After I came in with the picture I noticed the purple bloom hiding. It is part of the planned flower garden planted three years ago. There is a ring of them, allium [if memory serves] surrounding a man-made hill between a telephone pole and guy wire. The stem is 2' long. The bloom is bent over by the wind. We planted two Shasta daisies on the hilltop this spring.
The plant is 16" tall. I haven't seen anything like it nearby, or anywhere else for that matter [I admit I wasn't looking], so I'm thinking it is a "gift" from a bird passing by. Perhaps some kind of wildflower?
The yellow-flowered plant is goatsbeard, Tragopogon spp. - a genus of weeds introduced from Europe by agriculture. You'd have to post a close-up of the flower to get it down to the species. EDIT: And, btw, the seeds are wind-borne, just like dandelion seeds.
The purple one is an allium, likely Allium aflatunense.