Family: Asteraceae
boneset, common boneset, thoroughwort
[Eupatorium perfoliatum f. perfoliatum L., more...]
Asa Thoresen
Hugh H. Iltis
University of Wisconsin - Madison (WIS-VP)
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, 3'-4' tall forb; stems with long spreading hairs
Leaves: opposite, sharply toothed, pointed tip and a wide base surrounding the stem
Flowers: head with 9-23 white disk flowers; inflorescence 6" flat to roundish, branched clusters; blooms July-Oct.
Fruits: dry seed on fluffy pappus
Habitat: full sun; wet to moderate moisture; meadows, prairies, shores; in sandy, loamy soil
Conservation Status: Native
Plants: erect, perennial, 3'-4' tall forb; stems with long spreading hairs
Leaves: opposite, sharply toothed, pointed tip and a wide base surrounding the stem
Flowers: head with 9-23 white disk flowers; inflorescence 6" flat to roundish, branched clusters; blooms July-Oct.
Fruits: dry seed on fluffy pappus
Habitat: full sun; wet to moderate moisture; meadows, prairies, shores; in sandy, loamy soil
Conservation Status: Native
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 6, Wetland Indicator = FACW+ Atlas of the Wisconsin Prairie and Savanna Flora: by T.S. Cochrane & H.H. Iltis: habitat, distribution infomation / flowering and fruiting times USDA Plants Database: Federal Distribution and detailed information including photos University of Wisconsin - Green Bay: Wetland Plants: Photos, descriptions, information USGS - Northern Prairie Wildlife Research Center: Wetland Plants and Plant Communities of Minnesota and Wisconsin Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. David G. Smith's "Delaware Wilflowers": Beautiful photographs; descriptions Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key Purple Sage - Ethnobotanical Information: Detailed usage, preparation, and other helpful information Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"
Hugh H. Iltis
Merel R. Black
Clifford Orsted
Rob Baller
Christopher Noll
Clifford Orsted
Derek Anderson
Marion Sheehan
Aaron_Carlson
