spotted Joe Pye weed

(Eutrochium maculatum)

Conservation Status

IUCN Red List

not listed

spotted Joe Pye weed


N5 - Secure

SNR - Unranked


not listed


Great Plains

OBL - Obligate wetland


OBL - Obligate wetland

Northcentral & Northeast

OBL - Obligate wetland




See Subordinate Taxa (below) for identifying information.

Distribution Distribution Map   Sources: 2, 3, 4, 5, 7, 28.

A search for information on Joe Pye weeds from “authoritative” sources can cause some confusion regarding the plant’s genus. Originally Joe Pye weeds were assigned to the genus Eupatorium. In 1836 a French botanist (Rafinesque) separated Joe Pye weeds from that genus and proposed assigning them to the genus Eutrochium. Unaware of Rafinesque’s work, in 1970 researchers at the Smithsonian Institution (King and Robinson) proposed the genus Eupatoriadelphus for Joe Pye weeds, and it was widely adopted. In 1987, further study by the same researchers convinced them to return Joe Pye weeds to Eupatorium. In 1999 and 2000, DNA studies at the University of Tennessee (Schilling) concluded yet again that Joe Pye weeds did not belong to Eupatorium, and they were returned to the genus Eupatoriadelphus. In 2004, a contributor to the Flora of North America (Lamont), recognizing the precedence of earlier-established names, transfered the species to Eutrochium. All three names for the genus are currently in use.



Asteraceae (aster)













Subordinate Taxa

spotted Joe Pye weed (Eutrochium maculatum var. bruneri)

spotted Joe Pye weed (Eutrochium maculatum var. foliosum)

spotted Joe Pye weed (Eutrochium maculatum var. maculatum)


Eupatoriadelphus maculatus

Eupatorium maculatum

Eupatorium purpureum ssp. maculatum

Eupatorium purpureum var. maculatum

Eupatorium trifoliatum var. maculatum


spotted Joe Pye weed

spotted Joe-pye-weed

spotted joepyeweed

spotted trumpetweed










Visitor Photos
Share your photo of this plant.

This button not working for you?
Simply email us at
Attach one or more photos and, if you like, a caption.

  spotted Joe Pye weed   spotted Joe Pye weed Photos

spotted Joe Pye weed (Eutrochium maculatum var. bruneri)

  spotted Joe Pye weed (bruneri)   spotted Joe Pye weed (bruneri)

Variety Undetermined

  spotted Joe Pye weed   spotted Joe Pye weed



  Spotted Joe Pye Weed
  Spotted Joe Pye Weed  

Copyright DianesDigitals

  Spotted Joe Pye-weed (Eupotorium maculatum)
Andree Reno Sanborn
  Spotted Joe Pye-weed (Eupotorium maculatum)  
  Spotted Joe-Pye Weed (Eutrochium maculatum)
Bill Keim
  Spotted Joe-Pye Weed (Eutrochium maculatum)  
  Eutrochium maculatum (Joe-Pye Weed)
Allen Chartier
  Eutrochium maculatum (Joe-Pye Weed)  



Visitor Videos
Share your video of this plant.

This button not working for you?
Simply email us at
Attach one or more videos or YouTube links and, if you like, a caption.

Other Videos
  Eupatorium Joe Pye weed

Published on Sep 21, 2012

Eupatorium Joe Pye weed
Zone 4-8
Scientific Name : Eupatorium maculatum
Common Name : Joe-pye weed
Hardiness Degree : -30°F (-34.4°C)
Blooming Season : Autumn, Late Summer
Plant Habit : Mounded, Upright
Characteristics : Heat Tolerant, Shade Tolerant, Low Maintenance
Water : Medium
Fertilize : Once a month
Spacing : 28 - 34" (71 - 86cm)
Height : 68 - 72" (173 - 183cm)
Width : 26 - 30" (66 - 76cm)
Exposure : Partial Sun

  Great Spangled Fritillary August 31, 2013
Don Gagnon

Published on Sep 2, 2013

Great Spangled Fritillary (Speyeria cybele) Nectaring Joe-Pye Weed (Eupatorium maculatum), Sherborn Power Line, near Fessenden Field, Western Avenue, Sherborn, Massachusetts, Saturday morning, August 31, 2013, 11:03 AM / 11:44 AM - Canon PowerShot SX50 HS MVI_44363 / MVI_44386; 37 min.




Visitor Sightings
Report a sighting of this plant.
This button not working for you?
Simply email us at
Be sure to include a location.


Location: Lake Shore, Cass County

spotted Joe Pye weed


Baker Park Reserve

Bertram Chain of Lakes Regional Park

Blaine Preserve SNA

Buffalo River State Park

Cedar Creek Ecosystem Science Reserve

Cedar Mountain SNA

Charles A. Lindbergh State Park

Chippewa Prairie

Elm Creek Park Reserve

Englund Ecotone SNA

Felton Prairie SNA, Shrike Unit

Felton WMA

Foxhome Prairie

Glacial Lakes State Park

Glendalough State Park

Greenleaf Lake SRA

Holthe Prairie SNA

Hyland Lake Park Reserve

Iron Springs Bog SNA

Itasca State Park

Kettledrummer Prairie

Kilen Woods State Park

Lake Bemidji State Park

Lake Carlos State Park

Lake Rebecca Park Reserve

Langhei Prairie SNA

Leif Mountain

Lester Lake SNA

Lutsen SNA

Maplewood State Park

Margherita Preserve-Audubon Prairie

Mille Lacs Kathio State Park

Mound Spring Prairie SNA, North Unit

Northern Tallgrass Prairie NWR, Hoffman Unit

Northern Tallgrass Prairie NWR, Spieker Unit

Old Mill State Park

Ordway Prairie

Pembina Trail Preserve SNA, Crookston Prairie Unit

Pin Oak Prairie SNA

Plover Prairie, East Unit

Prairie Coteau SNA

Prairie Smoke Dunes SNA

Quarry Park SNA

Regal Meadow

Rice Lake Savanna SNA

Richard M. & Mathilde Rice Elliott SNA

Savage Fen SNA

Savanna Portage State Park

Sedan Brook SNA

Seven Sisters Prairie

Sheepberry Fen

Shooting Star Prairie SNA

Sibley State Park

Spring Beauty Northern Hardwoods SNA

Spring Prairie Preserve

Springbrook Nature Center

Thorson Prairie WMA

Town Hall Prairie

Tribute WMA

Twin Valley Prairie Addition

Twin Valley Prairie SNA

Tympanuchus Prairie

Vermillion River WMA

Western Prairie SNA




Last Updated:

About Us | Privacy Policy | Contact Us | © 2020 All rights reserved.