Cup Plant Silphium perfoliatum Linnaeus var. perfoliatumExcluded  -  Non-native    
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Asterales   >   Family Asteraceae   >   Genus Silphium   

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Cup Plant in Howard Co., Maryland (7/21/2010). Photo by Bill Harms. (MBP list)

A Cup Plant blooming in Neal Smith NWR, Iowa. Photo by USFWS Headquarters. (MBP list)


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