New England Aster
Symphyotrichum novae-angliae
Notes:

From what I've read, Asters are one of the best caterpillar host plants. The adult pollinators also like them.

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I think the environment should be put in the category of our national security. Defense of our resources is just as important as defense abroad. Otherwise what is there to defend?
Robert Redford
Yosemite National Park dedication, 1985