Web Directory

» Carduus acanthoides
   Photograph, systematic position, morphology, biology, distribution, ecology and economic significance of the Plumeless Thistle.
   http://www.agroatlas.ru/weeds/Carduus_acanthoides_en.htm

» Carduus carlinioides: Pyrenean Thistle
   Photograph, identification and distribution.
   http://homepage.ntlworld.com/david.scott40/08/0812/081263.htm

» Carduus defloratus: Alpine Thistle
   Photograph, identification and distribution.
   http://homepage.ntlworld.com/david.scott40/08/0812/081200.htm

» Carduus nutans
   Photograph, systematic position, morphology, biology, distribution, ecology and economic significance of the Nodding Plumeless Thistle or Musk Thistle.
   http://www.agroatlas.ru/weeds/Carduus_nutans_en.htm

» Carduus personata: Great Marsh Thistle
   Photograph, identification and distribution.
   http://homepage.ntlworld.com/david.scott40/07/0710/071097.htm

» Carduus tenuiflorus: Slender Thistle
   Photograph, identification and distribution.
   http://homepage.ntlworld.com/david.scott40/08/0810/081084.htm

» Musk Thistle or Nodding Thistle: Carduus nutans
   Photographs of varying stages in the growth of this biennial plant with its description and identifying characteristics.
   http://www.ppws.vt.edu/scott/weed_id/carnu.htm

» Plumeless Thistle: Carduus acanthoides
   Photographs of varying stages in the growth of this plant.
   http://www.ppws.vt.edu/scott/weed_id/cruac.htm