Eupatorium sessilifolium Porter  
Family: Asteraceae
upland boneset, woodland boneset
[Eupatorium sessilifolium var. brittonianum L.]
Eupatorium sessilifolium image
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 leaf drawing
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
Eupatorium sessilifolium image
Paul E. Berry  
Eupatorium sessilifolium image
Christopher Noll  
Eupatorium sessilifolium image
Christopher Noll  
Eupatorium sessilifolium image
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