You are here: Home / FGIS / Education and Outreach / Visual Reference Library
Stay Connected   USDA In Facebook USDA In Twitter USDA In Youtube USDA govdelivery USDA In Flickr USDA RSS
Stay Connected
Visual Reference Library - Other Factors
OF-RAGWEED SEED
OF-Ragweed Seed

Portion for Analysis: Normal work portion

 

TOP: Giant ragweed seed (Ambrosia artemisiifolia)

 

BOTTOM: Common ragweed seed (Ambrosia trifida L.)

>>> Next...

Last updated January 2012