Etymology: 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
Plants: erect, perennial, 2'-5' tall forb with a single stem
Leaves: opposite, toothed, dotted with glands, base rounded, mostly stalkless but not clasping
Flowers: head with mostly 5 white flowers; inflorescence small, branched, widely-spaced clusters of heads; blooms Aug.-Sept.
Fruits: dry seed on fluffy pappus
Habitat: woods; in sandy, acidic soil
Conservation Status: Special Concern
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 9 WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin listed species including state and federal status, photos, etc. USDA Plants Database: Federal Distribution and detailed information including photos