Swamp Sunflower Helianthus angustifolius Linnaeus  Synonyms: Helianthus angustifolius var. nemorosus, Narrow-leaved Sunflower.

There are 25 records in the project database.

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Swamp Sunflower in Dorchester Co., Maryland (10/2/2017). Photo by Wayne Longbottom. (MBP list)

Swamp Sunflower in Howard Co., Maryland (10/11/2017). Photo by Bill Harms. (MBP list)

A Swamp Sunflower in Dorchester Co., Maryland (9/15/2012). Note the extremely thin leaves which are a diagnostic field mark. Photo by Jim Brighton. (MBP list)

Non-flowering Swamp Sunflower in Dorchester Co., Maryland (7/29/2014). Photo by Jim Brighton. (MBP list)

The leaves of Swamp Sunflower in Somerset Co., Maryland (6/24/2014). Photo by Jim Brighton. (MBP list)

Swamp Sunflower in Dorchester Co., Maryland (6/24/2017). Photo by Bill Hubick. (MBP list)

Swamp Sunflower in Dorchester Co., Maryland (9/20/2017). Photo by Wayne Longbottom. (MBP list)


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