spiny sowthistle

Sonchus asper (L.) Hill

Selected Images from Invasive.org

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Flower(s) May. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
James H. Miller, USDA Forest Service, Bugwood.org
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Flower(s)
Bruce Ackley, The Ohio State University, Bugwood.org
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Seed(s)
Mary Ellen (Mel) Harte, , Bugwood.org
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Foliage
Robert Vidéki, Doronicum Kft., Bugwood.org
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Plant(s)
Chris Evans, University of Illinois, Bugwood.org
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Plant(s)
Chris Evans, University of Illinois, Bugwood.org
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Plant(s)
Chris Evans, University of Illinois, Bugwood.org
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Plant(s) April. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.org
Additional Resolutions & Image Usage
Foliage S. asper on left, S. oleraceus on right
Steve Dewey, Utah State University, Bugwood.org
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Foliage
Catherine Herms, The Ohio State University, Bugwood.org
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Foliage Sonchus oleraceus on the left and S. asper on the right.
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Distribution