Robert W. Freckmann Herbarium


  Parthenium integrifolium L. image
Photographer: Merel R. Black           

Derek Anderson

Derek Anderson

Derek Anderson

Derek Anderson

Derek Anderson

Derek Anderson

Mark Mittelstadt

Merel R. Black

Christopher Noll

Theodore S. Cochrane
Family Asteraceae
Parthenium integrifolium L.
American feverfew, eastern feverfew, eastern parthenium, wild quinine
Parthenium: Greek parthenos for "virgin" referring to infertile disk flowers
integrifolium: Latin for "entire-leaved"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Threatened
Plant: robust, erect, perennial, 20"-40" tall, aromatic forb usually with no branches
Flower: head white, 1/4" wide with a few rays and a prominent disk; inflorescence of many heads in dense, flat-topped clusters; blooms July-Sept.
Fruit:black, dry seed without a fluffy pappus
Leaf:alternate, large, toothed; lower on long stalks, upper smaller and stalkless to clasping
Habitat: full sun; dry to moist; prairies, woods; in sandy, loamy soil
Notes: often planted north of its natural range
(Glossary)

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

Flora of North America (off site)
Synonyms 
Parthenium integrifolium L. var. integrifolium

         
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