Looking up the plants was kind of exciting as it was my first time using the book for reference rather than just browsing. It was also frustrating as there were two I couldn't positively identify (at least I think I positively ID'd the rest!).
Here are my best shots at identification:
Top: native viburnum (V.trilobum) This is a cheat, really, because I got the identity of this shrub compliments of the very helpful Gardening Zone 3b
Middle (L to R): L: Anemone canadensis (Canada Anemone); Centre: unknown (a prostrate plant almost flush to the ground on a steep, mossy, shaded outcrop); R: Cornus canadensis (Bunchberry)
Bottom (L to R): L: Mertensia paniculata (Tall Bluebells) - notice the visitor in the bottom left blossom; R: unknown (the blossom looks kind of like the False Solomon's Seal and the leaves look like an Astilbe....hmmmm.
Any suggestions on the two mystery plants, savvy readers?
PS. I just have to add, I was at the Edmonton Horticultural Society meeting tonight where the guest speaker was the totally great Donna Balzer. Heard conversation between two cute white-haired gentlemen behind me:
First man: "I got six mls of rain so far - that's it!"
Second man: "A man could cry more than that!"
This is why I love gardeners -- they are all poets at heart!
Edit: I may have (at least partially!) solved the mystery of the plant in the bottom right. A look over at the excellent post on shade foliage by Northern Shade has given me the hint I needed. I think this mystery plant with the white bottlebrush flower may be a Cimicifuga simplex. I don't know if it would be a native species (I'm thinking not) or an escapee from someone's garden (more likely). Now if only I could figure out the plant in the middle with the yellow flower and most interesting leaves on spiny stems.
PPS: My guess above was wrong, Home Bug Garden solved the puzzle of the Bottom Right plant. See comments below for the answer. Many thanks to HBG!