Questions for the Hive Mind: Park NOIDs

Some NOIDs from the trip a couple days ago to Kent State Park, including a reposting of a couple from the Yellow post on Tuesday. Slightly more detail may be available if opened in another window:

#1: Possible Oenothera?


#2: The one that's been driving me crazy in the last few weeks. (Identified in comments by J as Chamaecrista fasciculata, partridge pea. It was probably deliberately planted by the state.)


#3: Blue thing. (Identified in comments by J as Campanula americana.)


#3: Another shot of the blue thing.


#4: Strange orangish flower. (Identified in comments by J as Impatiens capensis)


#5: Vine with red-purple flowers. This one's scary: I saw it strangling a thistle, for chrissakes. It also seems really familiar to me, but I can't place it. (Identified in comments by J as Apios americana, American groundnut.)


#6: Not a good picture, I'm aware. I'm not really expecting an ID. Just point me in a direction.


Anybody have any guesses?

Pretty picture: Campanula carpatica 'Deep Pearl Blue'

Not, perhaps, the most impressive picture: I was a little rushed when I took it. But the flower is only okay anyway. The coolest part about it is the color. I'm coming to appreciate blue and bluish flowers a lot more, after seeing how few of them exist.