It is possible it is in the same family, but the leaves on all the wild lettuce photos I am seeing don't look the same. Most of the wild lettuce has leaves that are sort of like a bunch of triangles attached to the stem. This leave is much wider where it attaches to the stem and narrows to a point at the end. The edges of the leaves are curled, but a solid shape from end to end.

I happened across a photo of just the flowers that looked almost exactly the same. They said it was a spiny sowthistle. I just started researching spiny sowthistle, but I have a feeling it is part of the same family. spiny sowthistle is part of the dandelion family and I have found several photos that look a lot like what's in my yard. The only difference is all the purple on the stems and leave. All the spiny sowthistle photos don't have the purple.

But so far, none of the photos has been identical enough to what is in my yard for me to feel comfortable that it is a match. Lots of similarities, but no exact matches yet.

Plus, how did this thing grow so quickly? Three feet in 2 weeks? Have aliens invaded or something, lol.