I'm not good enough to ID, and the wildcrafting forum I'm on refuses to ID things like Queen Anne's Lace because of the danger of poisonous plants. Poison Hemlock is in the same family, ID from a photo is considered irresponsible. If you didn't plant it, my guess is, the pretty little flowers will turn into "stick tights". I would see the stick tight plant and think it was pretty, leave it and the next time I went out it would be covered in barbed seeds. I've been googling and trying to figure out if my weeds are Queen Annes Lace, as they seem to have spiny seeds, but I'm not sure.

When you pull one of these weeds, if the roots smells like carrot, it is Queen Anne's Lace. If the plant is hemlock, it will have a replusive musty smell sometimes described as smelling like a mouse. What does a mouse smell like?

Normally, but I will not say always because there are some different species of QAL and they don't all look the same, the QAL has tiny hairs on the stems. The stems can be solid green or solid green with teeny tiny red pinstripes. The poisonous hemlock has some purple splotches on its stems. Some QAL, but not all, have a dark flower, variously described in different sources as red, maroon, black or purple, in the center of each flower cluster, but this can be iffy and inconsistent and is not necessarily a reliable indicator. The species of QAL that grows wild at our place never ever has had the oddly colored flower, only the creamy white ones. If you have the QAL, when the plants go to seed (don't let them!), the seed heads curl inward on themselves forming something that looks a little like a bird nest. Also, the poisonous hemlock usually needs wet ground to grow but QAL can grow in wet or dry ground. And, poisonous hemlock gets taller and more spread out, though the QAL flower heads will spread out a lot and have less tight flowerheads as the seeds mature, so the flower spread isn't always reliable.

whatever it is, I have it too. I'm still pulling it by the handfuls. I'm very sure it came in a wildflower mix I bought from a big box store. It's going to seed, so I am quite sure I will see it again next year.

And for the rest of your life you'll be seeing it too. We have acres of it here.

Yes, the only way to eradicate QAL is to pull it for a few years (and get it all). I found a possible native replacement that looks SO much better than QAL that simply appeared in my lawn this year. I'm going to try to grow it on purpose next year and see how it behaves.

It's latin name Ptilimnium nuttallii. is probably unpronounceable, but Laceflower as a common name is not. Take a look at a shot...it's short (under two foot), dense with attractive threadlike leaves