Featured in Magnificent Minnesota April 27, 2009.
Featured in Wildflowers of North America, December 2009.

I don’t know what this is but, it caught my eye while I was walking my dog.
Update: Thanks to some fellow bubblers this has been identified.

Daucus carota (common names include wild carrot, (UK) bird’s nest, bishop’s lace, and (US) Queen Anne’s lace) is a flowering plant, native to temperate regions of Europe, southwest Asia and northeast North America.
Daucus carota is a variable biennial plant, usually growing up to 1 m tall and flowering from June to August. The umbels are claret-coloured or pale pink before they open, then bright white and rounded when in full flower, measuring 3–7 cm wide with a festoon of bracts beneath; finally, as they turn to seed, they contract and become concave like a bird’s nest.
Description taken from wikipedia.

Wild Area near Austin, Minnesota. USA.
Google Earth: 43º 39.373’N, 92º 57.650’W

Canon EOS 40D, EF70-200mm f/2.8L USM
1/400, f3.5, 200mm, iso400