Hollow Joe Pye Weed Eutrochium fistulosum (Barrett) E.E. Lamont  Synonyms: Eupatoriadelphus fistulosus, Eupatorium fistulosum, Hollow Joe-pyeweed.

Status:

Common across the state. Grows in wet areas like the edges of roadside ditches and along the banks of streams and creeks.

Description:

If you see a Joe Pye Weed that is as tall or taller than you are this is most likely Hollow Joe Pye Weed. Also differentiated from other Eutrochium species by the stems being strongly glaucous and having a hollow central cavity.

Relationships:

Documented in Maryland as one of many host plants for the leaf-miner fly Calycomyza flavinotum.

There are 192 records in the project database.

View species at Maryland Plant Atlas

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Hollow Joe Pye Weed on Deer Creek in Harford Co., Maryland (8/28/2016). Photo by Kirsten Johnson. (MBP list)

Hollow Joe Pye Weed in Allegany Co., Maryland (9/8/2012). Photo by Jim Brighton. (MBP list)

Hollow Joe Pye Weed in Frederick Co., Maryland (7/8/2017). Photo by Robert Warren. (MBP list)

Hollow Joe Pye Weed blooming in Harford Co., Maryland (8/23/2017). Photo by Josh Emm. (MBP list)

Hollow Joe Pye Weed in Garrett Co., Maryland (6/20/2014). Photo by Jim Brighton. (MBP list)

Hollow Joe Pye Weed in Prince George's Co., Maryland (8/30/2017). Photo by Bill Harms. (MBP list)

Hollow Joe Pye Weed in Howard Co., Maryland (9/7/2017). Photo by Bill Harms. (MBP list)

Hollow Joe Pye Weed in Allegany Co., Maryland (9/8/2012). This photograph shows the hollow stem. This plant and all the other Joe Pye in the area had been eaten by deer. Photo by Jim Brighton. (MBP list)

Hollow Joe Pye Weed in Garrett Co., Maryland (8/4/2017). Photo by Mark Eanes. (MBP list)

Hollow Joe Pye Weed in Washington Co., Maryland (8/5/2014). Photo by Jim Stasz. (MBP list)

Hollow Joe Pye Weed in Caroline Co., Maryland (8/23/2016). Photo by Wayne Longbottom. (MBP list)

Wayne Longbotton and blooming Hollow Joe Pye Weed in Charles Co., Maryland (9/23/2014). Photo by Jim Brighton. (MBP list)

Hollow Joe Pye Weed blooming in Baltimore Co., Maryland (8/9/1981). Photo by Jim Stasz. (MBP list)

Hollow Joe Pye Weed blooming in Garrett Co., Maryland (8/4/2017). Photo by Mark Eanes. (MBP list)

Hollow Joe Pye Weed (winter aspect) in Harford Co., Maryland (12/6/2015). Verified hollow stem. Photo by Bill Hubick. (MBP list)


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