Canada Thistle


Plant Bio

Common Name:Canada thistle
Classification/Rank:Very Invasive
Method of Transportation:A single seedling can produce a large patch through vegetative propagation
Habitat/Range:Mesic to dry roadsides, fields and disturbed areas in the lowland, steppe and montane zones


• biennial herb that grows 0.3 to 2.0 m tall • stems are erect, branched, and hairy •leaves are irregularly toothed, alternate, lance shaped on the lower stem becoming broader upwards, spiny toothed, smooth and green above, densely white hairy below • flowers are pink-purple


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