Robert W. Freckmann Herbarium
University of Wisconsin - Stevens Point

Vascular Plants

Plants of Wisconsin

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  Centaurea jacea L. image
Photographer: Emmet J. Judziewicz           

Emmet J. Judziewicz

Kurt Stüber

Steve C. Garske

Steve C. Garske
Family Asteraceae
Centaurea jacea L.
brown knapweed, brown-ray knapweed
Centaurea: ancient Greek plant-name, poetically associated with Chiron, the Centaur, but without wholly satisfactory explanation
jacea: old generic name
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Introduced - naturalized
Plant: erect, perennial, 8"-32" tall forb
Flower: head 1"-1 1/4" wide with purple disk flowers, loosely thistle-like, bracts (phyllaries) fringed with brownish "eyelashes"; inflorescence a solitary head at the ends of the branches; blooms June-Sept.
Leaf:usually either undivided or toothed; lower more than 1/3" wide; larger ones possibly with a few lobes
Habitat: fields, roadsides, disturbed areas
(Glossary)

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

Flora of North America (off site)
Synonyms 
There are no synonyms for this taxon.

Vascular Plants

Plants of Wisconsin

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