Ironweed (Vernonia sp.) in Bloom, Showing Leaf Borer Damage
Sep 18th, 2013, by Alex Zorach
This photo shows ironweed (Vernonia sp.) in bloom; I love this plant for its striking purple flowers, a really intense color, that bloom in late summer and early fall.
I photographed this specimen at Bartram's garden in Philadelphia, in a low-lying shady area near the river.