A few years ago I found this growing at a nursery here in Vt. The plants at this nursery are grown in containers and many are also lined out in a field. After walking around for several hours I kept returning to an area filled with this plant. When I questioned the owner she told me it was a weed, handed me a bag and shovel and said to take all I wanted
The plant starts as a flat rosette of leaves in spring ( April), grows upward as in the first image ( taken today) and then later in July has 3 - 4 foot spikes with many odd stems that produce tiny white flowers as in the 2nd image - they remind me of peacock feathers for some reason. The root is similar to a dandelion, but pulls easily. It does not like to be transplanted. The stems and tiny white flowers do produce seed, but it is not a thug spreading everywhere and seems to have trouble seeding compared to the number of seeds available. Seedlings are easily managed if they show where I don't want them. I would love to know what this is.