Canada

Canada thistle (creeping thistle)

Cirsium arvense

Perennial weed with deep taproot and deep-set, initially perpendicularly-running root stolons that later bend downward geniculately, non-lacteal.
C. arvense likes nitrogen and has a very high phenotypic variability with different subspecies.

Prickly leaves, lilac florets.

Cotyledons: Wide oval, fleshy, dark green, entire, hardly petiolate, prostrate.

Stems: Erect, ramified, spineless, nearly hairless, angularly furrowed, up to 150 cm (59.05 inch) high.

Leaves: First leaves inverse-ovate, following leaves lanceolate, simple to pinnatifid, wavy-ruffled, sessile. Leaf margin with soft to hard spines.

Pesticides
Accurate
intensity: ★★★
Albaugh 2,4-D Amine 600 Liquid
intensity: ★★★
Banvel Dry Eg
intensity: ★★★
Basagran Liquid
intensity: ★★★
Callisto GT
intensity: ★★★
Cheminova Glyphosate
intensity: ★★★
Cheminova Glyphosate II
intensity: ★★★
Clearout 41 Plus
intensity: ★★★
Credit Plus
intensity: ★★★
Cycle
intensity: ★★★
Depose
intensity: ★★★
Distinct
intensity: ★★★
Durango
intensity: ★★★
Flaxmax
intensity: ★★★
Flexstar GT
intensity: ★★★
GF-2018
intensity: ★★★
GF-772
intensity: ★★★
Glyfo Silvi
intensity: ★★★
Glyfos Bio
intensity: ★★★
Glyfos Bio 450
intensity: ★★★
Glyfos Soluble Concentrate
intensity: ★★★
Glyfos Soluble Concentrate II
intensity: ★★★
Glyphos AU Soluble Concentrate
intensity: ★★★
Glyphosate 480
intensity: ★★★
Glyphosate-Trimesium 480
intensity: ★★★
Grazon
intensity: ★★★
Grazon XC
intensity: ★★★
Halex GT
intensity: ★★★
Impede
intensity: ★★★
Marksman
intensity: ★★★
Maverick II
intensity: ★★★
MON 76429 Liquid
intensity: ★★★
MON 76431 Liquid
intensity: ★★★
MON 76669 Liquid
intensity: ★★★
MON 79791 Liquid
intensity: ★★★
MON 79828 Liquid
intensity: ★★★
Navius
intensity: ★★★
Navius VM
intensity: ★★★
Powermax Liquid
intensity: ★★★
Pyralid
intensity: ★★★
R/T 540 Liquid
intensity: ★★★
Renegade HC Liquid
intensity: ★★★
Restore B
intensity: ★★★
Restore II
intensity: ★★★
Roundup Transorb HC Liquid
intensity: ★★★
Roundup Transorb Liquid
intensity: ★★★
Roundup Transorb Max Liquid
intensity: ★★★
Roundup Ultra 2 Liquid
intensity: ★★★
Roundup Ultra Liquid
intensity: ★★★
Roundup WeatherMAX With Transorb 2 Technology Liquid
intensity: ★★★
Roundup Xtend with VaporGrip Technology
intensity: ★★★
Salute A
intensity: ★★★
Salute AQ
intensity: ★★★
Spectrum A
intensity: ★★★
Spectrum B
intensity: ★★★
StartUp
intensity: ★★★
Tordon 22K
intensity: ★★★
Touchdown 480 Liquid
intensity: ★★★
Touchdown IQ
intensity: ★★★
Touchdown Total
intensity: ★★★
Traxion
intensity: ★★★
Tropotox Plus 400
intensity: ★★★
Truvist
intensity: ★★★
Vanquish
intensity: ★★★
Vision Silviculture
intensity: ★★★
VisionMAX
intensity: ★★★
XtendiMax with VaporGrip Technology
intensity: ★★★
Accurate WSB
intensity: ★★
Embutox
intensity: ★★
Enforcer D
intensity: ★★
Enforcer M
intensity: ★★
GF-2654 TC
intensity: ★★
GF-2654 TSOY
intensity: ★★
GF-2726 TSOY
intensity: ★★
MCPA 2 EH Ester 600
intensity: ★★
MCPA Amine
intensity: ★★
MCPA DMA 500
intensity: ★★
MCPA Ester 500
intensity: ★★
MCPA Ester 500 LV
intensity: ★★
MCPA Ester 600
intensity: ★★
Nimble
intensity: ★★
Nimble WSB
intensity: ★★
PSABRY
intensity: ★★
Pyroxsulam
intensity: ★★
RRRPSABRY
intensity: ★★
Sportcoat
intensity: ★★
Tandem GoDRI A
intensity: ★★
Target
intensity: ★★
Velocity 2
intensity: ★★
2,4-D Amine 500
intensity: ★
2,4-D BEE-4
intensity: ★
2,4-D Ester 700
intensity: ★
2,4- D Ester 700
intensity: ★
2,4-D LV-600
intensity: ★
2,4-D LV-700
intensity: ★
A.H. Marks MCPP-P 600
intensity: ★
Adrenalin SC
intensity: ★
Agri Star MCPA DMA 500
intensity: ★
Ally 20 SG
intensity: ★
Ally Herbicide Dry Flowable 60
intensity: ★
Ally Herbicide Toss-N-Go
intensity: ★
Arsenal
intensity: ★
Arsenal Powerline
intensity: ★
Attain XC B
intensity: ★
Banvel 483
intensity: ★
Banvel
intensity: ★
Barricade SG
intensity: ★
Blazer
intensity: ★
Buctril M
intensity: ★
Clopyralid
intensity: ★
Compitox
intensity: ★
CS-100-2525
intensity: ★
CS-100-3317
intensity: ★
DB-6654
intensity: ★
DB-8454
intensity: ★
Dicamba L
intensity: ★
Distinct WDG
intensity: ★
Dyvel
intensity: ★
Eclipse III A
intensity: ★
Eclipse III B
intensity: ★
Estaprop XT
intensity: ★
Express PRO
intensity: ★
Formula 40 C
intensity: ★
Frontline 2,4-D XC A
intensity: ★
Frontline 2,4-D XC B
intensity: ★
Frontline A
intensity: ★
Frontline B
intensity: ★
Frontline I
intensity: ★
Frontline XL
intensity: ★
GP
intensity: ★
Harmony Broadleaf
intensity: ★
Infinity
intensity: ★
Liberty 150 SN
intensity: ★
Liberty 200 SN
intensity: ★
Metsulfuron Methyl EUP
intensity: ★
Metsulfuron Methyl EUP Toss-N-Go
intensity: ★
Overdrive
intensity: ★
Paradigm
intensity: ★
Plus M Ester 600
intensity: ★
PP-23235
intensity: ★
PP-2525
intensity: ★
Retain B
intensity: ★
Rexade B
intensity: ★
Simplicity GoDRI
intensity: ★
Stellar B
intensity: ★
Tandem A
intensity: ★
Target DS
intensity: ★
Travallas
intensity: ★
Triton C
intensity: ★
Tundra
intensity: ★
Velocity m3 All-In-One
intensity: ★
Albaugh MCPA Ester 600 Liquid
intensity: N/A
Amitrol 240
intensity: N/A
Attain A
intensity: N/A
Attain B
intensity: N/A
Attain XC A
intensity: N/A
Badge II
intensity: N/A
Banvel VM
intensity: N/A
Banvel VM Pro
intensity: N/A
Boost M
intensity: N/A
Broadband
intensity: N/A
BRY/MAE 2 (A Component of RRR/BRY/MAE Herbicide Tank Mix)
intensity: N/A
Carnival 540
intensity: N/A
Centurion Emulsifiable Concentrate Post-Emergence
intensity: N/A
Clearview
intensity: N/A
Clethodim 360EC
intensity: N/A
Compas 480 EC
intensity: N/A
Credit 360
intensity: N/A
Credit 45
intensity: N/A
Credit Xtreme
intensity: N/A
Crush'R 480
intensity: N/A
Crush'R 540
intensity: N/A
Crush'R Plus
intensity: N/A
Curtail F
intensity: N/A
Curtail M
intensity: N/A
DB-858
intensity: N/A
Deploy 75 DF
intensity: N/A
DPX-MAT 28
intensity: N/A
DPX-R9674 50 SG
intensity: N/A
Dycleer Agricultural
intensity: N/A
Engenia
intensity: N/A
Express DF 75
intensity: N/A
Express LW
intensity: N/A
Express SG
intensity: N/A
Express SG EUP
intensity: N/A
Express Toss-N-Go
intensity: N/A
Express Toss-N-Go Dry Flowable 75
intensity: N/A
Fexapan Plus Vaporgrip Technology
intensity: N/A
FirstStep
intensity: N/A
Flaxmax Herbicide Component of Tank Mix
intensity: N/A
Fluroxypyr 180
intensity: N/A
Fluroxypyr EC
intensity: N/A
Fluroxypyr WDG
intensity: N/A
FX
intensity: N/A
GF-1966
intensity: N/A
GF-871
intensity: N/A
GF2050
intensity: N/A
Glean
intensity: N/A
GlyKamba
intensity: N/A
Inferno WDG
intensity: N/A
Korrex B
intensity: N/A
Liberty 150 SN Herbicide and Crop Desiccant MP
intensity: N/A
Lontrel 360
intensity: N/A
Lontrel 72
intensity: N/A
Lontrel SG
intensity: N/A
Luxxur B
intensity: N/A
M1691
intensity: N/A
M6316 SG
intensity: N/A
Mextrol 450
intensity: N/A
Milestone
intensity: N/A
NC-00439
intensity: N/A
NC-0050
intensity: N/A
Nuance
intensity: N/A
Nuance Pro
intensity: N/A
Nuance WSB
intensity: N/A
Nufarm Boost
intensity: N/A
Nufarm Fluroxypyr
intensity: N/A
Nufarm Glyphosate 360
intensity: N/A
Nufarm Spike 75
intensity: N/A
NuGlo
intensity: N/A
Odyssey NXT
intensity: N/A
Optica Trio
intensity: N/A
Perimeter
intensity: N/A
Perimeter II
intensity: N/A
Polaris
intensity: N/A
PP-2525 Toss-N-Go
intensity: N/A
PP-31155
intensity: N/A
PP-3317
intensity: N/A
PP-Q50-882
intensity: N/A
PP-Q52-105
intensity: N/A
Predicade Broadleaf
intensity: N/A
PrePass 480
intensity: N/A
Prestige A
intensity: N/A
Prestige B
intensity: N/A
Prestige XC A
intensity: N/A
Prestige XC B
intensity: N/A
Prestige XL
intensity: N/A
Prowl H2O
intensity: N/A
Reclaim A
intensity: N/A
Reclaim B
intensity: N/A
Reclaim II A
intensity: N/A
Reclaim II B
intensity: N/A
Refine
intensity: N/A
Refine Extra 75 DF
intensity: N/A
Refine Extra 75 Toss-N-Go
intensity: N/A
Refine SG
intensity: N/A
Refine SG Toss-N-Go
intensity: N/A
Restore A
intensity: N/A
Retain A
intensity: N/A
RRR 1 (A Component of RRR/BRY/MAE Herbicide Tank Mix)
intensity: N/A
Salute B
intensity: N/A
Sightline A
intensity: N/A
Signal F
intensity: N/A
Simplicity
intensity: N/A
Spitfire 50 SC
intensity: N/A
Tordon 202C
intensity: N/A
Traxos Two Broadleaf Component
intensity: N/A
Tribenuron Methyl EUP DF 75
intensity: N/A
Triton Broadleaf
intensity: N/A
Triton C 75 DF
intensity: N/A
Vantage
intensity: N/A
Vantage MAX
intensity: N/A
Vantage Plus
intensity: N/A
Vantage Plus MAX
intensity: N/A
Velocity A (A Component of Velocity M3 Herbicide Tank Mix)
intensity: N/A
Velocity B (A Component of Velocity M3 Herbicide Tank Mix)
intensity: N/A
VP480
intensity: N/A
XRM-5171
intensity: N/A