Rudbeckia grandiflora var. grandiflora (Asteraceae) in Louisiana, U.S.A.

  • John Michael Kelley Walter Jacobs Nature Park
Keywords: State record, Louisiana, Coneflower, Bodcau

Abstract

The nominal variety of Rudbeckia grandiflora (Asteraceae) is recognized as occurring in Louisiana. A specimen recently collected by the author, plus older herbarium specimens, document this taxon’s occurrence in Bossier, Caddo, and Webster parishes. The habitats at the collection sites are discussed briefly and a rarity rank is proposed as the first step in the recognition of this taxon new for Louisiana.

References

California Soil Resources. 2019. https://casoilresource.lawr.ucdavis.edu. Accessed 17 Aug 2019.

Cronquist, A. 1980. Vascular flora of the southeastern United States. Volume I. Asteraceae. The University of North Carolina Press, Chapel Hill, North Carolina, U.S.A.

Gandhi, K.N. & R.D. Thomas. 1989. Asteraceae of Louisiana. Sida, Bot. Misc. No. 4.

NatureServe. 2019. NatureServe Explorer (http://explorer.natureserve.org, accessed 29 Oct 2019). Arlington, Virginia, U.S.A.

SERNEC Data Portal. 2019. http//:sernecportal.org/portal/index.php. Accessed on August 17.

Thomas, R.D. & C.M. Allen. 1996. Atlas of the vascular flora of Louisiana: Volume II: Dicotyledons, Acanthaceae – Euphorbiaceae. Louisiana Department of Wildlife and Fisheries, Baton Rouge, U.S.A.

Urbatsch, L.E. & P.B. Cox. 2006. Rudbeckia (Asteraceae: Heliantheae). In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 19+ vols. New York, U.S.A. and Oxford, UK. 21:43–45.

USDA, NRCS. 2019. The PLANTS Database (http://plants.usda.gov, 17 August 2019). National Plant Data Team, Greensboro, North Carolina, U.S.A.

Published
2020-07-15
How to Cite
Kelley, J. M. (2020). Rudbeckia grandiflora var. grandiflora (Asteraceae) in Louisiana, U.S.A. Journal of the Botanical Research Institute of Texas, 14(1), 147-148. https://doi.org/10.17348/jbrit.v14.i1.903