According to observations of naturalists and beekeepers.
Where are you?
This plant is present in at least 13 states/provinces in this country.
Sinapis arvensis (aka: Charlock mustard, California rape, Charlock, Corn mustard, Canola, Kaber mustard, Rapeseed mustard)
Borago officinalis (aka: Borage, Starflower, Common borage, Cool-tankard, Tailwort)
Calluna vulgaris (aka: Heather, Scotch heather, Common heather, Ling, Simply heather)
Asteraceae (aka: Aster, Daisy, Composite)