INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
select
Weeds Resistant to PSII inhibitors - Histidine 215 Binders HRAC Group 6 (Legacy C3)
by species and country
Weeds Resistant to PSII inhibitors - Histidine 215 Binders HRAC Group 6 (Legacy C3)
by species and country
Drag a column header and drop it here to group by that column
Weeds Resistant to PSII inhibitors - Histidine 215 Binders HRAC Group 6 (Legacy C3)
by species and country
#SpeciesCountryFirst Year
1 Amaranthus hybridus (syn: quitensis)
Smooth Pigweed
2004 - Canada (Ontario)
200412Amaranthus hybridus (syn: quitensis)Smooth PigweedC366PSII inhibitors - Histidine 215 Binders
2 Amaranthus retroflexus
Redroot Pigweed
2005 - Canada (Ontario)
200516Amaranthus retroflexusRedroot PigweedC366PSII inhibitors - Histidine 215 Binders
3 Cyperus difformis
Smallflower Umbrella Sedge
2023 - Portugal *Multiple - 2 SOA's
202371Cyperus difformisSmallflower Umbrella SedgeC366PSII inhibitors - Histidine 215 Binders
4 Sagittaria montevidensis
California Arrowhead
2009 - Brazil *Multiple - 2 SOA's
2009146Sagittaria montevidensisCalifornia ArrowheadC366PSII inhibitors - Histidine 215 Binders
5 Senecio vulgaris
Common Groundsel
1995 - United States (Oregon)
1995148Senecio vulgarisCommon GroundselC366PSII inhibitors - Histidine 215 Binders

HRAC Global Heap, I.  The International Herbicide-Resistant Weed Database.  Online.  Tuesday, November 3, 2026.  Available at  www.weedscience.org

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