Paspalum boscianum

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Common name: bull crowngrass[1], bull paspalum[2]

Paspalum boscianum
Paspalum boscianum AFP.jpg
Photo by Guy Anglin hosted at the Atlas of Florida Plants
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida – Monocotyledons
Order: Poales
Family: Poaceae
Genus: Paspalum
Species: P. boscianum
Binomial name
Paspalum boscianum
Natural range of Paspalum boscianum from USDA NRCS Plants Database.

Taxonomic Notes

Synonyms: none.[3]

Varieties: none.[3]


P. boscianum is a coarse annual graminoid of the Poaceae family native to North America and Puerto Rico.[1] Its geniculate culms 3-9 dm tall with glabrous nodes and internodes. The blades are 25 cm long, 4-11 mm wide, and glabrous, with scarious margins. Ligules are 1-2 mm long. The axes of panicle branches broadly winged and the wings about as wide as the central portion. The plant has 2-11 racemes that are racemose, ascending, and 1.5-9 cm long. The suborbicular spikelets grow in 4 rows, reaching 2-1.2 mm broad.[4]


P. boscianum ranges from Maryland to Kentucky, and Texas, south through tropical America.[4]



P. boscianum proliferates in marshes, cypress domes, low fields, and ditches.[2] Specimens have been collected from drying loamy sands of secondary woods, burned pine-oak woodland, pond in pine barrens, dried pond bottom, stream bank, ditch bordering savanna, swale in slashpine, coastal hammock pond, shore of farm pond, swampy woods, and cypress pond.[5]


This species flowers from July through October.[3]

Fire ecology

Populations of Paspalum boscianum have been known to persist through repeated annual burning.[6]

Conservation, cultivation, and restoration

P. boscianum is listed as a species of special concern by the Kentucky State Nature Preserves Commission.[1]

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 USDA Plant Database
  2. 2.0 2.1 Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
  3. 3.0 3.1 3.2 Weakley, A.S. 2015. Flora of the southern and mid-atlantic states. Working Draft of 21 May 2015. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  4. 4.0 4.1 Radford, A. E., Ahles, H. E., & Bell, C. R. (1968). Manual of the vascular flora of the Carolinas. Chapel Hill: University of North Carolina Press.
  5. URL: Last accessed: June 2018. Collectors: Loran C. Anderson, A.H. Curtiss, R.K. Godfrey, R.A. Pursell, R.Kral, S. Mcdaniel, Andre Clewell, R.A. Norris, R. Komarek, Richard R. Clinebell II. States and counties: Florida (Leon, Baker, Jackson, Gadsden, Calhoun, Palm Beach, Franklin, Gulf, Gadsden, Jackson, Santa Rosa, Hernando, Escambia, Madison, Duval, Wakulla) Georgia (Thomas, Seminole)
  6. Platt, W.J., R. Carter, G. Nelson, W. Baker, S. Hermann, J. Kane, L. Anderson, M. Smith, K. Robertson. 2021. Unpublished species list of Wade Tract old-growth longleaf pine savanna, Thomasville, Georgia.