The bane of allergy-sufferers everywhere, Common Ragweed is wind-pollinated: instead of large attractive flower heads, it relies on myriad small pollen-dispensers. The plant in full bloom passes nearly unnoticed, even in large drifts. These plants were growing in the Seldom Seen Greenway, where they were in bloom in the middle of August.
One response to “Ragweed (Ambrosia artemisiifolia)”
[…] for hay fever, but this huge yet somehow inconspicuous weed, and its even more common little cousin A. artemisiifolia, are the real culprits. These plants appear to be what Gray describes as the variety integrifolia: […]