Wild Mustard      Sinapsis arvensis L.
Photographs by Dr. Michael Pfeiffer
Sign Weed of disturbed areas. Some states in the U.S. and Canada list it as invasive or noxious.
infestation
click for a larger image 		infestation
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infestation
click for a larger image 		Flower
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siliques
click for a larger image 		stem
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foliage
click for a larger image 		stem, foliage
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foliage
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Annual