Rudbeckia triloba

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Rudbeckia triloba
Rudbeckia triloba2.JPG
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Rudbeckia
Species: R. triloba
Binomial name
Rudbeckia triloba

Rudbeckia triloba [1] (browneyed susan, brown-eyed susan, thin-leaved coneflower, three-leaved coneflower) is a plant native to the United States. It is sometimes grown in gardens, but it is usually seen in old fields or along roadsides.

It is a herbaceous biennial to weak perennial native to Central and Eastern United States. Height is 2–3 ft with a spread of 1.0 to 1.5 ft. The species needs full sun and medium water. It is easy to grow. Spent flowers should be removed to encourage additional bloom and/or to prevent any unwanted self-seeding. This plant is in part distinguished from black-eyed susan by having a more profuse bloom of smaller flowers that usually have fewer rays per flowerhead. The basal leaves are often trifoliate (three leaflets, sometimes each of the three also divided.)

See also[edit]