Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  Rudbeckia triloba L. var. triloba image
Photographer: Merel R. Black           

Emmet J. Judziewicz

Hugh H. Iltis

John M. Schoeneker

Merel R. Black

Christopher Noll

Paul Drobot

Paul Drobot

Paul Drobot

Janice Stiefel

Janice Stiefel
Family Asteraceae
Rudbeckia triloba L. var. triloba
brown-eyed Susan, three-lobed coneflower
Rudbeckia: named after the Swedish father and son who were professors of botany and predecessors of Linnaeus, O.J. Rudbeck (1630-1702) and O.O. Rudbeck (1660-1740)
triloba: tri for "3;" lobus for "lobes"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, biennial/perennial, 1'-5' tall, usually somewhat hairy forb
Flower: head 1" -1 3/4" wide; disk purple/brown, domed to oval 1/3"-1/2" wide; 6-13 yellow to orange rays 1/3"-3/4" long, bracts (phyllaries) without whitish hairs; inflorescence of several to many heads in branched clusters; blooms July-Oct.
Fruit:dry seed with no fluffy pappus
Leaf:sharply toothed or 3-parted, lower leaves widely oval, long-stalked, the upper leaves narrow with short or no stalk
Habitat: full to partial sun; wet to moderate moisture; disturbed sites, woods, prairies; in sandy, loamy soil

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

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

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