Weed Name Bayer Code

Family

Genus

Species

quackgrass AGRRE Gramineae Elytrigia repens (L.) Nevski

quakinggrass, lesser

BRZMI Gramineae Briza minor L.

queen-of-the-meadow

FIIUL Rosaceae Filipendula ulmaria (L.) Maxim.

queen-of-the-prairie

FIIRU Rosaceae Filipendula rubra (Hill) B.L.Robins.

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Weed Name

Bayer Code

Family

Genus

Species

rabbit-tobbaco GNAOB Compositae Gnaphalium polycephalum Michx.

rabbitbells CVTRO Leguminosae Crotalaria rotundifolia Gmel.

rabbitbrush CYTSS Compositae Chrysothamnus sp.

rabbitbrush, Douglas

CYTVI Compositae Chrysothamnus viscidiflorus (Hook.) Nutt.

rabbitbrush, Parry

CYTPA Compositae Chrysothamnus parryi (Gray) Greene

rabbitbrush, desert

CYTPN Compositae Chrysothamnus paniculatus (Gray) Hall

rabbitbrush, gray

CYTNA Compositae Chrysothamnus nauseosus (Pallas) Britt.

rabbitbrush, greenplume

CYTNG Compositae Chrysothamnus nauseosus ssp. graveolens (Nutt.) Piper

rabbitbrush, southwest

CYTPU Compositae Chrysothamnus pulchellus (Gray) Greene

https://www.msu.edu/~zandstra/Complete-Weed-List/Weed-List-QY.htm#top#top�

rabbitfootgrass POHMO Gramineae Alopecurus monspeliensis (L.) Desf.

radish RAPSN Cruciferae Raphanus sativus L.

radish, wild RAPRA Cruciferae Raphanus raphanistrum L.

ragweed, blood AMBTT Compositae Ambrosia trifida var. texana Scheele

ragweed, common

AMBEL Compositae Ambrosia artemisiifolia L.

ragweed, false FRSST Compositae Ambrosia tenuifolia Spreng.

ragweed, giant AMBTR Compositae Ambrosia trifida L.

ragweed, lanceleaf

AMBBI Compositae Ambrosia bidentata Michx.

ragweed, parthenium

FRSCO Compositae Ambrosia maritima auct., non L.

ragweed, perennial

AMBPC Compositae Ambrosia psilostachya var. coronopifolia (T. & G.) Farw.

ragweed, western

AMBPS Compositae Ambrosia psilostachya DC.

ragwort SENSS Compositae Senecio sp.

ragwort, tansy SENJA Compositae Senecio jacobaea L.

rape, bird BRSRO Cruciferae Brassica rapa L. ssp. oleifera (DC.) Metzg.

raspberry RUBSS Rosaceae Rubus sp.

raspberry, American red

RUBSG Rosaceae Rubus idaeus var. strigosus (Michx.)

Maxim.

raspberry, European red

RUBID Rosaceae Rubus idaeus L.

raspberry, Molucca

RUBMO Rosaceae Rubus moluccanus L.

rattle, yellow RHIMI Scrophulariaceae Rhinanthus minor L.

rattlebox CVTSA Leguminosae Crotalaria sagittalis L.

rattlebox, wedgeleaf

CVTRE Leguminosae Crotalaria retusa L.

rattlebush SEBPU Leguminosae Daubentonia punicea (Cav.) DC.

rattlebush, Drummond

SEBDR Leguminosae Sesbania drummondii (Rydb.) Cory

rattlesnakeweed HIEVE Compositae Hieracium venosum L.

ravennagrass ERNRA Gramineae Erianthus ravennae (L.) Beauv.

redbud, eastern CCSCA Fabaceae Cercis canadensis L.

redcedar, eastern

IUPVI Cupressaceae Juniperus virginiana L.

redcedar, southern

IUPSL Cupressaceae Juniperus silicicola (Small) Bailey

redroot LAHTI Haemodoraceae Lachnanthes tinctorum (Gmel.) Sprague

redstem AMMAU Lythraceae Ammannia auriculata Willd.

redtopgrass AGSGI Gramineae Agrostis alba L. var. stolonifera (L.) SM.

redvine BRVCI Polygonaceae Brunnichia cirrhosa Gaertn.

redweed MEOCO Sterculiaceae Melochia corchorifolia L.

reed, common PHRCO Gramineae Phragmites australis (Cav.) Trin. ex Steud.

reed, giant ABKDO Gramineae Arundo donax L.

reedgrass, bluejoint

CLMCD Poaceae Calamagrostis canadensis (Michx.) Nutt.

rescuegrass BROCA Gramineae Bromus schraderi Kunth

rhodesgrass CHRGA Gramineae Chloris gayana Kunth

rhododendron, Canadian

RHOCA Ericaceae Rhododendron canadense (L.) Torr.

rice, including red rice

ORYSA Gramineae Oryza sativa L.

ricegrass SPTAN Gramineae Spartina anglica C.E.Hubb

rocket many Cruciferae many many

rocket, London SSYIR Cruciferae Sisymbrium irio L.

rocket, garden ERUVE Cruciferae Eruca vesicaria (L.) Cav. ssp. sativa (Mill.) Thell.

rocket, sand DIPMU Cruciferae Diplotaxis muralis (L.) DC.

rocket, wall DIPTE Cruciferae Diplotaxis tenuifolia (L.) DC.

rocket, yellow BARVU Cruciferae Barbarea vulgaris R. Br.

rockpurslane, desert

CLNCM Portulacaceae Calandrinia ciliata (R.&P.) DC. var. menziesii (Hook.)

Macbr.

rockpurslane, redmaids

CLNCM Portulacaceae Calandrinia caulescens (R.&P.) DC. var. menziesii (Hook.) Macbr.

rose, Cherokee ROSLA Rosaceae Rosa laevigata Michx.

rose, Macartney ROSBC Rosaceae Rosa bracteata J.C.Wendl

rose, Scotch ROSPP Rosaceae Rosa pimpinellifolia L.

rose, Virginia ROSVI Rosaceae Rosa virginiana Mill.

rose, cinnamon ROSMJ Rosaceae Rosa majalis Herrm.

rose, dog ROSCN Rosaceae Rosa canina L.

rose, multiflora ROSMU Rosaceae Rosa multiflora Thunb. ex Murr.

rose, prairie wild

ROSAK Rosaceae Rosa arkansana Porter

rose, prickly ROSAC Rosaceae Rosa acicularis Lindl.

rose, rugosa ROSRG Rosaceae Rosa rugosa Thunb.

rose, sweetbriar ROSRB Rosaceae Rosa rubiginosa L.

rosinweed SIPSS Compositae Silphium sp.

rosinweed, showy

SIPSP Compositae Silphium asperrimum Hook.

rosinweed, wholeleaf

SIPIN Compositae Silphium integrifolium Michx.

rubberweed, bitter

HYXOD Compositae Hymenoxys odorata DC.

rue, African PEGHA Zygophyllaceae Peganum harmala L.

rue, common RUAGR Rutaceae Ruta graveolens L.

rush IUNSS Juncaceae Juncus sp.

rush (flowering)

IUNSS Juncaceae Juncus sp.

rush, Baltic IUNBA Juncaceae Juncus balticus Willd.

rush, needle IUNRO Juncaceae Juncus roemerianus Scheele

rush, slender IUNTE Juncaceae Juncus tenuis Willd.

rush, soft IUNEF Juncaceae Juncus effusus L.

rush, toad IUNBU Juncaceae Juncus bufonius L.

rush, tufted IUNAN Juncaceae Juncus acuminatus Michx.

rustweed POEPR Loganiaceae Polypremum procumbens L.

rye (volunteer) SECCE Gramineae Secale cereale L.

ryegrass LOLSS Gramineae Lolium sp.

ryegrass, Italian LOLMU Gramineae Lolium multiflorum Lam.

ryegrass, hardy LOLRE Gramineae Lolium remotum L.

ryegrass, perennial

LOLPE Gramineae Lolium perenne L.

ryegrass, poison

LOLTE Gramineae Lolium temulentum L.

ryegrass, rigid LOLRI Gramineae Lolium rigidum Gaudin

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https://www.msu.edu/~zandstra/Complete-Weed-List/Weed-List-QY.htm#top#top�

Weed Name

Bayer Code

Family

Genus

Species

sacaton, alkali SPZAI Gramineae Sporobolus airoides Torr.

sage SALSS Labiatae Salvia sp.

sage, black SALMF Labiatae Salvia mellifera Greene

sage, blue SALAZ Labiatae Salvia azurea Lam.

sage, lanceleaf SALRE Labiatae Salvia reflexa Hornem.

sage, meadow SALPR Labiatae Salvia pratensis L.

sage, Mediterranean

SALAE Labiatae Salvia aethiopis L.

sage, pitchers SALAG Labiatae Salvia azurea var. grandiflora Benth.

sage, white SALAP Labiatae Salvia apiana Jeps.

sage, whorled SALVE Labiatae Salvia verticillata L.

sagebrush, big ARTTR Compositae Artemisia tridentata Nutt.

sagebrush, California

ARTCA Compositae Artemisia californica Less.

sagebrush, fringed

ARTFR Compositae Artemisia frigida Willd.

sagebrush, sand ARTFI Compositae Artemisia filifolia Torr.

sagewort, common

ARTCM Compositae Artemisia campestris L.

sagewort, field ARTCC Compositae Artemisia campestris ssp. caudata (Michx.) Hall & Clements

salmonberry RUBSP Rosaceae Rubus spectabilis Pursh

salsify, common TROPS Compositae Tragopogon porrifolius L.

salsify, meadow TROPR Compositae Tragopogon pratensis L.

salsify, western TRODM Compositae Tragopogon dubius Scop.

saltbush, Australian

ATXSE Chenopodiaceae Atriplex semibaccata R.Br.

saltbush, fourwing

ATXCA Chenopodiaceae Atriplex canescens (Pursh) Nuttall

saltbush, Salton ATXEF Chenopodiaceae Atriplex elegans ssp. fasciculata (S.Wats.) Hall & Clements

saltbush, shadscale

ATXCO Chenopodiaceae Atriplex confertifolia (Torr. & Frem.) S.Wats.

saltbush, silver myrtle

ATXSS Chenopodiaceae Atriplex sp.

saltbush, silverscale

ATXAR Chenopodiaceae Atriplex argentea Nutt.

saltbush, wheelscale

ATXEL Chenopodiaceae Atriplex elegans (Moq.) D.Dietr.

saltcedar TAAPE Tamariscaceae Tamarix odessana Stev. ex Bunge

saltgrass, seashore

DISSP Gramineae Distichlis spicata (L.) Greene

saltwort, Mediterranean

SASVE Chenopodiaceae Salsola vermiculata L.

saltwort, spiny SASKA Chenopodiaceae Salsola kali L.

salvinia SAVSS Salviniaceae Salvinia sp.

salvinia, giant SAVAU Salviniaceae Salvinia auriculata Aubl.

sandbur CCHSS Gramineae Cenchrus sp.

sandbur (seedling)

CCHSS Gramineae Cenchrus sp.

sandbur, dune CCHTR Gramineae Cenchrus tribuloides L.

sandbur, field CCHIN Gramineae Cenchrus incertus M.A.Curtis

sandbur, longspine

CCHPA Gramineae Cenchrus longispinus (Hack.) Fern.

sandbur, southern

CCHEC Gramineae Cenchrus echinatus L.

sandspur KRALA Krameriaceae Krameria lanceolata Torr.

sandspurry, red SPBRU Caryophyllaceae Spergularia rubra (L.) J. & C.Presl

sandwort, grove MGJLA Caryophyllaceae Moehringia lateriflora (L.) Fenzl.

sandwort, thymeleaf

ARISE Caryophyllaceae Arenaria serpyllifolia L.

sarsaparillavine SMIPU Liliaceae Smilax pumila Walt.

sassafras SSAAL Lauraceae Sassafras albidum (Nutt.) Nees

satintail, Brazilian

IMPBR Gramineae Imperata brasiliensis Trin.

savory, summer STIHO Labiatae Satureja hortensis L.

sawbriar, cat SMIGL Liliaceae Smilax glauca Walt.

sawgrass CLKJA Cyperaceae Cladium jamaicense Crantz

scabious, starry CJNVU Compositae Crupina vulgaris Cass.

scaleseed, spreading

SMPDI Umbelliferae Spermolepis divaricata (Walt.) Britt.

scouringrush EQUHY Equisetaceae Equisetum hyemale L.

scurfpea, lemon PSRSS Leguminosae Psoralea sp.

sea-rocket CAKMA Cruciferae Cakile maritima Scop.

sedge, annual CYPCP Cyperaceae Cyperus compressus L.

sedge, beaked CRXRO Cyperaceae Carex rostrata Stokes ex With.

sedge, cylindric CYPRT Cyperaceae Cyperus retrorsus Chapman

sedge, Frank CRXFR Cyperaceae Carex frankii Kunth

sedge, giant whitetop

DICLA Cyperaceae Dichromena latifolia Baldwin ex Ell.

sedge, globe CYPGL Cyperaceae Cyperus globulosus Aublet

sedge, green CYPVI Cyperaceae Cyperus virens Michx.

sedge, hop CRXLU Cyperaceae Carex lupulina Muhl. ex Willd.

sedge, knob CYPPV Cyperaceae Cyperus pseudovegetus Steud.

sedge, Leconte CYPLE Cyperaceae Cyperus lecontei Torr.

sedge, Louisiana

CRXLN Cyperaceae Carex louisianica Bailey

sedge, Nebraska CRXNB Cyperaceae Carex nebraskensis Dewey

sedge, nerved waxy

CRXVR Cyperaceae Carex verrucosa Muhl.

sedge, pale CRXPL Cyperaceae Carex pallescens L.

sedge, ripgut CRXLA Cyperaceae Carex lacustris Willd.

sedge, rough CRXSN Cyperaceae Carex senta Boott

sedge, smallflower

CYPDI Cyperaceae Cyperus difformis L.

umbrella

sedge, sugargrass

CRXAT Cyperaceae Carex atherodes Spreng.

sedge, Surinam CYPSU Cyperaceae Cyperus surinamensis Rottb.

sedge, Texas CYPPO Cyperaceae Cyperus polystachyos Rottb. var. texensis (Torr.) Fern.

sedge, water CRXAQ Cyperaceae Carex aquatilis Wahlenb.

sedge, waxy CRXGL Cyperaceae Carex glaucescens Ell.

sedge, whitetop DICCO Cyperaceae Dichromena colorata (L.) A.S.Hitchc.

sedge, widefruit CRXEU Cyperaceae Carex eurycarPa Holm

sedge, wolftail CRXCH Cyperaceae Carex cherokeensis Schwein.

sedge, woolfruit CRXLC Cyperaceae Carex lasiocarPa Ehrh.

sedge, yellow-white

CRXAL Cyperaceae Carex albolutescens Schwein.

seepweed, alkali SUEFR Chenopodiaceae Suaeda fruticosa Forsk.

seepweed, western

SUEOC Chenopodiaceae Suaeda occidentalis S.Wats.

senna, coffee CASOC Leguminosae Cassia occidentalis L.

senna, wild CASMA Leguminosae Cassia marilandica L.

sensitivebriar, catclaw

SCNNU Leguminosae Schrankia uncinata Willd.

sensitivebriar, littleleaf

SCNMI Leguminosae Schrankia microphylla (Dryand.)

Macbr.

sensitiveplant MIMPU Leguminosae Mimosa pudica L.

sensitiveplant, giant

MIMIN Leguminosae Mimosa invisa Mart.

serviceberry AMESS Rosaceae Amelanchier sp.

serviceberry, Allegheny

AMELA Rosaceae Amelanchier laevis Wieg.

sesbania SEBSS Leguminosae Sesbania sp.

sesbania, bagpod

SEBVI Leguminosae Sesbania vesicaria (Jacq.) Ell.

sesbania, hemp SEBEX Leguminosae Sesbania exaltata (Raf.) Rydb. ex A.W.Hill

seymeria, smooth

SEYCA Scrophulariaceae Seymeria cassioides (Walt.) Blake

seymeria, sticky SEYPE Scrophulariaceae Seymeria pectinata Pursh.

shattercane SORVU Gramineae Sorghum bicolor (L.) Moench

she-oak, Brazilian swamp

CSUGL Casuarinaceae Casuarina glauca Sieb.

shepherdsneedle SCAPV Umbelliferae Scandix pecten-veneris L.

shepherdspurse CAPBP Cruciferae Capsella bursa-pastoris (L.) Medicus

sibara SIBVI Cruciferae Sibara virginica (L.) Rollins

sicklegrass PHOIN Gramineae Parapholis incurva (L.) C.E.Hubb.

sicklepod CASOB Leguminosae Cassia obtusifolia L.

sickleweed, longleaf

FALVU Umbelliferae Falcaria vulgaris Bernh.

sida, alkali SIDHE Malvaceae Sida hederacea (Dougl.) Torr.

sida, arrowleaf SIDRH Malvaceae Sida rhombifolia L.

sida, heartleaf SIDCO Malvaceae Sida cordifolia L.

sida, prickly SIDSP Malvaceae Sida alba L./Mill.

sida, southern SIDAC Malvaceae Sida acuta Burm. f.

signalgrass BRASS Gramineae Brachiaria sp.

signalgrass, broadleaf

BRAPP Gramineae Brachiaria platyphylla (Griseb.) Nash

signalgrass, fringed

BRACI Gramineae Brachiaria ciliatissima (Buckl.) Chase

signalgrass, narrowleaf

BRAPI Gramineae Brachiaria piligera (F.Muell.) Hughes

silkgrass CYRGR Compositae Chrysopsis graminifolia (Michx.) Nutt.

silk-reed NEYRE Gramineae Neyraudia reynaudiana (Kunth) Keng ex A.S.Hitchc.

silktree ALBJU Leguminosae Albizia julibrissin Durazz.

skeletonweed LYGJU Compositae Lygodesmia juncea (Pursh) D.Don

skullcap, hoary SCDIN Labiatae Scutellaria incana Biehler

skullcap, marsh SCDGA Labiatae Scutellaria galericulata L.

skunk-cabbage, common

SYLFO Araceae Symplocarpus foetidus (L.) Nutt.

smartweed, POLPT Polygonaceae Polygonum punctatum Ell.

dotted

smartweed, green

POLSC Polygonaceae Polygonum scabrum Moench

smartweed, hedge

POLSD Polygonaceae Polygonum scandens L.

smartweed, marshpepper

POLHY Polygonaceae Polygonum hydropiper L.

smartweed, mild

POLHP Polygonaceae Polygonum hydropiperoides Michx.

smartweed, Pennsylvania

POLPY Polygonaceae Polygonum pensylvanicum L.

smartweed, prickly

POLBU Polygonaceae Polygonum bungeanum Turcz.

smartweed, swamp

POLCC Polygonaceae Polygonum coccineum Muhl. ex Willd.

smartweed, water

POLAM Polygonaceae Polygonum amphibium L.

smartweed, woolly

POLTO Polygonaceae Polygonum lapathifolium L. ssp. pallidum (With.) Fr.

smartweeds (annuals)

POLSS Polygonaceae Polygonum sp.

smellmelon CUMMD Cucurbitaceae Cucumis melo L. var. dudaim Naud.

smutgrass SPZPO Gramineae Sporobolus poiretti (Roem. & Schult.) Hitchc.

snakeroot, black CIMRA Ranunculaceae Cimicifuga racemosa (L.) Nutt.

snakeroot, button

ERXYU Umbelliferae Eryngium yuccifolium Michx.

snakeroot, white EUPRU Compositae Eupatorium rugosum Houtt.

snakeweed GUESS Compositae Gutierrezia sp.

snakeweed, broom

GUESA Compositae Gutierrezia sarothrae (Pursh) Britt. & Rusby

snakeweed, threadleaf

GUEMI Compositae Gutierrezia microcephala (DC.) Gray

snapdragon ATHMM Scrophulariaceae Antirrhinum majus L.

snapdragon, dwarf

CHNMI Scrophulariaceae Chaenorrhinum minus (L.) Lange

sneezeweed, bitter

HENAM Compositae Helenium amarum (Raf.) H.Rock

sneezeweed, common

HENAU Compositae Helenium autumnale L.

sneezeweed, orange

HENHO Compositae Helenium hoopesii Gray

sneezeweed, purplehead

HENFL Compositae Helenium flexuosum Raf.

snowberry, common

SYPAL Caprifoliaceae Symphoricarpos albus (L.) S.F.Blake

snowberry, western

SYPOC Caprifoliaceae Symphoricarpos occidentalis Hook.

snowflake, summer

LEJAE Amaryllidaceae Leucojum aestivum L.

snow-on-the-mountain

EPHMG Euphorbiaceae Euphorbia marginata Pursh

soap plant CHLPO Liliaceae Chlorogalum pomeridianum (KER./DC.) Kunth

soapberry, western

SAKSD Sapindaceae Sapindus saponaria L. var. drummondii (H. & A.) L.Benson

soda apple, tropical

SOLVI Solanaceae Solanum viarum Dunal

sophora, silky SOBSR Leguminosae Sophora sericea Nutt.

sorghum (volunteer)

SORSS Gramineae Sorghum sp.

sorghum, almum

SORAL Gramineae Sorghum almum Parod.

sorrel, green RUMAC Polygonaceae Rumex acetosa L.

sorrel, heartwing

RUMHA Polygonaceae Rumex hastatulus Baldw. ex Ell.

sorrel, red RUMAA Polygonaceae Rumex acetosella L.

sourgrass TRCIN Gramineae Trichachne insularis (L.) Mez ex Ekman

sourwood, common

OXDAR Ericaceae Oxydendrum arboreum (L.) DC.

sowthistle, annual

SONOL Compositae Sonchus oleraceus L.

sowthistle, marsh

SONAU Compositae Sonchus arvensis spp. uliginosus (Bieb.) Nyman

sowthistle, perennial

SONAR Compositae Sonchus arvensis L.

sowthistle, spiny

SONAS Compositae Sonchus asPer (L.) Hill

spanishneedles BIDBI Compositae Bidens bipinnata L.

spatterdock NUPLM Nymphaeaceae Nuphar luteum ssp. macroPhyllum (Small) E.O.Beal

spatterdock, Rocky Mountain

NUPLP Nymphaeaceae Nuphar luteum ssp. polysepalum (Engelm.)

E.O.Beal

spearmint MENSP Labiatae Mentha spicata L.

speedwell, birdseye

VERPE Scrophulariaceae Veronica buxbaumii Tenore

speedwell, common

VEROF Scrophulariaceae Veronica officinalis L.

speedwell, corn VERAR Scrophulariaceae Veronica arvensis L.

speedwell, field VERAG Scrophulariaceae Veronica agrestis L.

speedwell, germander

VERCH Scrophulariaceae Veronica chamaedrys L.

speedwell, ivyleaf

VERHE Scrophulariaceae Veronica hederifolia L.

speedwell, longleaf

VERLO Scrophulariaceae Veronica longifolia L.

speedwell, Persian

VERPE Scrophulariaceae Veronica persica Poir.

speedwell, purslane

VERPG Scrophulariaceae Veronica peregrina L.

speedwell, slender

VERFI Scrophulariaceae Veronica filiformis Sm.

speedwell, Snow

VERBI Scrophulariaceae Veronica biloba L.

speedwell, thymeleaf

VERSE Scrophulariaceae Veronica serpyllifolia L.

speedwell, water

VERAA Scrophulariaceae Veronica anagallis-aquatica L.

speedwell, wayside

VERPO Scrophulariaceae Veronica polita Fries

speedwell, western purslane

VERPX Scrophulariaceae Veronica peregrina ssp. xalapensis (H.B.K.)

Pennell

spicebush LIESS Lauraceae Lindera sp.

spiderflower CLEHA Capparidaceae Cleome hassleriana Chodat

spiderlily, red LYRRA Amaryllidaceae Lycoris radiata (L'Her.) Herb.

spiderling, Coulter

BOECO Nyctaginaceae Boerhavia coulteri (Hook. f.) S.Wats.

spiderling, erect BOEER Nyctaginaceae Boerhavia erecta L.

spiderling red BOEDI Nyctaginaceae Boerhavia diffusa L.

spiderwort, common

TRAOH Commelinaceae Tradescantia ohiensis Raf.

spiderwort, tropical

COMBE Commelinaceae Commelina benghalensis L.

spiderwort, white flowered

TRAFL Commelinaceae Tradescantia fluminensis Vell.

spikerush ELOSS Cyperaceae Eleocharis sp.

spikerush, beaked

ELORO Cyperaceae Eleocharis rostellata Torr.

spikerush, blunt ELOOB Cyperaceae Eleocharis obtusa (Willd.) Schultes

spikerush, creeping

ELOPA Cyperaceae Eleocharis palustris (L.) R. & S.

spikerush, dwarf

ELOPV Cyperaceae Eleocharis parvula (R. & S.) Link ex Buff, Nees & Sauer

spikerush, gulfcoast

ELOCE Cyperaceae Eleocharis cellulosa Torr.

spikerush, needle

ELOAC Cyperaceae Eleocharis acicularis (L.) R. & S.

spikerush, slender

ELOBA Cyperaceae Eleocharis baldwinii (Torr.) Chapman

spikerush, sprouting

ELOVI Cyperaceae Eleocharis vivipara Link

spikerush, squarestem

ELOQU Cyperaceae Eleocharis quadrangulata (Michx.) R. & S.

spikeweed, common

HEZPU Compositae Hemizonia pungens (Hook. & Arn.) T. & G.

spoonflower PETSA Araceae Peltandra sagittifolia (Michx.) Morong

sprangletop LEFSS Gramineae Leptochloa sp.

sprangletop, Amazon

LEFPA Gramineae Leptochloa panicoides (Presl) Hitchc.

sprangletop, bearded

LEFFA Gramineae Leptochloa fascicularis (Lam.) Gray

sprangletop, Chinese

LEFCH Gramineae Leptochloa chinensis (L.) Nees

sprangletop, green

LEFDU Gramineae Leptochloa dubia (H.B.K.) Nees

sprangletop, Mexican

LEFUN Gramineae Leptochloa uninervia (Presl) Hitchc. & Chase

sprangletop, red LEFFI Gramineae Leptochloa filiformis (Lam.) Beauv.

spring beauty, broadleaf

CLACA Portulacaceae Claytonia caroliniana Michx.

spring beauty, narrowleaf

CLAVI Portulacaceae Claytonia virginica L.

spruce, white PIEGA Pinaceae Picea glauca (Moench) Voss

spurge EPHSS Euphorbiaceae Euphorbia sp.

spurge, creeping EPHSN Euphorbiaceae Euphorbia serpens H.B.K.

spurge, cypress EPHCY Euphorbiaceae Euphorbia cyparissias L.

spurge, flowering

EPHCO Euphorbiaceae Euphorbia corollata L.

spurge, garden EPHHI Euphorbiaceae Euphorbia hirta L.

spurge, graceful EPHHY Euphorbiaceae Euphorbia indica Lam.

spurge, ground EPHPT Euphorbiaceae Euphorbia prostrata Ait.

spurge, hairy EPHVE Euphorbiaceae Euphorbia vermiculata Raf.

spurge, hyssop EPHHS Euphorbiaceae Euphorbia hyssopifolia L.

spurge, leafy EPHES Euphorbiaceae Euphorbia esula L.

spurge, littleleaf EPHMI Euphorbiaceae Euphorbia micromera Boiss. ex Engelm.

spurge, netseed EPHSQ Euphorbiaceae Euphorbia spathulata Lam.

spurge, nodding EPHNU Euphorbiaceae Euphorbia nutans Lag.

spurge, petty EPHPE Euphorbiaceae Euphorbia peplus L.

spurge, prostrate

EPHHT Euphorbiaceae Euphorbia humistrata Engelm. ex Gray

spurge, ridgeseed

EPHGL Euphorbiaceae Euphorbia glyptosperma Engelm.

spurge, spotted EPHMA Euphorbiaceae Euphorbia maculata L.

spurge, sun EPHHE Euphorbiaceae Euphorbia helioscopia L.

spurge, toothed EPHDE Euphorbiaceae Euphorbia dentata Michx.

spurge, toothed EPHSR Euphorbiaceae Euphorbia serrata L.

spurge, whitemargin

EPHAL Euphorbiaceae Euphorbia albomarginata T. & G.

spurry, corn SPRAR Caryophyllaceae Spergula arvensis L.

spurry, umbrella HLOUM Caryophyllaceae Holosteum umbellatum L.

squirreltail SITHY Gramineae Sitanion hystrix (Nutt.) J.G.Smith

St.Augustine grass, common

STPSE Gramineae Stenotaphrum americanum Schrank

St.Johnswort, common

HYPPE Hypericaceae Hypericum perforatum L.

St.Johnswort, golden

HYPFR Hypericaceae Hypericum frondosum Michx.

St.Johnswort, Irish

HYPCD Guttiferae Hypericum canadense L.

St.Johnswort, marsh

HYPVI Hypericaceae Hypericum viginicum L.

St.Johnswort, spotted

HYPPU Hypericaceae Hypericum punctatum Lam.

star of Bethlehem

OTGUM Liliaceae Ornithogalum umbellatum L.

star of Bethlehem, nodding

OTGNU Liliaceae Ornithogalum nutans L.

starbur, bristly ACNHI Compositae Acanthospermum hispidum DC.

starbur, Paraguay

ACNAU Compositae Acanthospermum australe (Loefl.) Ktze.

star-flower TNTBO Primulaceae Trientalis borealis Raf.

stargrass FINFI Cyperaceae Ficinia filiformis (Lam.) Schrad.

starthistle CENSS Compositae Centaurea sp.

starthistle, Iberian

CENIB Compositae Centaurea iberica Trev. ex Spreng.

starthistle, Malta

CENME Compositae Centaurea melitensis L.

starthistle, purple

CENCA Compositae Centaurea calcitrapa L.

starthistle, yellow

CENSO Compositae Centaurea solstitialis L.

starwort, Easterbell

STEHO Caryophyllaceae Stellaria holostea L.

starwort, little STEGR Caryophyllaceae Stellaria graminea L.

starwort, water MYTAQ Caryophyllaceae Myosoton aquaticum (L.) Moench

stickleaf, desert MNZMU Loasaceae Mentzelia multiflora (Nutt.) Gray

stickleaf, tenpetal

MNZDE Loasaceae Mentzelia decapetala (Pursh) Urban & Gilg.

stickleaf, whitestem

MNZAL Loasaceae Mentzelia albicaulis (Dougl. ex Hook.) T. & G.

stickseed, western

HACFL Boraginaceae Hackelia floribunda (Lehm.) I.M.Johnst.

sticktight, European

LPLSQ Boraginaceae Lappula echinata Gilib.

sticktight, western

LPLOC Boraginaceae Lappula occidentalis (S.Wats.) Greene

stinkgrass ERAME Gramineae Eragrostis major Host

stinkweed PLUCA Compositae Pluchea camphorata (L.) DC.

stock, common MTLIN Cruciferae Matthiola incana (L.) R.Br.

stock, evening MTLLB Cruciferae Matthiola bicornis (Sibth. & Sm.) DC.

stock, Malcolm MAMAF Cruciferae Malcolmia africana (L.) R.Br.

stonecrop, live forever

SEDTE Crassulaceae Sedum telephium L.

stonecrop, mossy

SEDAC Crassulaceae Sedum acre L.

stonecrop, two row

SEDSU Crassulaceae Sedum spurium Bieb.

strawberry, wild FRAVI Rosaceae Fragaria virginiana Duchesne

sugarcane, wild SACSP Gramineae Saccharum spontaneum L.

sumac RHUSS Anacardiaceae Rhus sp.

sumac, dwarf RHUCO Anacardiaceae Rhus copallina L.

sumac, laurel RHULU Anacardiaceae Rhus laurina Nutt.

sumac, poison TOXVX Anacardiaceae Toxicodendron vernix (L.) O.Kuntze

sumac, prairie RHULA Anacardiaceae Rhus lanceolata (Gray) Britt.

sumac, shining RHUCH Anacardiaceae Rhus copallina L.

sumac, smooth RHUGL Anacardiaceae Rhus glabra L.

sumac, staghorn RHUTY Anacardiaceae Rhus typhina L.

sumac, sugar RHUOV Anacardiaceae Rhus ovata S.Wats.

summergrass DIGSA Gramineae Digitaria fimbriata Link

sumpweed, poverty

IVAAX Compositae Iva axillaris Pursh

sumpweed, rough

IVACI Compositae Iva ciliata Willd.

sundrops, perennial

OEOPE Onagraceae Oenothera perennis L.

sunflower (volunteer)

HELAN Compositae Helianthus annuus L.

sunflower, bright

HELLA Compositae Helianthus laetiflorus Pers.

sunflower, common

HELAN Compositae Helianthus annuus L.

sunflower, Maximilian

HELMA Compositae Helianthus maximilianii Schrad.

sunflower, prairie

HELPE Compositae Helianthus petiolaris Nutt.

sunflower, stiff HELRI Compositae Helianthus rigidus (Cass.) Desf.

supplejack, Alabama

BEHSC Rhamnaceae Berchemia scandens (Hill) K.Koch

swainsonpea SWASA Leguminosae Swainsonia salsula (Pall.) DC.

swallowwort, black

CYKNI Asclepiadaceae Cynanchum nigrum (L.) Pers.

swallowwort, white

CYKVI Asclepiadaceae Cynanchum vincetoxicum (L.) Pers.

sweetclover MEUSS Leguminosae Melilotus sp.

sweetclover, Indian

MEUIN Leguminosae Melilotus indica (L.) All.

sweetclover, tall yellow

MEUAT Leguminosae Melilotus altissima Thuill.

sweetclover, white

MEUAL Leguminosae Melilotus alba Medicus

sweetclover, yellow

MEUOF Leguminosae Melilotus officinalis (L.) Lam.

sweetfern COVPE Myricaceae Comptonia peregrina (L.) L.Coult.

sweetflag ACSCA Araceae Acorus calamus L.

sweetgum LIQST Hamamelidaceae Liquidambar styraciflua L.

sweetroot, spreading

OMRCH Umbelliferae Osmorhiza chilensis H. & A.

swinecress COPSQ Cruciferae Coronopus procumbens Gilbert

swordfern, common

NEHEX Dryopteridaceae Nephrolepis exaltata (L.) Schott.

sycamore, common

ACRPP Aceraceae Acer pseudoplatanus L.

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Weed Name

Bayer Code

Family

Genus

Species

tallowtree, Chinese

SAQSE Euphorbiaceae Sapium sebiferum (L.) Roxb.

tamarack LAXLA Pinaceae Larix americana Michx.

tamarisk, Chinese

TAACH Tamariscaceae Tamarix chinensis Lour.

tamarisk, French

TAAGA Tamariscaceae Tamarix gallica L.

tamarisk, athel TAAAP Tamariscaceae Tamarix aphylla (L.) Karsten

tamarisk, smallflower

TAAPA Tamariscaceae Tamarix parviflora DC.

tanoak LIADE Fagaceae Lithocarpus densiflorus

https://www.msu.edu/~zandstra/Complete-Weed-List/Weed-List-QY.htm#top#top�

tansy, common

CHYVU Compositae Tanacetum vulgare L.

tansymustard DESSS Cruciferae Descurainia sp.

tansymustard, Menzies

DESPM Cruciferae Descurainia pinnata ssP. menziesii (DC.) Detl.

tansymustard, Richardson

DESRI Cruciferae Descurainia richardsonii (Sweet) O.E.Schulz

tansymustard, green

DESRB Cruciferae Descurainia pinnata ssp. brachycarpa (Richards.) Detl.

tansymustard, pinnate

DESPI Cruciferae Descurainia pinnata (Walt.) Britt.

tansymustard, western

DESRJ Cruciferae Descurainia richardsonii ssp. incisa (Engelm.) Detl.

tapegrass VAISP Hydrocharitaceae Vallisneria spiralis L.

taro,wild CXSES Araceae Colocasia esculenta (L.) Schott

tarragon ARTDR Compositae Artemisia dracunculus L.

tarweed MADSS Compositae Madia sp.

tarweed, Chilean

MADSC Compositae Madia capitata Nutt.

tarweed, cluster

MADGL Compositae Madia glomerata Hook.

tarweed, coast MADSA Compositae Madia sativa Molina

tarweed, hayfield

HEZCO Compositae Hemizonia congesta DC.

tarweed, palouse

AMSRE Boraginaceae Amsinckia retrorsa Suksd.

tarweed, MADEL Compositae Madia elegans D.Don

showy

tarweed, virgate

HOQVI Compositae Holocarpha virgata (Gray) Keck

tasajillo OPULE Cactaceae Opuntia leptocaulis DC.

tasselflower EMIFO Compositae Emilia fosbergii Nichols./Nilson

tea, Labrador LEDGR Ericaceae Ledum groenlandicum Oeder

tea, New Jersey

CEAAM Rhamnaceae Ceanothus americanus L.

tearthumb, arrowleaf

POLSA Polygonaceae Polygonum sagittatum L.

teasel, common

DIWSI Dipsacaceae Dipsacus fullonum L.

teasel, cutleaf DIWLA Dipsacaceae Dipsacus laciniatus L.

teasel, fullers DIWSA Dipsacaceae Dipsacus sativus (L.) Honckeny

teaweed SIDSP Malvaceae Sida spinosa L.

telegraphplant HTTGR Compositae Heterotheca grandiflora Nutt.

tetterwort CHQMA Papaveraceae Chelidonium majus L.

texasweed CNPPA Euphorbiaceae Caperonia palustris (L.) St. Hil.

thimbleberry, western

RUBPA Rosaceae Rubus parviflorus Nutt.

thistle CIRSS Compositae Cirsium sp.

thistle, Canada CIRAR Compositae Cirsium arvense (L.) Scop.

thistle, Flodman

CIRFL Compositae Cirsium flodmanii (Rydb.) Arthur

thistle, Indian CIRED Compositae Cirsium edule Nutt

thistle, Italian CRUPY Compositae Carduus pycnocephalus L.

thistle, Russian

SASKR Chenopodiaceae Salsola iberica Sennen & Pau

thistle, Scotch ONRAC Compositae Onopordum acanthium L.

thistle, barbwire Russian

SASPA Chenopodiaceae Salsola paulsenii Litv.

thistle, blessed CXDBE Compositae Cnicus benedictus L.

thistle, bull CIRVU Compositae Cirsium vulgare (Savi) Tenore

thistle, distaff CAULA Compositae Carthamus lanatus L.

thistle, field CIRDI Compositae Cirsium discolor (Muhl. ex Willd.) Spreng.

thistle, holy SLYMA Compositae Silybum marianum (L.) Gaertn.

thistle, leafy CIRFO Compositae Cirsium foliosum (Hook.) DC.

thistle, marsh CIRPA Compositae Cirsium palustre (L.) Scop.

thistle, musk CRUNU Compositae Carduus nutans L.

thistle, pasture CIRPU Compositae Cirsium pumilum (Nutt.) Spreng.

thistle, plumeless

CRUAC Compositae Carduus acanthoides L.

thistle, slenderflower

CRUTE Compositae Carduus tenuiflorus W.Curtis

thistle, tall CIRAL Compositae Cirsium altissimum (L.) Spreng.

thistle, wavyleaf

CIRUN Compositae Cirsium undulatum (Nutt.) Spreng.

thistle, welted CRUCR Compositae Carduus crisPus L.

thistle, western

CIROC Compositae Cirsium occidentale (Nutt.) Jeps.

thistle, yellow CIRHO Compositae Cirsium horrldulum Michx.

thistle, yellowspine

CIROH Compositae Cirsium ochrocentrum Gray

thoroughwort, white

EUPAL Compositae Eupatorium album L.

threeawn, arrowfeather

ARKPU Gramineae Aristida purpurascens poir.

threeawn, prairie

ARKOL Gramineae Aristida oligantha Michx.

threeawn, red ARKLS Gramineae Aristida longiseta Steud.

threeawn, reverchon

ARKGL Gramineae Aristida glauca (Nees) Walp.

threeawn, sixweeks

ARKAD Gramineae Aristida adscensionis L.

threesquare, Olney

SCPOL Cyperaceae Scirpus olneyi Gray

threesquare, common

SCPAM Cyperaceae Scirpus americanus Pers.

tickclover, hoary

DEDCN Leguminosae Desmodium canescens (L.) DC.

tickclover, sessile

DEDSF Leguminosae Desmodium sessilifolium (Torr.) T. & G.

tickseed, hyssopleaf

CRQHY Chenopodiaceae Corispermum hyssopifolium L.

tidestromia, woolly

TIDLA Amaranthaceae Tidestromia lanuginosa (Nutt.) Standl.

timothy PHLPR Gramineae Phleum pratense L.

toadflax LINSS Scrophulariaceae Linaria sp.

toadflax, Dalmatian

LINDA Scrophulariaceae Linaria genistifolia ssP. dalmatica (L.) Maire&Petitmengin

toadflax, Florida

LINFL Scrophulariaceae Linaria floridana Chapm.

toadflax, Texas

LINTX Scrophulariaceae Linaria texana Scheele

toadflax, oldfield

LINCA Scrophulariaceae Linaria canadensis (L.) Dumont

toadflax, striped

LINRP Scrophulariaceae Linaria repens (L.) Mill.

toadflax, yellow

LINVU Scrophulariaceae Linaria vulgaris Mill.

tobacco, desert NIOTR Solanaceae Nicotiana trigonophylla Dunal

tobacco, tree NIOGL Solanaceae Nicotiana glauca Graham

tobosagrass HILMU Gramineae Hilaria mutica (Buckl.) Benth.

toothcup ROTRA Lythraceae Rotala ramosior (L.) Koehne

toothcup, Indian

ROTIN Lythraceae Rotala indica (Willd.) Koehne

torpedograss PANRE Gramineae Panicum repens L.

toyon HTEAR Rosaceae Heteromeles arbutifolia (Aiton) M.Roemer

tree-of-heaven AILAL Simaroubaceae Ailanthus peregrina Barkl.

trefoil, birdsfoot

LOTCO Leguminosae Lotus corniculatus L.

trema, Florida TREMI Ulmaceae Trema micrantha (L.) Blume

trumpetcreeper CMIRA Bignoniaceae Campsis radicans (L.) Seem.

ex Bureau

trumpetflower TECST Bignoniaceae Tecoma stans (L.) Juss. ex H.B.K.

tumblegrass SCEPA Gramineae Schedonnardus paniculatus (Nutt.) Trel.

turnip, wild BRSRA Cruciferae Brassica asperifolia Lam.

turnipweed RASRU Cruciferae Rapistrum rugosum (L.) All.

tussock, serrated

STDTR Gramineae Nassella trichotoma (Nees) Hack.

Top

Weed Name

Bayer Name

Family

Genus

Species

umbrellagrass, dwarf

FUIPU Cyperaceae Fuirena pumila (Torr.) Spreng.

umbrellagrass, shortbristle

FUIBR Cyperaceae Fuirena breviseta (Coville) Coville

umbrellagrass, squarrose

FUISQ Cyperaceae Fuirena squarrosa Michx.

umbrellagrass, unbranched

FUISI Cyperaceae Fuirena simplex Vahl

umbrellaplant, smallflower

CYPDI Cyperaceae Cyperus complanatus Forssk.

unicorn-plant PROLO Martyniaceae Martynia louisianica (Mill.)

urochloa, garden

UROPA Gramineae Urochloa panicoides Beauv.

top

Weed Name

Bayer Code

Family

Genus

Species

https://www.msu.edu/~zandstra/Crop-Chem/Crop-Chem-List-A-Z/#top�https://www.msu.edu/~zandstra/Complete-Weed-List/Weed-List-QY.htm#top#top�

valerian, common VALOF Valerianaceae Valeriana officinalis L.

vaseygrass PASUR Gramineae Paspalum urvillei Steud.

velvetgrass, German

HOLMO Gramineae Holcus mollis L.

velvetgrass, common

HOLLA Gramineae Holcus lanatus L.

velvetleaf ABUTH Malvaceae Abutilon theophrasti Medicus

ventenata VETDU Gramineae Ventenata dubia (Leers) Coss. in Dur.

venuslookingglass, common

TJDPE Campanulaceae Triodanis perfoliata (L.) Nieuwl.

venuslookingglass, small

TJDBI Campanulaceae Triodanis biflora (R. & P.) Greene

vernalgrass, sweet AOXOD Gramineae Anthoxanthum odoratum L.

vervain, Brazil VEBBS Verbenaceae Verbena brasiliensis Vell.

vervain, European VEBOF Verbenaceae Verbena officinalis L.

vervain, Jamaica STCJA Verbenaceae Stachytarpheta jamaicensis (L.) Vahl

vervain, blue VEBHA Verbenaceae Verbena hastata L.

vervain, hoary VEBST Verbenaceae Verbena stricta Vent.

vervain, mint VEBME Verbenaceae Verbena menthifolia Benth.

vervain, moss VEBTE Verbenaceae Verbena tenuisecta Briq.

vervain, prostrate VEBBR Verbenaceae Verbena bracteata Lag. & Rodr.

vervain, rose VEBCD Verbenaceae Verbena canadensis (L.) Britt.

vervain, seashore VEBLI Verbenaceae Verbena litoralis H.B.K.

vervain, tall VEBBO Verbenaceae Verbena bonariensis L.

vervain, white VEBUR Verbenaceae Verbena urticifolia L.

vervains VEBSS Verbenaceae Verbena sp.

vetch, bird VICCR Leguminosae Vicia cracca L.

vetch, common VICSA Leguminosae Vicia sativa L.

vetch, hairy VICVI Leguminosae Vicia villosa Roth

vetch, hedge VICSE Leguminosae Vicia sepium L.

vetch, narrowleaf VICAN Leguminosae Vicia angustifolia L.

vetch, sand VICAC Leguminosae Vicia acutifolia Ell.

vetch, sparrow VICTE Leguminosae Vicia tetrasperma (L.) Schreb.

vetch, tiny VICHI Leguminosae Vicia hirsuta (L.) S.F.Gray

vetch, winter VICVV Leguminosae Vicia villosa ssp. varia (Host) Corb.

vetches VICSS Leguminosae Vicia sp.

viburnum, sweet VIBCS Caprifoliaceae Viburnum cassinoides L.

viburnum, sweet VIBLE Caprifoliaceae Viburnum lentago L.

vinegarweed TRMLA Labiatae Trichostema lanceolatum Benth.

violet, English VIOOD Violaceae Viola odorata L.

violet, common blue

VIOPP Violaceae Viola papilionacea Pursh

violet, field VIOAR Violaceae Viola arvensis Murr.

violet, lanceleaf VIOLA Violaceae Viola lanceolata L.

violet, wild VIOSS Violaceae Viola sp.

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Weed Name

Bayer Code

Family

Genus

Species

wahoo, eastern EUOAT Celastraceae Euonymus latifolius Marshall non Miller

wallflower ERYSS Cruciferae Erysimum sp.

wallflower, bushy ERYRE Cruciferae Erysimum repandum L.

wallflower, tall wormseed

ERYHI Cruciferae Erysimum hieraciifolium L.

wallflower, tall wormseed

ERYHI Cruciferae Erysimum strictum Gaertn., Mey. & Scherb.

wallflower, western ERYAS Cruciferae Erysimum asperum (Nutt.) DC.

walnut IUGSS Juglandaceae Juglans sp.

waltheria, Florida WALAM

Sterculiaceae Waltheria americana L.

waltheria, Indian WALAM

Sterculiaceae Waltheria indica L.

wanderingjew, green TRAAL Commelinaceae Tradescantia albiflora Kunth

water-bent POHVI Gramineae Polypogon semiverticillatus (Forsk.) Hyl.

water-thyme HYLLI Hydrocharitaceae

Hydrilla verticillata (L. f.) Royle

waterbuttercup, white

RANTR Ranunculaceae Ranunculus aquatilis L. var. capillaceus

https://www.msu.edu/~zandstra/Complete-Weed-List/Weed-List-QY.htm#top#top�

(Thuill.) DC.

waterbuttercup, yellow

RANFB Ranunculaceae Ranunculus flabellaris Raf.

watercress NAAOF Cruciferae Nasturtium officinale R.Br.

watergrass ECHSS Gramineae many many

watergrass, early ECHOR Gramineae Echinochloa crus-galli (L.) P.B. var. oryzoides (Vas.) Ohwi

watergrass, late ECHOR Gramineae Echinochloa oryzoides (Ard.) Fritsch

watergrass, southern HYFCA Gramineae Hydrochloa caroliniensis P. Beauv. HYFCA

waterhemlock CIUSS Umbelliferae Cicuta sp.

waterhemlock, spotted

CIUMC Umbelliferae Cicuta maculata L.

waterhemlock, western

CIUDO Umbelliferae Cicuta douglasii (DC.) Coult. & Rose

waterhemp, common AMATA Amaranthaceae Amaranthus rudis Sauer

waterhemp, tall AMATU Amaranthaceae Amaranthus tuberculatus (Moq.) J.D.Sauer

waterhyacinth EICCR Pontederiaceae Eichhornia crassipes (Mart.) Solms

waterhyacinth, anchored

EICAZ Pontederiaceae Eichhornia azurea (Sw.) Kunth

waterhyssop BAOSS Scrophulariaceae Bacopa sp.

waterhyssop, Carolina

BAOCA Scrophulariaceae Bacopa caroliniana (Walt.) B.L.Robins.

waterhyssop, Eisen BAOEI Scrophulariaceae Bacopa eisenii (Kell.)

Pennell

waterhyssop, Monnier

BAOMO Scrophulariaceae Bacopa monnieri (L.) Pennell

waterhyssop, disc BAORO Scrophulariaceae Bacopa rotundifolia (Michx.) Wettst.

waterhyssop, nameless

BAOIN Scrophulariaceae Bacopa innominata (Gomez Maza) Alain

waterlettuce PIIST Araceae Pistia stratiotes L.

waterlily, Fenzel NYMBF Nymphaeaceae Nymphaea blanda G.F.W.Mey. var. fenzliama (Lehm.) Caspary

waterlily, Mexican NYMME Nymphaeaceae Nymphaea mexicana Zucc.

waterlily, blue NYNEL Nymphaeaceae Nymphaea elegans Hook.

waterlily, cape blue NYMCP Nymphaeaceae Nymphaea capensis Thunb.

waterlily, fragrant NYMOR Nymphaeaceae Nymphaea odorata Ait.

waterlily, large NYMAM

Nymphaeaceae Nymphaea ampla (Salisb.) DC.

waterlily, magnolia NYMTU Nymphaeaceae Nymphaea tuberosa Paine

waterlily, yellow NUPLU Nymphaeaceae Nuphar luteum (L.) Sibth. & Sm.

watermeal, common WOLCO Lemnaceae Wolffia columbiana Karst.

watermeal, pimpled WOLPA Lemnaceae Wolffia papulifera C.H.Thomps.

watermeal, spotted WOLPU Lemnaceae Wolffia punctata Griseb.

watermelon CITLA Cucurbitaceae Citrullus lanatus (Thunb.)

Matsum. & Nakai

watermilfoil, Eurasian

MYPSP Haloragaceae Myriophyllum spicatum L.

watermilfoil, eastern MYPPI Haloragaceae Myriophyllum pinnatum (Walt.) B.S.P.

watermilfoil, lax MYPLA Haloragaceae Myriophyllum laxum Shuttlew. ex Chapman

watermilfoil,northern

MYPSE Haloragaceae Myriophyllum exalbescens Fern.

watermilfoil, variable

MYPHE Haloragaceae Myriophyllum heterophyllum Michx.

watermilfoil, whorled

MYPVE Haloragaceae Myriophyllum verticillatum L.

waterparsnip SIUSU Umbelliferae Sium suave Walt.

waterplantain, common

ALSPA Alismataceae Alisma plantago-aquatica L.

waterplantain, lanceleaved

ALSLA Alismataceae Alisma lanceolatum With.

waterplantain, narrowleaf

ALSGR Alismataceae Alisma gramineum J.C.Gmel.

waterpod ELSNY Hydrophyllaceae Ellisia nyctelea L.

waterprimrose LUDSS Onagraceae Ludwigia sp.

waterprimrose, Uruguay

LUDUR Onagraceae Ludwigia uruguayensis (Camb.) Hara

waterprimrose, bushy

LUDAL Onagraceae Ludwigia alternifolia L.

waterprimrose, creeping

LUDPE Onagraceae Ludwigia peploides (H.B.K.) Raven

waterprimrose, floating

LUDRE Onagraceae Ludwigia repens Forst.

waterprimrose, winged

IUSDE Onagraceae Ludwigia decurrens Walt.

waterpurslane PPLPO Lythraceae Peplis portula L.

watershield BRESS Cabombaceae Brasenia sp.

watersprite CESTH Parkeriaceae Ceratopteris thalictroides (L.) Brongn.

waterstargrass HETDU Pontederiaceae Heteranthera dubia (Jacq.) Macm.

waterstarwort CLTPA Callitrichaceae Callitriche verna L.

waterstarwort, European

CLTST Callitrichaceae Callitriche stagnalis Scop.

waterwillow, American

IUIAM Acanthaceae Justicia americana (L.) Vahl

waterwort ELTTR Elatinaceae Elatine triandra Schkuhr

waterwort, small ELTMI Elatinaceae Elatine minima (Nutt.) Fisch. & Mey.

waxmyrtle, southern MYRCE Myricaceae Myrica cerifera L.

wedelia, trailing WEDTR Compositae Wedelia trilobata (L.) Hitchc.

wedgescale grass, prairie

SFPOB Gramineae Sphenopholis obtusata (Michx.) Scribn.

wheat (volunteer) TRZSS Gramineae Triticum aestivum L.

wheatgrass, bluebunch

AGRSP Gramineae Agropyron spicatum (Pursh) Scribn. & Sm.

wheatgrass, crested AGRCR Gramineae Agropyron cristatum (L.) Gaertn.

wheatgrass, intermediate

AGRIT Gramineae Agropyron intermedium (Host) P.

Beauv.

wheatgrass, pubescent

AGRTP Gramineae Agropyron tricophorum (Link) Richt.

wheatgrass, slender AGRTR Gramineae Elymus trachycaulus (Link) Gould ex Shinners

wheatgrass, tall AGREL Gramineae Elytrigia elongata (Host) Nevski

wheatgrass, western AGRSM Gramineae Agropyron tsukushiense (Honda) Ohwi var. transiens (Hack.) Ohwi

whitebrush, Texas ALYLY Verbenaceae Aloysia lycioides Cham.

whitetop CADSS Cruciferae Cardaria sp.

whitetop, hairy CADPU Cruciferae Cardaria pubescens (C.A.Mey.) Jarmolenko

whitetop, lens-podded

CADDC Cruciferae Cardaria chalepensis (L.) Hand.-Mazz.

whitlowgrass, spring ERPVE Cruciferae Draba verna L.

whitlowgrass, wood DRBNE Cruciferae Draba nemorosa L.

wildbean, smoothseed

SRTLE Leguminosae Strophostyles leiosperma (T. & G.) Piper

wildbean, trailing SRTHE Leguminosae Strophostyles helvula (L.) Ell.

wildcucumber, western

ECNOR Cucurbitaceae Marah oreganus (T. & G.) T.J.Howell

wildindigo, yellow BAPTI Leguminosae Baptisia tinctoria (L.) R.Br.

wildrice, interior ZIZAI Gramineae Zizania aquatica L. var. interior

wildrose ROSSS Rosaceae Rosa sp.

wildrye ELYSS Gramineae Elymus sp.

wildrye, Virginia ELYVI Gramineae Elymus virginicus L.

willow SAXSS Salicaceae Salix sp.

willow, Florida SAXFL Salicaceae Salix floridana Chapman

willow, black SAXNI Salicaceae Salix nigra Marsh.

willow, coastal plain SAXCR Salicaceae Salix caroliniana Michx.

willow, coyote SAXEX Salicaceae Salix exigua Nutt.

willow, crack SAXFR Salicaceae Salix fragilis L.

willow, goat SAXCP Salicaceae Salix caprea L.

willow, laurel SAXPE Salicaceae Salix pentandra L.

willow, longfruited primrose

LUDOC Onagraceae Ludwigia octovalvis (Jacq.) Raven

willow, prairie SAXHM Salicaceae Salix humilis Marsh.

willow, primrose LUDPV Onagraceae Ludwigia peruviana (L.) Hara

willow, sandbar SAXIN Salicaceae Salix interior Rowles

willow, silky SAXSE Salicaceae Salix sericea Marsh.

willow, weeping SAXBA Salicaceae Salix babylonica L.

willow, white SAXAL Salicaceae Salix alba L.

willowweed, American

EPIAC Onagraceae Epilobium adenocaulon Hausskn.

willowweed, Arctic EPIDA Onagraceae Epilobium davuricum Fisch.

willowweed, hairy EPIHI Onagraceae Epilobium hirsutum L.

willowweed, panicle EPIPC Onagraceae Epilobium paniculatum

Nutt. ex T. & G.

windgrass APEIN Poaceae Apera interrupta (L.) P.Beauv.

windmillgrass, tumble

CHRVE Gramineae Chloris verticillata Nutt.

winklegrass ISCRU Gramineae Ischaemum rugosum Salisb.

wintergreen, aromatic

GAHPR Ericaceae Gaultheria procumbens L.

wintergreen, round-leaved

PYWRO Pyrolaceae Pyrola rotundifolia L.

wiregrass ELEIN Gramineae Eleusine indica (L.) Gaertn.

wirelettuce, desert STOPA Compositae Stephanomeria

pauciflora (Torr.) Nutt.

wirelettuce, slender STOTE Compositae Stephanomeria

tenuifolia (Torr.) Hall

witchgrass PANCA Gramineae Panicum brevifolium (Link) Kunth

witchweed STRLU Scrophulariaceae Striga asiatica (L.) Ktze.

witchweed, cowpea STRGE Scrophulariaceae Striga gesnerioides (Willd.) Vatke

woad, dyers ISATI Cruciferae Isatis tinctoria L.

wolfberry, Berlandier

LYUBE Solanaceae Lycium berlandieri Dunal

woodrush, common LUUMU Juncaceae Luzula campestris (L.) DC. ssp. multiflora

woodsorrel OXASS Oxalidaceae Oxalis sp.

woodsorrel, European

OXAEU Oxalidaceae Oxalis europaea Jordan

woodsorrel, Florida yellow

OXAFL Oxalidaceae Oxalis florida Salisb.

woodsorrel, creeping OXACO Oxalidaceae Oxalis corniculata L.

woodsorrel, violet OXACB Oxalidaceae Oxalis corymbosa DC.

woodsorrel, yellow OXAST Oxalidaceae Oxalis stricta L.

woolgrass ANZPU Gramineae Anthephora hochstetteri Nees ex Hochst.

wormwood ARTSS Compositae Artemisia sp.

wormwood, Louisiana

ARTLU Compositae Artemisia ludoviciana Nutt.

wormwood, absinth ARTAB Compositae Artemisia absinthium L.

wormwood, annual ARTAN Compositae Artemisia annua L.

wormwood, beach ARTST Compositae Artemisia stelleriana Bess.

wormwood, biennial ARTBI Compositae Artemisia biennis Willd.

wormwood, southern

ARTAT Compositae Artemisia abrotanum L.

woundwort, marsh STAPA Labiatae Stachys palustris L.

top

Weed Name

Bayer Code

Family

Genus

Species

yankeeweed EUPCO Compositae Eupatorium compositifolium Walt.

yarrow, common

ACHMI Compositae Achillea millefolium L.

yarrow, sneezewort

ACHPT Compositae Achillea ptarmica L.

yarrow, ACHLA Compositae Achillea lanulosa Nutt.

https://www.msu.edu/~zandstra/Complete-Weed-List/Weed-List-QY.htm#top#top�

western

yaupon ILEVO Aquifoliaceae Ilex vomitoria Ait.

yaupon, deciduous

ILEDE Aquifoliaceae Ilex decidua Walt.

yellowcress, great

RORAM Cruciferae Rorippa amphibia (L.) Bess.

yellowcress, marsh

RORIS Cruciferae Rorippa islandica (Oeder) Borbas

yellowcress, spreading

RORSN Cruciferae Rorippa sinuata (Nutt.) A.S.Hitchc.

yellowcress, terete

RORTE Cruciferae Rorippa teres (Michx.) Stuckey

yerba mansa

ANFCA Saururaceae Anemopsis californica (Nutt.) H. & A.

yucca UCCSS Agavaceae Yucca sp.

yucca, Great Plains

UCCGC Agavaceae Yucca glauca Nutt. ex Fraser

yucca, soaptree

UCCEL Agavaceae Yucca elata Engelm.