Sunday, September 26, 2010

Bull Thistle

Bull Thistle
Steve discussed the Bull Thistle during the wildflower walk.  I love its color.  The Bull Thistle has many little florets in the "head".  Each one produces seed connected to what I call a "parachute."  The wind disperses the seeds once they are mature.

Bull Thistle Seed
The power of reproduction is very strong in nature. 

These thistles grew in my father's pasture.  The cows avoided them when eating grass.  They are very prickly.  He would "clip", mow, the pasture once or twice a season so that they would not "go to seed." 

I have seen Goldfinches feeding on the seeds of this plant.  They are easier to photograph when feeding.



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