Robert W. Freckmann Herbarium
University of Wisconsin - Stevens Point

Vascular Plants

Plants of Wisconsin

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  Eupatorium altissimum L. image
Photographer: John M. Schoeneker           

Richard Bauer

Emmet J. Judziewicz

Emmet J. Judziewicz

Christopher Noll

Janice Stiefel
Family Asteraceae
Eupatorium altissimum L.
upland boneset, tall boneset, tall eupatorium, tall thoroughwort
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
altissimum: Latin for "especially tall"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, perennial, 3'- 6 1/2' tall forb with leafy, hairy stems
Flower: head with mostly 5 white, disk flowers; inflorescence of many heads in branched, flattish clusters; blooms July-Sept.
Fruit:dry seed on fluffy pappus
Leaf:many, opposite, hairy, 2"-5" long, lance-like, pointed at both ends and usually with a few, small teeth above the middle leaf drawing
Habitat: woods, thickets, savannas, glades
(Glossary)

More Information Natural Communities Herbarium Specimens
All Eupatorium list Google- Images or Text

Flora of North America (off site)
Synonyms 
Eupatorium saltuense Fernald

Vascular Plants

Plants of Wisconsin

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