Weed Targets

Plant with purple flowers
bull thistle (Cirsium vulgare)
Plant with small purple flowers
Italian thistle (Carduus pycnocephalus)
Plant with purple flowers
musk thistle (Carduus nutans)
Plants with purple flowers
plumeless thistle (Carduus acanthoides)
Plant with small white to purple flowers
slenderflower thistle (Carduus tenuiflorus)
Plant with purple flower
milk thistle (Silybum marianum)
Plant with purple flowers
Canada thistle (Cirsium arvense)
Plant with purple flowers and a hairy stem
marsh thistle (Cirsium palustre)