I have a few Western Salsify (Tragopogon dubius) in my food forest this year.
I am glad my prevailing winds will blow their seeds on my property and not away. The seedheads are a typical dandelion ball and a puff of air sends them flying.
Although this plant is native to Eurasia, it has naturalized over most of the U.S. I welcome another free (to me) food source.
What I like most about them is that before blooming they look like giant green spiders on the ground.
Once established, they reseed easily. An easy, no maintenance food that can be harvested year after year.