Invasive Weeds - Group 1
- Title
- Canada thistle infestation, Cirsium arvense.
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- Photo Information
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Family: Sunflowers, thistles, daisies, dandelions (Compositae)
Scientific Name: Cirsium arvense
Date of Image: 9-84
UC IPM Identifier: W-CO-CARV-IF.003
Notes: *LD3343 - Photographer
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Clark, Jack Kelly
Principal Photographer
Strategic Communications - Description
- Infestation in alfalfa field; .