International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
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This table lists all herbicide resistant weeds by site of action.  Red indicates that the weed species has evolved resistance to the site of action.  If you want to change the headers from HRAC classification to WSSA or Australian classifications then click on the buttons below.
Herbicide Resistance Action Comittee
Global Standard -See Classification Here
Weed Science Society of America
Used in North  America -See Classification Here
Australian Herbicide Groups
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Global Summary
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Herbicide Resistant Weeds by Species and Site of Action
*****HRAC Group Codes*****

Click Headers to Sort Data. Data Current as of : Monday, September 27, 2021
SpeciesTotal ABC1C2DGK1OF2Other
112Lolium rigidum9111114
14Amaranthus palmeri7111112
28Avena fatua711113
81Eleusine indica7111112
130Poa annua7111112
79Echinochloa crus-galli var. crus-galli6111111
110Lolium perenne ssp. multiflorum611112
12Amaranthus hybridus (syn: quitensis)51112
219Amaranthus tuberculatus (=A. rudis)511111
21Arctotheca calendula511111
65Conyza sumatrensis511111
78Echinochloa colona511111
111Lolium perenne51112
141Raphanus raphanistrum511111
30Avena sterilis ssp. ludoviciana41111
97Hordeum murinum ssp. glaucum411110
166Sorghum halepense411110
264Alopecurus aequalis31110
5Alopecurus japonicus31110
6Alopecurus myosuroides31110
16Amaranthus retroflexus312
18Ambrosia artemisiifolia3111
29Avena sterilis3111
32Bidens pilosa31110
36Brassica rapa (=B. campestris)31110
197Bromus diandrus31110
60Conyza bonariensis31110
61Conyza canadensis31110
237Descurainia sophia3111
87Euphorbia heterophylla3111
98Hordeum murinum ssp. leporinum31110
99Ischaemum rugosum31110
101Kochia scoparia31110
102Lactuca serriola31110
327Senecio vernalis312
153Setaria viridis31110
159Sisymbrium orientale3111
164Sonchus oleraceus31110
13Amaranthus blitum (ssp. oleraceus)2110
278Amaranthus spinosus2110
184Ambrosia trifida2110
20Apera spica-venti2110
31Beckmannia syzigachne2110
194Bidens subalternans2110
38Bromus diandrus ssp. rigidus (=B. rigidus)2110
289Bromus sterilis2110
40Bromus tectorum2110
348Carduus acanthoides2110
277Centaurea cyanus2110
47Chenopodium album2110
340Chloris radiata2110
205Cynosurus echinatus2110
239Digitaria insularis2110
177Digitaria ischaemum2110
77Digitaria sanguinalis2110
304Echinochloa crus-galli var. formosensis2110
261Echinochloa oryzoides2110
178Echinochloa phyllopogon (=E. oryzicola)2110
90Fimbristylis miliacea2110
91Galeopsis tetrahit2110
272Galium aparine2110
93Galium spurium2110
310Hedyotis verticillata2110
95Helianthus annuus2110
328Hirschfeldia incana2110
104Limnocharis flava2110
226Limnophila erecta2110
123Papaver rhoeas2110
124Parthenium hysterophorus2110
244Phalaris brachystachys2110
127Phalaris minor2110
128Phalaris paradoxa2110
220Plantago lanceolata2110
140Ranunculus acris2110
265Rottboellia cochinchinensis (=R. exaltata)2110
146Sagittaria montevidensis211
147Salsola tragus2110
148Senecio vulgaris211
149Setaria faberi2110
155Setaria viridis var. major (=var. robusta-alba, var. robustapurpurea)2110
158Sinapis arvensis2110
190Solanum ptycanthum2110
168Stellaria media2110
174Xanthium strumarium211
280Acalypha australis11
319Ageratum conyzoides110
3Agrostis stolonifera11
300Alisma canaliculatum110
4Alisma plantago-aquatica110
9Amaranthus blitoides110
15Amaranthus powellii110
287Amaranthus viridis110
183Ammannia auriculata110
209Ammannia coccinea110
268Anthemis arvensis110
19Anthemis cotula110
213Bacopa rotundifolia110
322Bifora radians110
308Blyxa aubertii110
318Brachiaria eruciformis110
35Brachypodium distachyon110
37Brassica tournefortii110
338Bromus catharticus110
246Bromus japonicus110
352Bromus madritensis110
324Bromus rubens110
245Bromus secalinus110
274Buglossoides arvensis (=Lithospermum arvense)110
207Camelina microcarpa110
41Capsella bursa-pastoris110
42Carduus nutans110
43Carduus pycnocephalus110
44Centaurea solstitialis110
334Centaurea stoebe ssp. micranthos110
332Chamaesyce maculata110
53Chloris barbata = (C. inflate)110
316Chloris elata110
262Chloris truncata110
330Chloris virgata110
228Chrysanthemum coronarium110
55Cirsium arvense110
311Clidemia hirta110
56Commelina diffusa110
312Convolvulus arvensis110
66Crassocephalum crepidioides110
271Crepis tectorum110
68Cuphea carthagenenis110
69Cuscuta pentagona (=C. campestris)110
276Cynodon hirsutus110
303Cyperus brevifolius110
329Cyperus compressus110
71Cyperus difformis110
290Cyperus esculentus110
266Cyperus iria110
317Cyperus odoratus110
74Damasonium minus110
76Daucus carota110
225Digitaria ciliaris110
285Diplotaxis erucoides110
227Diplotaxis tenuifolia110
302Dopatrium junceum110
305Echinochloa crusgalli var. zelayensis110
193Echinochloa crus-pavonis110
236Echinochloa erecta11
186Echium plantagineum110
315Ehrharta longiflora110
210Elatine triandra var. pedicellata110
295Eleocharis acicularis110
82Epilobium ciliatum110
85Erigeron philadelphicus110
176Eriochloa punctata110
286Erucaria hispanica110
247Erysimum repandum110
191Fumaria densiflora110
339Galinsoga parviflora110
306Galium tricornutum110
298Gamochaeta pensylvanica110
217Hydrilla verticillata11
229Iva xanthifolia110
100Ixophorus unisetus110
336Lactuca saligna110
323Lamium amplexicaule110
232Landoltia punctata110
103Lepidium virginicum110
223Leptochloa chinensis110
267Leptochloa panicoides110
270Leptochloa virgata110
105Limnophila sessiliflora110
106Lindernia dubia (=Lindernia dubia var. major)110
108Lindernia micrantha110
109Lindernia procumbens110
341Lithospermum arvense110
181Lolium persicum110
309Ludwigia prostrata110
248Matricaria recutita (= M. chamomilla)110
281Mazus fauriei110
296Mazus pumilus110
234Mesembryanthemum crystallinum110
240Mitracarpus hirtus 110
118Monochoria korsakowii110
202Monochoria vaginalis110
273Myosoton aquaticum110
189Neslia paniculata110
242Oryza sativa var. sylvatica110
335Paspalum paniculatum110
231Pentzia suffruticosa110
314Picris hieracioides110
350Poa trivialis110
131Polygonum aviculare11
88Polygonum convolvulus (=Fallopia convolvulus)110
134Polygonum lapathifolium110
135Polygonum pensylvanicum110
136Polygonum persicaria110
313Polypogon fugax110
224Raphanus sativus110
142Rapistrum rugosum110
282Rorippa indica110
214Rotala indica var. uliginosa110
301Rotala pusilla110
320Rumex dentatus110
349Rumex obtusifolius110
215Sagittaria guyanensis110
230Sagittaria pygmaea110
294Sagittaria trifolia110
307Schoenoplectus fluviatilis110
196Schoenoplectus juncoides110
182Schoenoplectus mucronatus (=Scirpus mucronatus)110
299Schoenoplectus wallichii110
283Sclerochloa dura110
297Sclerochloa kengiana110
351Secale cereale110
150Setaria pumila (=S. glauca)110
157Sida spinosa110
279Silene gallica110
241Sinapis alba110
160Sisymbrium thellungii110
195Snowdenia polystachya110
161Solanum americanum110
162Solanum nigrum110
199Soliva sessilis110
163Sonchus asper110
165Sorghum bicolor110
187Sorghum bicolor ssp. drummondii (=Sorghum sudanese)110
326Spergula arvensis110
167Sphenoclea zeylanica110
204Thlaspi arvense110
333Tridax procumbens110
116Tripleurospermum perforatum (=T. inodorum)110
171Urochloa panicoides110
34Urochloa plantaginea (=Brachiaria plantaginea)110
275Vaccaria hispanica110
321Vicia sativa110
173Vulpia bromoides110
175Youngia japonica110
1Abutilon theophrasti00
7Amaranthus albus00
11Amaranthus cruentus00
292Arabidopsis thaliana00
22Arenaria serpyllifolia00
26Atriplex patula00
33Bidens tripartita00
51Chenopodium album var. striatum (=C. strictum var. glaucophyllum)00
48Chenopodium ficifolium00
50Chenopodium polyspermum00
67Crypsis schoenoides00
75Datura stramonium00
84Epilobium tetragonum00
92Galinsoga ciliata00
291Leptochloa scabra00
115Matricaria discoidea00
169Nassella neesiana00
221Nassella trichotoma00
121Panicum capillare00
122Panicum dichotomiflorum00
129Plantago lagopus00
133Polygonum hydropiper00
137Polypogon monspeliensis00
138Portulaca oleracea00
114Rostraria smyrnacea (=Lophochloa smyrnacea)00
337Rumex acetosella00
152Setaria verticillata00
325Sporobolus fertilis00
222Urtica urens00
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Monday, September 27, 2021 .  Available  www.weedscience.org
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