IMCWMA Weed Identification- Red Alert Species

Click on any of the links below for photos and other information about that weed species:

• Dyer's woad (Isatis tinctoria)
  ©2005 Luigi Rignanese
  
  
• eggleaf spurge (Euphorbia oblongata)
  ©2001 CDFA
  
  
• little robin (Geranium purpurea)
  ©2007 Dr. Amadej Trnkoczy
  
  
• meadow knapweed (Centaurea debeauxii)
  ©2002 Molly Elizabeth Bagley
  
  
• parrot's feather (Myriophyllum aquaticum)
  ©2001 CDFA
  
  
• Patterson's curse (Echium plantagineum)
  ©2005 Luigi Rignanese
  
  
• purple loosestrife (Lythrum salicaria)
  ©2005 George W. Hartwell
  
  
• purple starthistle (Centaurea calcitrapa)
  ©2005 Luigi Rignanese
  
  
• red sesbania (Sesbania punicea)
  ©2005 George W. Hartwell
  
  
• rush skeleton weed (Chondrilla juncea)
  ©2006 Luigi Rignanese
  
  
• spotted knapweed (Centaurea stoebe)
  ©2007 Neal Kramer
  
  
• woolly distaff thistle (Carthamus lanatus)
  ©2006 Luigi Rignanese