Coastal Plain Joe Pye Weed Eutrochium dubium (Willdenow ex Poiret) E.E. LamontSynonyms: Eastern Joe-Pye Weed,  Eupatoriadelphus dubius,  Eupatorium americanum,  Eupatorium dubium,  Eupatorium ternifolium,  Three-nerved Joe-Pye Weed.

Status:

Common late summer blooming joe pye. Found in open wet areas like roadside ditches and freshwater marshy areas. Restricted to the coastal plain.

Description:

Differentiated from the other two extant Eutrochium species by leaf blades being prominently three veined. The lowest veins are much more pronounced and longer then the upper veins. Stem is generally a deep purple and not glaucous. Generally much shorter than Hollow Joe Pye Weed.

There are 96 records in the project database.

View species at Maryland Plant Atlas

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Coastal Plain Joe Pye Weed blooming in Queen Anne's Co., Maryland (8/26/2017). Photo by Jim Brighton. (MBP list)

Coastal Plain Joe Pye Weed in a creek drainage in northern Worcester Co., Maryland (8/19/2012). This species favors moist areas on the coastal plain. Note three nerves on leaves and pinched area on leaves near their bases. Photo by Bill Hubick. (MBP list)

Coastal Plain Joe Pye Weed in Anne Arundel Co., Maryland (9/6/2011). Photo by Bill Harms. (MBP list)

Coastal Plain Joe Pye Weed blooming in Worcester Co., Maryland (8/10/2014). Photo by Jim Brighton. (MBP list)

Coastal Plain Joe Pye Weed in St. Mary's Co., Maryland (8/9/2014). Photo by Jim Stasz. (MBP list)

Coastal Plain Joe Pye Weed in Anne Arundel Co., Maryland (9/6/2011). Photo by Bill Harms. (MBP list)

Coastal Plain Joe Pye Weed in Caroline Co., Maryland (8/27/2013). Photo by Jim Stasz. (MBP list)

Coastal Plain Joe Pye Weed blooming in Dorchester Co., Maryland (8/31/2016). Photo by Bill Hubick. (MBP list)

Coastal Plain Joe Pye Weed in bud in Worcester Co., Maryland (7/25/2015). Photo by Jim Brighton. (MBP list)

Coastal Plain Joe Pye Weed in Talbot Co., Maryland (8/21/2016). Photo by Jared Satchell. (MBP list)

Coastal Plain Joe Pye Weed (leaf) in Dorchester Co., Maryland (9/2/2017). Photo by Bill Hubick. (MBP list)


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