Bull Thistle (Cirsium vulgare)

Posted by on Jun 15, 2012 in Blog | 5 comments

Bull Thistle (Cirsium vulgare), Dolly Sods Wilderness, Tucker County, West Virginia, USA

Bull Thistle (Cirsium vulgare), Dolly Sods Wilderness

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The Bull Thistle (Circium vulgare) is a member of the Asteraceae or Aster family.  It is biennial which grows between 2- and 5-feet tall.  The stem is mostly spreading-hairy and conspicuously spiny-winged by the leaf bases.  The leaves, from 3- to 12-inches long and 1- to 4-inches wide, are strongly spiny, rough-hairy above and thinly hairy beneath, and dissected into irregular lobes.  The flower heads, usually several to each leafy spiny stalk, are predominantly purple in color.  The bracts at the base of the flower-head are spine-tipped.  The Bull Thistle can be found in pastures, waste ground and on roadsides throughout North America.  It flowers from June to October.

5 Comments

  1. Lovely Macro. Sharp, colorful, great bokeh. All around nice work!
    Adam Allegro recently posted..Golden OrtigiaMy Profile

  2. Lovely work Mark. Excellent macro.
    Edith levy recently posted..iPhone Friday – Welcome to the TheatreMy Profile

  3. Excellent color and details mark
    Len Saltiel recently posted..Mirror, MirrorMy Profile

  4. Love the detail here. Great macro.
    Marc Collins recently posted..San Giorgio MaggioreMy Profile

  5. Outstanding macro shot, Mark. Love the details on this.
    Jimi Jones recently posted..New York New YorkMy Profile

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