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IPM1007, Practical Weed Science for the Field Scout: Corn and Soybean

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Practical Weed Science for the Field Scout: Corn and Soybean

Violet, field (Viola arvensis)

Winter annual broadleaf

Violet, fieldField violet has leaves that are oval to spatula shaped in outline with round teeth along the margin. Upper leaves that occur along the flowering stem are much more linear in outline than basal leaves. Stipules occur at the base of the leaf petioles in the upper portions of the flowering stem, and these stipules are divided into five to nine linear segments. Individual flowers are typically 1/2 inch in length and width and consist of five petals that are white to yellow in color, usually with some purple markings or purple tinges. Four smaller petals occur above one larger petal.

Violet, field
Violet, field

 

Wild thing
 

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IPM1007 Practical Weed Science for the Field Scout: Corn and Soybean | Page 136 | University of Missouri Extension