The quiz was listed here: https://winterwoman.wordpress.com/2008/08/09/not-your-typical-bog/
And now, the answers…
2 – Marsh St Johnswort (Triadenum virginicum)
or maybe Fraser’s Marsh St Johnswort (T. fraseri) ?
There’s only one “Marsh St Johnswort” in my Newcomb’s Guide (c 1977). It is listed as Hypericum virginicum. At the USDA Plant database, though, there has been a split and a re-naming…
5 – Bur-reed (Sparganium sp.)
I’m not sure which species. I didn’t examine the plant very well while in the bog, due to mosquitos. Thanks to Bonnie Matthews who helped me ID it!
So, I knew 6 of 8… 75%. That’s a C. (I should probably get a C-minus for not remembering to take insect repellent into a bog.) Hmm… Makes me think of a poster on my field biologist’s door in college: “When hiking with a group of students, I make sure I always lead the way so that I can step on anything I don’t recognize.”