mugwort pollen.
Artemisia vulgaris · Weed
A late-summer weed pollen and a relative of ragweed.
Usual season in the US
July to September
Typical months; the stronger marks are the usual peak. Seasons shift with region, weather and year.
Where it grows
Mugwort grows along roadsides and in disturbed ground, mostly in the East and Midwest.
Good to know
Mugwort flowers just before ragweed and belongs to the same family, the daisies.
In Sneezecast
Google’s pollen forecast doesn’t list mugwort for the United States today, and Sneezecast forecasts only the US for now. The app still has its drawing, so every plant the forecast can name has a picture.
Ragweed