lycopus, thank you. I'm not quite sure this is it. It looks very, very much like what I have, but the leaves are just a bit off. All the photos I see have leaves which are rather flat. The leaves on mine are more curled up at the edges, even with a slight ruffle to some of them. (Of course, that could be because it's in a vase of water on my table, and not outside in the sun in the garden! I'll take a look at the ones still in the garden next time I'm there.) Other than that, the images look very similar. I will leaves a few in the garden and see if they go to berry. That may help me identify it more firmly. It is indeed a nice looking plant. Perhaps I will try to transplant some out of the beds and along the woodland edge. Thank you! Dee

Almost certainly Galium aparine, aka cleavers or bedstraw. It pulls out easily in moist soil but also breaks off easily. My pup is forever bringing in pieces of it attached to his fur after doing his rounds of the exterior of the garden where it abuts the greenbelt.

You can still hand-pull that, but if it's spottily in other parts of the lawn as well, I might suggest spot-spraying with Weed B Gon Crabgrass Killer. Mix up the concentrate in a one-gallon sprayer (it's cheaper that way) and keep after it to avoid having the CG seed out.

It's Arum italicum. It is a much discussed plant on a number of forums. Here's one: https://www.gardenweb.com/discussions/peren/query/arum-italicum/nqrw Quite a few discussions on the Name That Plant forum as well.