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

There are 18 records in the project database.

View species at Maryland Plant Atlas

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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)


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