Equisetum arvense L.  
Family: Equisetaceae
field horsetail,  more...
[Equisetum arvense var. alpestre Wahlenb.,  more]
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Max Licher  
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Max Licher  
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Max Licher  
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Sue Carnahan  
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Sue Carnahan  
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Mona Terwedow  
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Arizona State University Herbarium  
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