The one between Mahonia and Conopholis is Tipularia discolor (cranefly orchid).

too many for my lack of concentration... ken

Too much scrolling. Would help to at least number them.

The fern could be Pteridium aquilinum. If so it would just be the first stem to arise from the rhizome and there would be more if you revisited the spot later.

The fern could also be rattlesnake fern, Botrychium virginianum. Stem looks kind of succulent for Pteridium.

The last one is golden ragwort, Packera aurea.

I think NHBabs got the point across about posting a lot of pictures in a single post. I didn't want to hijack the forum into my personal plant identification guide, and that was my thought. Either way, I really appreciate the expertise of those who offered thoughtful consideration!

We love puzzles and are very happy for you to ask for as many ids as you need. But is much easier if you do one plant per post.

If this were around here, I would say that the one before the ragwort is a hosta seedling. I see many of these in our local woods where they have escaped to the wild.

I'd say the fern is definitely Rattlesnake Fern (Botrychium). You can see the stalk with the sporecases developing from the center of the leaf in the middle of the pictures; In Pteridium (Bracken) the sori are on the bottoms of the leaves, not on a separate stalk.

I wondered about that fern being grape fern, which is a Botrychium, so it's nice to have that confirmed. Fern ID isn't a strength for me.