Rudbeckia triloba

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Campanulids
Ordo: Asterales

Familia: Asteraceae
Subfamilia: Asteroideae
Tribus: Heliantheae
Subtribus: Rudbeckiinae
Genus: Rudbeckia
Sectio: R. sect. Rudbeckia
Species: Rudbeckia triloba
Varietas: R. t. var. pinnatiloba – R. t. var. rupestris
Name

Rudbeckia triloba L., 1753.
Synonyms

Centrocarpha aristata (Pursh) D. Don
Centrocarpha triloba (L.) D.Don
Peramibus hirtus Rafin.
Rudbeckia aristata Herb. Banks ex Pursh
Rudbeckia beadlei Small
Rudbeckia biennis Chapm. ex Torr. & A. Gray
Rudbeckia scabra Cav.
Rudbeckia triloba var. beadlei (Small) Fern.

Distribution
Native distribution areas:

Continental: Northern America
Canada (Ontario, Quebec), USA (Alabama, Arkansas, Colorado, Connecticut, Delaware, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas, Utah, Vermont, Virginia, West Virginia, Wisconsin)

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References

Linnaeus, C. 1753. Species Plantarum 1: 907.

Links

International Plant Names Index. 2018. Rudbeckia triloba. Published online. Accessed: Feb. 12 2018.
The Plant List 2013. Rudbeckia triloba in The Plant List Version 1.1. Published on the internet. Accessed: 2018 Feb. 12.
Tropicos.org 2018. Rudbeckia triloba. Missouri Botanical Garden. Published on the internet. Accessed: 2018 Feb. 12.
Hassler, M. 2018. Rudbeckia triloba. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2018. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2018 Feb. 12. Reference page.
USDA, ARS, Germplasm Resources Information Network. Rudbeckia triloba in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 07-Oct-06.

Vernacular names
English: Three-lobed coneflower, browneyed Susan, branched coneflower

Rudbeckia triloba,[1] the browneyed or brown-eyed susan, thin-leaved coneflower or three-leaved coneflower,[2] is a species of flowering plant in the daisy family Asteraceae, native to the United States. It is often seen in old fields or along roadsides. It is also cultivated as an ornamental.

It is a short-lived herbaceous perennial found in the Central and Eastern United States. Height is 2–3 ft (60–90 cm) with a spread of 1.0 to 1.5 ft (30 to 45 cm). The species requires full sun and moist soil. It is easy to grow. Spent flowers should be removed to encourage additional bloom, prevent any unwanted self-seeding, or both. This species usually has smaller flowerheads, more flowerheads per plant, and fewer ray flowers per flowerhead than Rudbeckia hirta. Rudbeckia triloba basal leaves are often trifoliate (three leaflets, sometimes each of the three also divided).

In cultivation in the UK, Rudbeckia triloba has gained the Royal Horticultural Society’s Award of Garden Merit.[3][4]
See also

Rudbeckia hirta

References

USDA, NRCS (n.d.). "Rudbeckia triloba". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team.
"Rudbeckia triloba". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA).
"RHS Plantfinder - Rudbeckia triloba". Retrieved 11 October 2018.
"AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 93. Retrieved 11 October 2018.