Family: Asteraceae
American feverfew, eastern feverfew, eastern parthenium, wild quinine
[Parthenium integrifolium var. hispidum L., more...]
Derek Anderson
Merel R. Black
Etymology: Parthenium: Greek parthenos for "virgin" referring to infertile disk flowers
Plants: robust, erect, perennial, 20"-40" tall, aromatic forb usually with no branches
Leaves: alternate, large, toothed; lower on long stalks, upper smaller and stalkless to clasping
Flowers: 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.
Fruits: black, dry seed without a fluffy pappus
Habitat: full sun; dry to moist; prairies, woods; in sandy, loamy soil
Conservation Status: Threatened
Plants: robust, erect, perennial, 20"-40" tall, aromatic forb usually with no branches
Leaves: alternate, large, toothed; lower on long stalks, upper smaller and stalkless to clasping
Flowers: 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.
Fruits: black, dry seed without a fluffy pappus
Habitat: full sun; dry to moist; prairies, woods; in sandy, loamy soil
Conservation Status: Threatened
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 8 WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin listed species including state and federal status, photos, etc. 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 Minnesota Dept. of Natural Resources: Rare Species Guide; description, conservation, photos, maps, etc. Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"
Merel R. Black
Mark Mittelstadt
Merel R. Black
Theodore S. Cochrane
Derek Anderson
Aaron Carlson
Derek Anderson
Theodore S. Cochrane
Derek Anderson
Theodore S. Cochrane
Derek Anderson
Kitty Kohout
Aaron_Carlson
John M. Schoeneker
Aaron_Carlson
Derek Anderson
Aaron_Carlson
Aaron_Carlson
Christopher Noll
Aaron_Carlson
Merel R. Black
