I was at a site today that has a prairie put in at least 7 or 8 years ago and here is what is there today.
Liatris is fairly common
Man made prairie pics
Your "triloba" plant is Purple Praire clover - Petalostemon purpureum.
I was close ;) I do know it does well in very dry sites.
Yes Al--I'd say its hanging in there better than some of mine are. LOL
Does this site belong to a private person or is it one of those prairie restoration projects? We have several of those here.
It's at a light industrial manufacturer. I have seen some others around and they don't seem to have the diversity and the low amount of thistles.
How pretty! I did enjoy looking at those pics. Gave me some good ideas for my gardens too. ;)
Lin