Southern Horseweed Conyza canadensis (Linnaeus) Cronquist var. pusilla (Nuttall) Cronquist    
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Asterales   >   Family Asteraceae   >   Genus Conyza   


The pusila variety of Canadian Horseweed, known commonly as Southern Horseweed, can easily be identified by checking the tips of the phyllaries which are purple tipped.

There are 3 records in the project database.

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Southern Horseweed in Anne Arundel Co., Maryland (8/10/2011). NOTE: purple dots on the phyllaries. Photo by Bill Harms. (MBP list)

Southern Horseweed in Anne Arundel Co., Maryland (8/18/2010). Photo by Bill Harms. (MBP list)

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