One year an individual told me he had weeds that looked like Shasta Daisies. He inquired if he should pull the weeds. I thought that with "weeds" being described as Shasta Daisy leaves something was too accurate. I told him not to pull anything. Eventually I looked at the "weeds". They were Shasta Daisies.
Leucanthemum vulgare (oxeye daisy) is the wild growing one on most invasive lists. But the Leucanthemum × superbum (Shasta Daisy) is a developed garden perennial.