DC
09/06/2012 12:22 pm ET

Late Summer Wildflowers: Aggressive, Tasty, Sometimes Deadly

Patch/Roger Hamilton

We adore the wildflowers that pop up along the Potomac in early spring―so pretty, so shy, so delicate. Now it’s late summer, and a completely different gang has moved into the neighborhood.

These are the tough guys of the plant world. Some are real bruisers, forming thickets 10 feet tall that make the going tough, even with a machete. Others are aggressive, stinging exposed skin or sending forth clouds of nasty pollen. At least one can even kill you.

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