A friend took a photo of a plant in IN. I hope someone recognized what it is.

At first I thought of Tall Verbena (Verbena bonariensis) but I don't think that's right and I don't really have a clue. It sure is pretty whatever it is and I hope someone comes along with an ID real soon because I'm very curious ... gorgeous photo!

Given the time of year and the colour, I'm wondering about Caryopteris.

Or maybe scabiosa.

I was thinking Caryopteris but just doesn't quite look like it. Just not sure. Leaves seem similar.

Check out Pycnanthemum.
There are a few similar looking ones, like Pycnanthemum tenuifolium, Pycnanthemum virginianum, etc.

Arlene, I thought the same thing but what I wondered is whether it got zapped by cold and if that might explain the somewhat different look. I think they tend not to be hardy colder than zone 6 and sometimes things that flower late in the year don't get a chance to fully do their thing if there's an early cold snap. It might be something else, it wouldn't be hardy here so I don't actually know what it looks like when frosted/frozen. I've only grown Caryopteris in the equivalent of USDA Zone 9

To me it looks more like caryopteris nipped by frost than the Pycnanthemum-virginianum. Flower is tighter. I don't know.

Danita, as I look at all the other photos, I think you are right!!!

Arlene, I don't suppose your friend can go back and snip off a stem? If it is Pycnanthemum the stem should be square (mint family). Do you know if it is growing wild or cultivated?

I can ask him but I think he just found it at an abandoned homesite. Good idea though.

Yes, Danita, now that you say Pycnanthemum! It reminds me of Pycnanthemum tenuifolium, which is native to Indiana.
http://www.kansasnativeplants....

It might be Pycnanthemum: https://en.wikibooks.org/wiki/...
P. virginianum: https://www.google.com/search?...

edited to correct my spelling.

I just found that top picture too, Lin, the bluest I've seen so far.

P. muticum according to the enlargement:

https://commons.m.wikimedia.or...

I just love the deep, dark blue color of those spent seedheads and it sure does appear to be Pycnanthemum of some sort. There are a couple of Pycnanthemum found in Indiana. It may be my eyesight but the leaves on the plant in Arlene's photo appear to be quite narrow in shape, more like those of:
Narrowleaf Mountain Mint (Pycnanthemum tenuifolium) which is found in a few counties in Indiana.
http://indiana.plantatlas.org/...
http://www.wildflower.org/plan...

Pycnanthemum verticillatum is reported in Marion County, Indiana but it's leaves appear broader in shape: http://indiana.plantatlas.usf....

I sure hope an exact ID can be found because Arlene's photo would make a great addition to our database!

It's not your eyes, Lin, or if it is then it's my eyes too The leaves on Arlene's plant do look narrower than the bluest Pycnanthemum in the pics, which was P. muticum.