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New! Version 4.0 Now compatible with 64-bit Windows Vista and Windows 7.
Visit the On-line Demo at: www.thundersnow.com/weedid.htm
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, and - Intriguing World of Weeds articles on the history, impacts, and uses of weeds throughout recorded history.