Rudbeckia hirta  
Family: Asteraceae
black-eyed Susan
Rudbeckia hirta image
Merel R. Black  
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'-3' tall, very hairy forb
Leaves: either entire or with fine teeth, lower leaves lance-like up to 1" wide and 5 times as long, the upper becoming more linear
Flowers: head 2"-3" wide; dark brown, domed disk 1/2"-3/4" wide; 8-21 yellow, 3/4"- 1 1/2" long rays, bracts (phyllaries) with coarse hairs; inflorescence with a long-stalked, solitary heads; blooms June-Oct.
Fruits: dry seed with no fluffy pappus
Habitat: full to partial sun; dry, moderate moisture to wet; prairies, meadows, roadsides; in sandy, loamy soil
Hazardous: Careful, this plant is hazardous!
Conservation Status: Native
Rudbeckia hirta image
Merel R. Black  
Rudbeckia hirta image
Merel R. Black  
Rudbeckia hirta image
Paul Drobot  
Rudbeckia hirta image
Robert R. Kowal