Interactive Encyclopedia of North American Weeds

This award winning DVD-ROM includes:

  • 690 weed species with descriptions and maps
  • Over 4,300 photographs – interactive identification key to all weeds in the program
  • Extensive interactive educational lessons, quizzes, and games on the principles of plant identification
  • Illustrated glossary of 595 botanical terms
  • “Intriguing World of Weeds” articles on the history, impacts, and uses of weeds throughout recorded history

For additional information and to see an on-line demo, visit the Thundersnow Interactive Website.

Note: all sales benefit NCWSS.


  • US Sales: $49.95 + $5.00 S&H
  • International Sales: $49.95 + $10.00 S&H
  • To purchase more than one copy of the DVD, call (303) 327-8016 for pricing


Order by Mail

If you wish to purchase the DVD by mail, please follow the instructions on this mail-in form.

Order Online

To order the DVD online, visit the NCWSS Online Store.