Canadian Horseweed in St. Mary's Co., Maryland (8/13/2017).
Canadian Horseweed in Somerset Co., Maryland (8/28/2020).
Map Snapshot
11 Records
Status
Most regional floras do not recognize any sub-specific taxa of Conyza canadensis. Two varieties were recognized in the Maryland checklist (Knapp and Naczi, 2016): Conyza canadensis var. canadensis and var. pusilla. Variety pusilla has glabrous stems and red-tipped phyllaries.
Citations
No citations linked for this taxon yet.
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Canadian Horseweed in St. Mary's Co., Maryland (8/13/2017).
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Media by
Tyler Bell.
Canadian Horseweed in Somerset Co., Maryland (8/28/2020).
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Media by
Jim Brighton.