spotted Joe Pye weed

(Eutrochium maculatum)

spotted Joe Pye weed

Spotted Joe Pye weed, is a perennial flowering plant native to eastern and central North America. It is the only Joe Pye weed species that occurs in the western half of North America. There are three varieties of spotted Joe Pye weed, and all of them occur in Minnesota.

Spotted Joe Pye weed is found in moist to wet habitats, including sedge meadows, marshes, fens, swampy thickets, woodland edges, lake shores, and stream banks. It grows under full sun or partial shade, in rich, silty, or sandy soil.

Spotted Joe Pye weed is often included in managed landscapes and is sometimes cultivated in gardens.


Spotted Joe Pye weed is a tall, erect plant that can reach heights of 4 to 7 feet (1.2 to 2.1 meters) or even taller. It has a robust, bushy growth habit with multiple stems arising from a single base.

The stems are erect and usually light green with purple spots but are sometimes more evenly purple.

The leaves are arranged in whorls of 3 to 6, usually 4 or 5, around the stem. The leaf blades are lance-shaped to elliptic or egg-shaped, 3 to 10 long, and 1 to 3½ wide. They have a prominent midvein, are green and dull on the upper side, and are lighter green on the underside. The margins are toothed.

The inflorescence is a branched, flat-topped or nearly flat-topped cluster of numerous pinkish-purple flower heads at the top of the stem. They bloom from July to September.


Distribution Map



2, 3, 4, 5, 7, 24, 28, 29, 30.

  Kingdom Plantae (green algae and land plants)  
  Subkingdom Viridiplantae (green plants)  
  Infrakingdom Streptophyta (land plants and green algae)  
  Superdivision Embryophyta (land plants)  
  Division Tracheophyta (vascular plants)  
  Subdivision Spermatophytina (seed plants)  
  Class Magnoliopsida (flowering plants)  
  Superorder Asteranae  


Asterales (sunflowers, bellflowers, fanflowers, and allies)  


Asteraceae (sunflowers, daisies, asters, and allies)  
  Subfamily Asteroideae  
  Supertribe Helianthodae  
  Tribe Eupatorieae (bonesets, blazingstars, and allies)  
  Subtribe Eupatoriinae  


Eutrochium (Joe Pye weeds)  

Joe Pye weeds were originally 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.


Subordinate Taxa


Bruner’s 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


Common Names


spotted Joe Pye weed

spotted Joe-pye-weed

spotted joepyeweed

spotted trumpetweed











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  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)  
  Eutrochium maculatum (Joe-Pye Weed)
Allen Chartier
  Eutrochium maculatum (Joe-Pye Weed)  



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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.




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Location: Wetmore Park by the boardwalk Wetmore, Michigan


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







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