Saturday 17 March 2012

Bull Thistle


  • "Our" spiniest thistle.
  • A biennial, it produces a rosette of leaves the first year, and an upright flowering stalk the second year.
  • The "thistledown" , or bristles on the fruits, serve as parachutes to carry the light seeds.
 SOURCE: The Audubon Society Field Guide to North American Wildflowers (Eastern Region)

July 23rd, 2011
























July 23rd, 2011
























August 10th, 2011

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