtomPaspalum lividum[24]
LoosestrifeLysimachia[47]
LophotocarpusLophotocarpus[29]
LopseedPhryma[49]
LotusNelumbo[48]
LovegrassEragrostis[21]
LupineLupinus[32]
LythrumLythrum[47]
MacuillamiaBacopa[37]
MaidenhairfernAdiantum[28]
MalacothrixMalacothrix[47]
MallowMalva[47]
MamillariaMamillaria[47]
ManillagrassZoysia matrella[26]
MannagrassGlyceria[22]
MapleAcer[55]
MarbleseedOnosmodium[48]
MarshfernDryopteris thelypteris[28]
MascarenegrassZoysia tenuifolia[26]
MatgrassNardus[23]
MatrimonyvineLycium halimifolium[57]
MayapplePodophyllum[50]
MeadowrueThalictrum[54]
MedicMedicago[32]
MelicMelica[22]
MentzeliaMentzelia[47]
MesquiteProsopis[33], [57]
MilkvetchAstragalus[30]
MilkweedAsclepias[36]
MilletPanicum; Setaria[25]
MintMentha[47]
MitchellgrassAstrebla[19]
MockbishopweedPtilimnium[51]
MockcucumberEchinocystis[41]
MolassesgrassMelinis[22]
MoneywortLysimachia nummularia[47]
MonkeyflowerMimulus[47]
MonolepisMonolepis[48]
MoonseedMenispermum[47]
MorninggloryIpomoea[45]
MotherwortLeonurus[46]
MountainashSorbus[59]
MountainmintPycnanthemum[51]
MousetailMyosurus[48]
MudplantainHeteranthera[29]
MuhlyMuhlenbergia[22]
MulberryMorus[57]
MulleinVerbascum[54]
MuskthistleCarduus nutans[38]
MustardBrassica[38]
NaiadNajas[29]
NailwortParonychia[49]
NapiergrassPennisetum purpureum[24]
NasturtiumNasturtium[48]
NatalgrassRhynchelytrum roseum[25]
NeedleandthreadStipa comata[26]
NeedlegrassStipa[26]
NemastylisNemastylis[29]
NepetaNepeta[48]
NettleUrtica[54]
NightshadeSolanum[53]
NimblewillMuhlenbergia schreberi[23]
NitgrassGastridium[22]
NoseburnTragia[54]
NutgrassCyperus[27]
OakQuercus[58]
OakleechDasistoma[41]
OatAvena[19]
OatgrassArrhenatherum[19]
OkraHibiscus esculentus[44]
OnionAllium[29]
OniongrassMelica[22]
Orach, tumblingAtriplex rosea[37]
OrchardgrassDactylis[20]
OrcuttiaOrcuttia[23]
OregongrapeMahonia aquifolium[57]
OsageorangeMaclura[57]
OthakePalafoxia[49]
OxalisOxalis[49]
OxeyedaisyChrysanthemum leucanthemum[39]
PaintbrushCastilleja[38]
PaleseedConobea[40]
PampasgrassCortaderia[20]
PangolagrassDigitaria decumbens[20]
PanicumPanicum[23]
PaperflowerPsilostrophe[51]
PappusgrassPappophorum[24]
ParagrassPanicum purpurascens[23]
ParrotfeatherMyriophyllum[48]
ParsnipPastinaca[49]
PartheniumParthenium[49]
PartridgepeaCassia[31]
PaspalumPaspalum[24]
PawpawAsimina[55]
PeaPisum[33]
PeanutArachis[30]
PearPyrus communis[57]
PearlmilletPennisetum glaucum[24]
PearlwortSagina[52]
PeashrubCaragana[31], [56]
PeavineLathyrus[32]
PecanCarya illinoensis[56]
PectisPectis[49]
PedicularisPedicularis[49]
PellitoryParietaria[49]
PencilflowerStylosanthes[34]
PennisetumPennisetum[24]
PennycressThlaspi[54]
PenstemonPenstemon[49]
PenthorumPenthorum[49]
PeppergrassLenidium densiflorum[46]
PepperweedLepidium[46]
PepperwortMarsilea[28]
PerillaPerilla[49]
PersimmonDiospyros[56]
PhaceliaPhacelia[49]
PhloxPhlox[49]
PigeonpeaCajanus[31]
PigweedAmaranthus[35]
PimpernelAnagallis[35]
PinedropseedBlepharoneuron[19]
PinegrassCalamagrostis rubescens[20]
PinweedLechea[46]
PlantainPlantago[50]
PlumPrunus[57]
PlumegrassErianthus[21]
PoisonhemlockConium maculatum[40]
PoisonivyRhus radicans[58]
PoisonvetchAstragalus[30]
PokeberryPhytolacca[50]
PolemoniumPolemonium[50]
PolygalaPolygala[50]
PolypogonPolypogon[25]
PolytaeniaPolytaenia[50]
PondweedPotamogeton[29]
PoolmatZannichellia[30]
PoplarPopulus[57]
PoppymallowCallirhoë[38]
PorcupinegrassStipa spartea[26]
PortulacaPortulaca[50]
PotatoSolanum tuberosum[53]
PotatobeanApios[30]
PrairiecloverPetalostemum[33]
PrairieconeflowerRatibida[51]
PrairiegentianEustoma[42]
PricklyashXanthoxylum[59]
PricklypearOpuntia[48]
PricklypoppyArgemone[36]
PrincesplumeStanleya[53]
ProsoPanicum miliaceum[23]
PuncturevineTribulus[54]
PurplerocketIodanthus[45]
PurpletopTridens flavus[26]
PurslanePortulaca[50]
PussytoesAntennaria[35]
QuackgrassAgropyron repens[18]
QuakinggrassBriza[19]
QuickweedGalinsoga[43]
QuillwortIsoëtes[28]
RabbitbrushChrysothamnus[56]
RadishRaphanus[51]
RagweedAmbrosia[35]
RainlilyCooperia[29]
RapeBrassica rapa[38]
RaspberryRubus[58]
RattlesnakefernBotrychium[28]
RattlesnakerootPrenanthes[51]
RavennagrassErianthus ravennae[21]
RazorsedgeScleria[28]
RedbudCercis[31], [56]
RedcedarJuniperus virginiana[57]
RedtopAgrostis alba[18]
ReedPhragmites[24]
ReedgrassCalamagrostis[20]
RhodesgrassChloris gayana[20]
RhubarbRheum[51]
RiceOryza[23]
RicegrassOryzopsis[23]
Ricegrass, MandanX Striporyzopsis caduca[26]
RingwingCycloloma[40]
RockcressArabis[36]
RocketHesperis[44]
RocketsaladEruca[42]
RockjasmineAndrosace[35]
RoseRosa[58]
RosegentianSabatia[52]
RosemallowHibiscus[44]
RosinweedSilphium[53]
RotalaRotala[51]
RuelliaRuellia[51]
RushJuncus[28]
RushpeaHoffmanseggia[32]
RussianoliveElaeagnus[56]
RussianthistleSalsola[52]
RutabagaBrassica rapa[38]
RyeSecale[25]
RyegrassLolium[22]
SacatonSporobolus[25], [26]
SafflowerCarthamus[38]
SageSalvia[52]
SagebrushArtemisia[36], [55]
SagewortArtemisia[36]
SainfoinOnobrychis[33]
SalsifyTragopogon[54]
SaltbushAtriplex[37], [55]
SaltgrassDistichlis[21]
SamolusSamolus[52]
SandburCenchrus[20]
SandgrassTriplasis[26]
SandreedCalamovilfa[20]
SandverbenaAbronia[35]
SandwortArenaria[36]
SanicleSanicula[52]
SassafrasSassafras[59]
ScouringrushEquisetum[28]
ScurfpeaPsoralea[33]
SeabliteSuaeda[54]
SedgeCarex[27]
SeedboxLudwigia[47]
SeepweedSuaeda[54]
SeleniaSelenia[52]
SelfhealPrunella[51]
SennaCassia[31]
SensitivebriarSchrankia[34]
SensitivefernOnoclea[28]
SerradellaOrnithopus[33]
ServiceberryAmelanchier[55]
SesameSesamum[52]
SesbaniaSesbania[34]
ShepherdspurseCapsella[38]
ShootingstarDodecatheon[41]
SicklepodArabis canadensis[36]
SidaSida[52]
SileneSilene[52]
SilvergrassMiscanthus[22]
SisymbriumSisymbrium[53]
SkeletongrassGymnopogon[22]
SkeletonplantLygodesmia[47]
SkullcapScutellaria[52]
SleepygrassStipa robusta[26]
SloughgrassBeckmannia[19]
SmartweedPolygonum[50]
SmilograssOryzopsis miliacea[23]
Smutgrass, rattailSporobolus poiretii[26]
SnailseedCocculus[39]
SnakecottonFroelichia[43]
Snakeroot, whiteEupatorium rugosum[42]
SnakeweedGutierrezia[43], [57]
SnapweedImpatiens[45]
SneezeweedHelenium[44]
SnowberrySymphoricarpos[59]
Snow-on-the-mountainEuphorbia marginata[42]
SoapberrySapindus[59]
SoapweedYucca[30], [59]
SoapwortSaponaria[52]
SolomonplumeSmilacina[30]
SolomonsealPolygonatum[29]
SophoraSophora[34]
SorghumSorghum[25]
SorrelRumex[51]
SowthistleSonohus[53]
SoybeanGlycine[31]
SpanishneedlesBidens bipinnata[37]
SpeedwellVeronica[55]
SpermolepisSpermolepis[53]
SpiderflowerCleome[39]
SpiderwortTradescantia[30]
SpikesedgeEleocharis[27]
SpleenwortAspleninum[28]
SprangletopLeptochloa[22]
SpringbeautyClaytonia[39]
SpurgeEuphorbia[42]
SquirreltailSitanion[25]
St. augustinegrassStenotaphrum[26]
St. johnswortHypericum[45]
StargrassCynodon plectostachyum[20]
StenosiphonStenosiphon[54]
StickseedHackelia; Lappula[44], [46]
StillingiaStillingia[54]
StinkgrassEragrostis cilianensis[21]
StonecropSedum[52]
StrawberryFragaria[42]
SudangrassSorghum bicolor var. sudanense[25]
SugarcaneSaccharum[25]
SullaHedysarum[32]
SumacRhus[58]
SumpweedIva[45]
SunflowerHelianthus[44]
SunroseHelianthemum[44]
SweetcloverMelilotus[33]
SweetflagAcorus[29]
SweetpeaLathyrus odoratus[32]
SweetpotatoIpomoea batatas[45]
SweetrootOsmorhiza[49]
SwitchgrassPanicum virgatum[24]
SycamorePlatanus[57]
TaenidiaTaenidia[54]
TamariskTamarix[59]
TangierpeaLathyrus tingitanus[32]
TangleheadHeteropogon[22]
TansyTanacetum[54]
TansymustardDescurainia[41]
TeffEragrostis tef[21]
TeosinteEuchlaena[21]
TephrosiaTephrosia[34]
ThaspiumThaspium[54]
ThatchgrassHyparrhenia hirta[22]
ThemedaThemeda[26]
ThermopsisThermopsis[34]
Thimbleberry, fragrantRubus odoratus[58]
ThistleCirsium[39]
ThreeawnAristida[19]
TickcloverDesmodium[31]
TickseedCorispermum[40]
TidestromiaTidestromia[54]
TimothyPhleum[24]
ToadflaxLinaria[46]
TobaccoNicotiana[48]
TobosaHilaria mutica[22]
TomatoLycopersicum[47]
ToothwortDentaria[41]
TorpedograssPanicum repens[23]
TovaraTovara[54]
TownsendiaTownsendia[54]
TreeofheavenAilanthus[55]
TrefoilLotus[32]
TrichlorisTrichloris[26]
TridensTridens[26]
TrigonellaTrigonella[34]
TrisetumTrisetum[26]
TrumpetcreeperCampsis[56]
TumblegrassSchedonnardus[25]
TumblemustardSisymbrium altissimum[53]
TumbleweedAmaranthus graecizans[35]
TurnipBrassica napus[38]
UniolaUniola[26]
VaseygrassPaspalum urvillei[24]
VelvetbeanStizolobium[34]
VelvetgrassHolcus[22]
VelvetleafAbutilon theophrasti[35]
VenuslookingglassSpecularia[53]
VerbenaVerbena[54]
VernalgrassAnthoxanthum[18]
VetchVicia[34]
ViburnumViburnum[59]
VinemesquitePanicum obtusum[23]
VioletViola[55]
VirginsbowerClematis virginiana[39]
Wahoo, easternEuonymus atropurpureus[56]
WalkingfernCamptosorus[28]
WalnutJuglans[57]
WatercressRorippa[51]
WaterhemlockCicuta[39]
WaterhempAcnida[35]
Waterhyssop, diskBacopa rotundifolia[37]
WaterleafHydrophyllum[45]
WaterlilyNymphaea[48]
WaterplantainAlisma[29]
WaterprimroseJussiaea[45]
WaterstarwortCallitriche[38]
WedgescaleSphenopholis[25]
WesterndaisyAstranthium[37]
WheatTriticum[26]
WheatgrassAgropyron[18]
WhitegrassLeersia virginica[22]
WidgeongrassRuppia[30]
WildbeanStrophostyles[34]
WildgingerAsarum[36]
WildindigoBaptisia[31]
WildriceZizania; Zizaniopsis[26]
WildryeElymus[21]
WillowSalix[58]
WillowweedEpilobium[41]
WindmillgrassChloris verticillata[20]
WingstemVerbesina alternifolia[55]
WintercressBarbarea[37]
WinterfatEurotia[56]
WirelettuceStephanomeria[54]
WisteriaWisteria[35], [59]
WitchgrassLeptoloma; Panicum[22], [23]
WitchweedStriga lutea[54]
WolffiaWolffia[30]
WolftailLycurus[22]
WoodfernDryopteris[28]
WoodnettleLaportea[46]
WoodreedCinna[20]
WoodsiaWoodsia[28]
YamDioscorea[29]
YarrowAchillea[35]
YerbadetajoEclipta alba[41]
ZinniaZinnia[55]
ZiziaZizia[55]
ZoysiaZoysia[26]