Family: Asteraceae
brown-eyed Susan, three-lobed coneflower
Merel R. Black
Emmet J. Judziewicz
Etymology: 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)
Plants: erect, biennial/perennial, 1'-5' tall, usually somewhat hairy forb
Leaves: sharply toothed or 3-parted, lower leaves widely oval, long-stalked, the upper leaves narrow with short or no stalk
Flowers: 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.
Fruits: dry seed with no fluffy pappus
Habitat: full to partial sun; wet to moderate moisture; disturbed sites, woods, prairies; in sandy, loamy soil
Conservation Status: Native
Plants: erect, biennial/perennial, 1'-5' tall, usually somewhat hairy forb
Leaves: sharply toothed or 3-parted, lower leaves widely oval, long-stalked, the upper leaves narrow with short or no stalk
Flowers: 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.
Fruits: dry seed with no fluffy pappus
Habitat: full to partial sun; wet to moderate moisture; disturbed sites, woods, prairies; in sandy, loamy soil
Conservation Status: Native
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 4, Wetland Indicator = FAC- 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 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
Emmet J. Judziewicz
Paul Drobot
Emmet J. Judziewicz
Hugh H. Iltis
Christopher Noll
Janice Stiefel
Aaron_Carlson
Merel R. Black
Paul Drobot
Aaron_Carlson
John M. Schoeneker
Aaron_Carlson
Aaron_Carlson
Aaron_Carlson
Aaron_Carlson
Aaron_Carlson
Janice Stiefel
Paul Drobot
Aaron_Carlson
