Canada thistle

(redirected from Cirsium arvense)
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Related to Cirsium arvense: creeping thistle

Canada thistle:

see thistlethistle,
popular name for many spiny and usually weedy plants, but especially applied to members of the family Asteraceae (aster family) that have spiny leaves and often showy heads of purple, rose, white, or yellow flowers followed by thistledown seeds (a favorite food of the
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References in periodicals archive ?
opulus Well-Established DWF, MHF Herb Layer Alliaria petiolata Targeted DWF Cirsium arvense Well-Established EM, DWF Conium maculatum Well-Established MHF Coronilla varies Well-Established EM Daucus carota Well-Established EM, DSS, DWF Dipsacus fullonum L.
Cirsium arvense (Canada thistle) is an exotic species that frequently occurred along horse trails, foot trails, and roadways.
Phyllostictines A-D oxazatricycloalkenones produced by Phyllosticta cirsii a potential mycoherbicide for Cirsium arvense biocontrol.
3, Cirsium arvense +, Bromus tectorum +, Stellaria media +, Bromus ramosus +, Carex muricata +.
Exotic herbaceous plants common to abundant in this field include Alliaria petiolata, Allium vineale, Artemisia vulgaris, Barbarea vulgaris, Brassica nigra, Cirsium arvense, C.
Androsace septentrionalis, Cirsium arvense, Potentilla arguta and Symphyotrichum laeve all positively correlated with axis 3, implying seedlings of these forbs decreased through time after applying burning treatments.
Wild grape 35 Toxicodendron radicans Poison ivy 36 Apocynum androsaemifolium Dogbane 37 Solidago rigida Stiff goldenrod 38 Rhamnus cathartica Common buckthorn* 39 Cirsium arvense Canada thistle * 40 Malus spp.