Page author: Don Knoke
Rudbeckia laciniata
green-headed black-eyed Susan, tall black-eyed Susan

Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to Washington, otherwise Rocky Mountains east to the Atlantic Coast.

Habitat: Streambanks and other moist, disturbed places.

Flowers: July-September

Origin: Introduced from further east in North America

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies, beetles, wasps


Perennial from a coarse, woody base, the stems up to 2 m. tall, glabrous and often glaucous.


Leaves alternate, large, petiolate, usually pinnatifid with broad segments.


Heads large, the yellow or grayish disk 1-2 cm. wide; rays 6-16, drooping, yellow, 3-6 cm. long; disk flowers numerous, fertile; receptacle hemispheric, chaffy throughout, its bracts blunt, gray-tipped; pappus a short crown.



Accepted Name:
Rudbeckia laciniata L.
Publication: Sp. Pl. 2: 906. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Rudbeckia laciniata in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Rudbeckia laciniata checklist entry.

OregonFlora: Rudbeckia laciniata information.

E-Flora BC: Rudbeckia laciniata atlas page.

CalPhotos: Rudbeckia laciniata photos.

USDA Plants: Rudbeckia laciniata information.

3 photographs:
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