Andropogon arctatus

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Andropogon arctatus
Andr arct.jpg
Photo by Ann Johnson, Atlas of Florida Vascular Plants
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida – Monocotyledons
Order: Poales
Family: Poaceae ⁄ Gramineae
Genus: Andropogon
Species: A. arctatus
Binomial name
Andropogon arctatus
ANDR ARCT dist.jpg
Natural range of Andropogon arctatus from USDA NRCS Plants Database.

Common names: Florida bluestem; Pineland bluestem

Taxonomic notes

Synonyms: None.[1]

Varieties: None.[1]


Andropogon arctatus is a perennial[2] grass growing up to 1.5 m tall. The leaves are long and narrow and tend to curl. The spikelets are numerous and have paired racemes that grow from the sheaths. The flowers are densely covered with tawny hairs. The seeds are wind-dispersed.[3]


Andropogon arctatus is occasionally found in northern and central peninsular Florida and the central and western regions of the panhandle.[4] The plant is endemic to Florida and Alabama, but there are records showing that this species was found in North Carolina as well.[5]



This species grows scattered throughout its habitat but is very abundant.[6] It is found in moist, sunny, low grass-sedge clearings and open pine flatwood and savanna communities[7] as well as pinelands.[5] It is found in dry to wet loamy sands and sand pine scrub environments.[4][6] It can also be found in seepage wetlands like pitcher plant bogs or wet pine savannas.[3]

Andropogon arctatus is one of the indicator grass-species for the understory vegetation of Florida’s panhandle seepage savannas.[8]

Associated species include Pinus palustris, Pinus elliottii, Aristida stricta, Hypericum chapmanii, Ilex myrtifolia,[6] Quercus nigra, Quercus minima, Quercus elliottii, Magnolia virginiana, Ilex glabra, Clethra alnifolia var. tomentosa, Gaylussacia tomentosa, Vaccinium myrsinites, Kalmia hirsuta, Serenoa repens, Myrica cerifera var. pumila, other Andropogon species, Schizachyrium sp., Anthaenantia rufa, Panicum rigidulum, Panicum verrucosum, and Aristida species.


Andropogon arctatus has been observed flowering from October to November.[7][9] It has been observed fruiting from October through November.[6]

Seed dispersal

The plumed seeds are wind-dispersed.[3]

Fire ecology

It is maintained by fire.[7] Flowers in the fall after a fire event has occurred that same year.annjohnson[10]

Conservation, cultivation, and restoration

Is listed as vulnerable.[3]

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 Weakley, A.S. 2020. Flora of the Southeastern United States. Edition of 20 October 2020. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  2. Hall, David Walter (1978). “The Grasses of Florida.” University of Florida – Dissertation. 442. Print.
  3. 3.0 3.1 3.2 3.3 Nature Serve. (2015) “NatureServe Explorer: An online encyclopedia of life [web application].” Version 7.1. NatureServe, Arlington, Virginia. Available (Accessed: March 29, 2016 ).
  4. 4.0 4.1 Wunderlin, Richard P. and Bruce F. Hansen (2003). “Guide to the Vascular Plants of Florida.” Second edition. University Press of Florida: Gainesville/Tallahassee/Tampa/Boca Raton/Pensacola/Orlando/Miami/Jacksonville/Ft. Myers. 177. Print.
  5. 5.0 5.1 Weakley, Alan S. (2015). "Flora of the Southern and Mid-Atlantic States: working draft". University of NCU. 354. Print
  6. 6.0 6.1 6.2 6.3 Florida State University Robert K. Godfrey Herbarium database. URL: Last accessed: June 2014. Collectors: Robert K. Godfrey, Ann F. Johnson, Debbie White, Loran C. Anderson, A. F. Clewell, Christopher Campbell, Angus Gholson, Dennis Hardin, and Ann F. Johnson. States and Counties: Florida: Franklin, Liberty, Jackson, Gulf, Bay, Leon, and Calhoun. Georgia: Liberty.
  7. 7.0 7.1 7.2 Kral, R. (1983). "Andropogon arctatus Chapm. A report on some rare, threatened or endangered forest-related vascular plants of the South." Atlanta, GA, USDA Forest Service, Print. 183: 40-43.
  8. Carr, Susan C., Kevin M. Robertson, and Robert K. Peet (2010). “A Vegetation Classification of Fire-Dependent Pinelands of Florida.” Castanea 75(2):153-189.
  9. Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. Accessed: 19 MAY 2021
  10. Ann Johnson black creek bog phenological data 1993-2015