Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  Eupatorium maculatum L. image
Photographer: Merel R. Black           

Asa Thoresen

Clifford Orsted

Clifford Orsted

Keir Morse

Matthew L. Wagner

Matthew L. Wagner

Merel R. Black

Joshua J. Nemec

Christopher Noll

Robert W. Freckmann
Family Asteraceae
Eupatorium maculatum L.
spotted Joe-Pye-weed
Eupatorium: from Greek name Mithridates Eupator, King of Pontus about 115BC who is said to have discovered an antidote to a commonly used poison in one of the species
maculatum: Latin for "spotted" or "mottled"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, perennial, 2'-7' tall forb; stems spotted or evenly purplish
Flower: head with 9-22 pink to purple disk flowers; inflorescence a 7", usually flat-topped, branched cluster; blooms July-Sept.
Fruit:dry seed on fluffy pappus
Leaf:sharply toothed, mostly in whorls of 4-5 leaf drawing
Habitat: full sun; wet to moist; meadows, marshes, shores; in sandy, loamy, limy soil

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All Eupatorium list Ethnobotany Information Google- Images or Text

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(for list of synonyms - see the subspecies)

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