September gold

Goldenrod blossom in large goldenrod prairie. A grove of trees is in the background

I used to think those huge fields of goldenrod were to blame for the severe seasonal allergies I experience this time of year. I recently learned that goldenrod does not cause allergies. Pollen from the inconspicuously drab ragweed flowers (which appear at the same time) is the culprit.

All those goldenrod blossoms look a little more beautiful to me now.