I have no idea what this is, but they're all over the North Campus:
Doesn't seem prickly enough for thistle, and I think the flowers are too flowery. Big, too, from four to six feet tall.
Update: Apparently, it's ironweed. But it still looks pretty.
It looks like a variety of Liatris.
ReplyDeleteIronweed (Vernonia fasciculata). Tall, tenacious and prolific.
ReplyDeletePurdue University seems to think it's ironweed.
ReplyDeletehttp://www.ppdl.purdue.edu/PPDL/weeklypics/9-22-08.html
I know it as Knapweed, and it's wildly invasive a difficult to kill.
ReplyDeleteJust be careful if they start spewing spoors at you...
ReplyDelete