Rudbeckia grandiflora

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Rudbeckia grandiflora
Rudbeckia grandiflora var. alismifolia.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Rudbeckia
Species:
R. grandiflora
Binomial name
Rudbeckia grandiflora
(D. Don) J.F. Gmel. ex DC., 1836

Rudbeckia grandiflora, commonly called rough coneflower, [1] is a species of flowering plant in the family Asteraceae.

Contents

Description

Growing wild in Arkansas Rudbeckia grandiflora.jpg
Growing wild in Arkansas

It is a perennial from a woody base, growing to around 120 cm tall. It produces relatively large inflorescences, with 12-25 yellow ray flowers, each around 3–5 cm long. It blooms from late spring into summer. [2] [3]

Distribution

It is native to North America, where it is found primarily in the south-central United States, including a disjunct population in northwest Georgia. [4] [5] The other populations farther east, all small and isolated, are believed to have originated from human introductions.

Its typical natural habitat is in prairies and open woodlands. [2] [3]

Taxonomy

Two varieties are recognized: [4] [2]

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References

  1. USDA, NRCS (n.d.). "Rudbeckia grandiflora". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 24 January 2019.
  2. 1 2 3 Rudbeckia grandiflora Flora of North America
  3. 1 2 Diggs, George; Lipscomb, Barney; O'Kennon, Robert (1999). Flora of North Central Texas. Botanical Research Institute of Texas. p. 402.
  4. 1 2 Alan Weakley (2015). "Flora of the Southern and Mid-Atlantic States".
  5. "Rudbeckia grandiflora". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014. Retrieved 24 January 2019.