carduus pycnocephalus from the common name italian thistle

asteraceae background beautiful beauty bloom blossom botany carduus closeup environment fallopia field flora floral flower garden green herb inflorescence italian japanese japonica knotweed leaf macro meadow nature outdoor perennial pink plant purple pycnocephalus reynoutria season sharp shrub spiny spring springtime stem summer thistle thorn uncultivated weed white wild wildflower wildlife