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Rudbeckia hirta var. hirta

Rudbeckia hirta L. var. hirta

Blackeyed Susan, Black-eyed Susan, Brown-eyed Susan

Asteraceae (Aster Family)

Synonym(s): Rudbeckia amplectens, Rudbeckia brittonii, Rudbeckia hirta var. brittonii, Rudbeckia hirta var. monticola, Rudbeckia monticola


USDA Native Status: L48 (N), CAN (N)


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Plant Characteristics

Duration: Annual , Perennial , Biennial
Habit: Herb
Size Notes: Up to about 3 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Red , Orange , Yellow
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov
Bloom Notes: Uniformly yellow to yellow-orange or with a basal maroon splotch.


USA: AL , AR , CT , GA , IL , IN , KY , MA , MD , ME , MI , MS , NC , NH , NY , OH , PA , SC , TN , VA , VT , WV
Canada: ON

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Rudbeckia hirta var. hirta in USDA Plants
FNA: Find Rudbeckia hirta var. hirta in the Flora of North America (if available)
Google: Search Google for Rudbeckia hirta var. hirta


Record Modified: 2022-11-03
Research By: CBR

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