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  5. Land Management
  6. Noxious Weed Information
  7. Weed Species with Descriptions
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Weed Species


    1. Section Overview (PDF)
    2. Absinthe Wormwood (PDF)
    3. Black Henbane (PDF
    4. Bull Thistle (PDF)
    5. Canada Thistle (PDF)
    6. Chicory (PDF)
    7. Chinese Clematis (PDF)
    8. Common Burdock (PDF)
    9. Common Mullein (PDF)
    10. Common Tansy (PDF)
    11. Cypress Spurge (PDF)
    12. Dalmatian Toadflax (PDF)
    13. Dame's Rocket (PDF)
    14. Diffuse Knapweed (PDF)
    15. Downy Brome (PDF)
    16. Field Bindweed (PDF)
    17. Hoary Alyssum (PDF)
    18. Hoary Cress / Whitetop (PDF)
    19. Houndstongue (PDF)
    20. Leafy Spurge (PDF)
    21. Meadow Knapweed (PDF)
    22. Musk Thistle (PDF)
    23. Myrtle Spurge (PDF)
    24. Oxeye Daisy (PDF)
    25. Perennial Pepperweed (PDF)
    26. Plumeless Thistle (PDF)
    27. Poison Hemlock (PDF)
    28. Russian Knapweed (PDF)
    29. Russian Olive (PDF)
    30. Salt Cedar / Tamarisk (PDF)
    31. Scentless Chamomile (PDF)
    32. Scotch Thistle (PDF)
    33. Spotted Knapweed (PDF)
    34. Sulfur Cinquefoil (PDF)
    35. Wild Caraway (PDF) 
    36. Yellow Toadflax (PDF)

Contact Us

  1. Brian Pettet

    Brian Pettet

    Director
    Email

    Public Works Office
    76 Service Center Road
    Aspen, CO 81611

    Ph: 970-920-5390
    Fx: 970-920-5374
    970-429-2700 TDD/TYY
    Email

    Gerald Fielding


    County Engineer
    Email

    Romany Iacono


    Public Works Specialist
    Land Management Specialist
    Email

    Hours of Operation
    Staff Directory
  1. Weed Advisory Board
  2. Herbicide Information
  3. Printed Materials
  4. Weed Management Plan
  5. Weed Species with Descriptions

Pitkin County

  1. 530 East Main Street
    Aspen, CO 81611

    Phone: 970-920-5200

Other Pitkin Co. Websites

  1. Aspen/Pitkin County Airport
  2. Elections
  3. Healthy Rivers
  4. Landfill
  5. Library
  6. Pitkin Wildfire
  7. Pitkin Emergency Preparedness
  8. Senior Services
  9. Stop Fighting it Hurts
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  2. 2022-23 Colorado Municipal Guide
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