This Yellow-faced Bumblebee is feeding from the flowerhead of a Canada Thistle, Cirsium arvense. This is a highly invasive (and prickly) weed that spreads by windblown seeds and root generation. It is widespread in North America.
It is originally from continental Europe, and arrived in North America with early European immigrants. Early New Englanders blamed its appearance on French Canadians, hence the name, but it found its way to the continent a number of times, here, there, and everywhere.