Wow, that was fast, CaraRose, thank you! I'll google it, but wow, the burdock I know is tiny in comparison, this is a monstrous one :)

I'm with Dee. I'm not especially good at IDs either. But, I agree that the second looks like an aster. (Are the stems stick? My asters all have sticky stems.) The third could be a Rudbeckia of some kind. When I don't know what something is, I wait until it blooms, and if I see it's a weed, I yank it out before that bloom can set seed.

WELL...last night someone on name that plant forum indicated that it was called Yellowrocket, which led to finding that it is probably a very close relative of Yellowrocket: Wild Radish. Whis is a very close relative to Wild Mustard :-) The only reason it can't be Yellowrocket is because the stems and leaves have tiny hairs, which indicates it is Wild Radish. However. I have seen pics of Wild Radish now on Google Images that don't look like this plant, and some that show Yellowrocket looking dead-on accurate, save for the leaves. Ha. At any rate, I'm pulling them up...tis' not to be... Thanks so much for your help, timbu and fammsimm. Now I am also familiar with two other kinds of weeds, so if I spot them, I'll know right away :-) Joanna

Oh boy!! Well, at this point I'm concentrating mainly on getting the garlic mustard out and only pulling others when they're right in with the GM. Hopefully the 2nd isn't as prolific as the GM, or I'll be in another world of hurt next year! I'm still dealing with the remnants of Jerusalem artichoke as well! Yeesh! OH BTW - could #1 maybe be an Actaea? I'm really hoping not to have to pull it - I've got a bit of it in there and it's actually kind of pretty in a group - I'm gonna keep an eye on it, and see if it blooms and what they look like.