Family: Asteraceae
spotted Joe-Pye-weed
[Eupatoriadelphus maculatus (L.) R.M.King & H.Rob., more...]
Merel R. Black
Joshua J. Nemec
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, 2'-7' tall forb; stems spotted or evenly purplish
Leaves: sharply toothed, mostly in whorls of 4-5
Flowers: head with 9-22 pink to purple disk flowers; inflorescence a 7", usually flat-topped, branched cluster; blooms July-Sept.
Fruits: dry seed on fluffy pappus
Habitat: full sun; wet to moist; meadows, marshes, shores; in sandy, loamy, limy soil
Conservation Status: Native
Plants: erect, perennial, 2'-7' tall forb; stems spotted or evenly purplish
Leaves: sharply toothed, mostly in whorls of 4-5
Flowers: head with 9-22 pink to purple disk flowers; inflorescence a 7", usually flat-topped, branched cluster; blooms July-Sept.
Fruits: dry seed on fluffy pappus
Habitat: full sun; wet to moist; meadows, marshes, shores; in sandy, loamy, limy soil
Conservation Status: Native
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 4, Wetland Indicator = OBL 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 Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"
Joshua J. Nemec
Joshua J. Nemec
Merel R. Black
Matthew L. Wagner
Keir Morse
Merel R. Black
Merel R. Black
Clifford Orsted
Clifford Orsted
Asa Thoresen
Robert W. Freckmann
Christopher Noll
Matthew L. Wagner
Keir Morse
from USDA Plants website
