Friday, May 13, 2011

Nodding Thistle (Carduus nutans L.)

You may be noticing these rather tall (2-7') flowers standing along the roadside or in fields. The Nodding Thistle is a member of the Aster or Sunflower Family. The stems are extremely prickly and the pretty purple flowers can be 2" across. Bloom time May thru November. Considered a noxious weed, farmers and ranchers dislike this plant (can you see why?). Look/photograph, but don't touch!

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