Taxon: Panicum amarum Elliott var. amarulum (Hitchc. & Chase) P. G. Palmer

Summary

Genus:

Panicum

Family:

Poaceae (alt. Gramineae)

Subfamily:

Panicoideae

Tribe:

Paniceae

Subtribe:

Panicinae

Nomen number:

103507

Place of publication:

Brittonia 27:149. 1975

Verified:

03/01/2004 ARS Systematic Botanists.

Accessions:

6 (5 active, 3 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

Panicum amarum Elliott (11 active accession[s])
Panicum amarum Elliott var. amarum (0 active accession[s])

Autonyms (not in current use), synonyms and invalid designations

Basionym
Panicum amarulum Hitchc. & Chase

Images (1 total. Click on image for more.)

Conservation Status

Reference(s)

Acevedo-Rodríguez, P. & M. T. Strong. Flora of the West Indies (on-line resource).
Alderson, J. & W. C. Sharp. 1995. Grass varieties in the United States, U.S.D.A. Agric. Handb. 170, rev. ed. CRC Press. Note: Revised version of AH 170
Aliscioni, S. S. et al. 2003. A molecular phylogeny of Panicum (Poaceae: Paniceae): tests of monophyly and phylogenetic placement within the Panicoideae. Amer. J. Bot. 90:796-821. Note: a member of section Virgata
Clewell, A. F. 1985. Guide to the vascular plants of the Florida panhandle
Davidse, G. et al., eds. 1994. Flora mesoamericana.
FNA Editorial Committee. 1993-. Flora of North America.
Huang, L.-K. et al. 2011. Genetic diversity of switchgrass and its relative species in Panicum genus using molecular markers. Biochem. Syst. & Ecol. 39:685-693.
Kartesz, J. T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. Note: = Panicum amarum Elliott
Lonard, R. I. & F. W. Judd. 2011. The biological flora of coastal dunes and wetlands: Panicum amarum S. Elliott and Panicum amarum S. Elliott var. amarulum (A.S. Hitchcock and M.A. Chase) P. Palmer. J. Coastal Res. 27:233-242.
Porcher, M. H. et al. Searchable World Wide Web Multilingual Multiscript Plant Name Database (MMPND) (on-line resource).
Triplett, J. K. et al. 2012. Five nuclear loci resolve the polyploid history of switchgrass (Panicum virgatum L.) and relatives. PLoS One 7(6): e38702.
Valdés-Reyna, J. et al. 2009. El género Panicum (Poaceae: Panicoideae) en el noreste de México. Bol. Soc. Bot. México 84:59-82. Note: superseded by Botanical Sciences
Wherry, E. T. et al. 1979. Atlas of the flora of Pennsylvania.
Wunderlin, R. P. 1982. Guide to the vascular plants of central Florida Note: = Panicum amarum Elliott
Zuloaga, F. O. et al. 2003. Catalogue of New World grasses (Poaceae): III. Subfamilies Panicoideae, Aristidoideae, Arundinoideae, and Danthonioideae. Contr. U.S. Natl. Herb. 46:311.

Common names

Language	Name	Alternate name	note	seq	Citation
English	bitter panic grass			1	Alderson, J. & W. C. Sharp. 1995. Grass varieties in the United States, U.S.D.A. Agric. Handb. 170, rev. ed. CRC Press. Note: Revised version of AH 170

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Northern America	Northeastern U.S.A.	United States	New Jersey		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northern Mexico	Mexico	Tamaulipas		Valdés-Reyna, J. et al. 2009. El género Panicum (Poaceae: Panicoideae) en el noreste de México. Bol. Soc. Bot. México 84:59-82. Note: superseded by Botanical Sciences
1	Native	Northern America	South-Central U.S.A.	United States	Texas		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Alabama	s.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Delaware		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Florida		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Georgia	s.e.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Louisiana	s.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Maryland	e.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Mississippi	s.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	North Carolina	e.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	South Carolina		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Virginia	e.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southern Mexico	Mexico	Campeche		Valdés-Reyna, J. et al. 2009. El género Panicum (Poaceae: Panicoideae) en el noreste de México. Bol. Soc. Bot. México 84:59-82. Note: superseded by Botanical Sciences
1	Native	Northern America	Southern Mexico	Mexico	Quintana Roo		Valdés-Reyna, J. et al. 2009. El género Panicum (Poaceae: Panicoideae) en el noreste de México. Bol. Soc. Bot. México 84:59-82. Note: superseded by Botanical Sciences
1	Native	Northern America	Southern Mexico	Mexico	Tabasco		Davidse, G. et al., eds. 1994. Flora mesoamericana.
1	Native	Northern America	Southern Mexico	Mexico	Yucatán		Davidse, G. et al., eds. 1994. Flora mesoamericana.
1	Native	Southern America	Caribbean	Bahamas			Acevedo-Rodríguez, P. & M. T. Strong. Flora of the West Indies (on-line resource).
1	Native	Southern America	Caribbean	Cuba			Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
1	Native	Southern America	Central America	Belize			Davidse, G. et al., eds. 1994. Flora mesoamericana.
1	Native	Southern America	Central America	Honduras		e.	Davidse, G. et al., eds. 1994. Flora mesoamericana.
2	Cultivated	Northern America		United States			Lonard, R. I. & F. W. Judd. 2011. The biological flora of coastal dunes and wetlands: Panicum amarum S. Elliott and Panicum amarum S. Elliott var. amarulum (A.S. Hitchcock and M.A. Chase) P. Palmer. J. Coastal Res. 27:233-242.

Native
Northern America

NORTHEASTERN U.S.A.: United States [New Jersey]
SOUTHEASTERN U.S.A.: United States [Alabama (s.), Delaware, Florida, Georgia (s.e.), Louisiana (s.), Maryland (e.), Mississippi (s.), North Carolina (e.), South Carolina, Virginia (e.)]
SOUTH-CENTRAL U.S.A.: United States [Texas]
NORTHERN MEXICO: Mexico [Tamaulipas]
SOUTHERN MEXICO: Mexico [Campeche, Quintana Roo, Tabasco, Yucatán]

Southern America

CARIBBEAN: Bahamas, Cuba
CENTRAL AMERICA: Belize, Honduras (e.)

Cultivated
Northern America

REGION: United States

Reference(s)

Acevedo-Rodríguez, P. & M. T. Strong. Flora of the West Indies (on-line resource).
Davidse, G. et al., eds. 1994. Flora mesoamericana.
FNA Editorial Committee. 1993-. Flora of North America.
Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
Lonard, R. I. & F. W. Judd. 2011. The biological flora of coastal dunes and wetlands: Panicum amarum S. Elliott and Panicum amarum S. Elliott var. amarulum (A.S. Hitchcock and M.A. Chase) P. Palmer. J. Coastal Res. 27:233-242.
Valdés-Reyna, J. et al. 2009. El género Panicum (Poaceae: Panicoideae) en el noreste de México. Bol. Soc. Bot. México 84:59-82. Note: superseded by Botanical Sciences

Economic Uses

Usage	Type	Note	Reference
Environmental	erosion control		Alderson, J. & W. C. Sharp. 1995. Grass varieties in the United States, U.S.D.A. Agric. Handb. 170, rev. ed. CRC Press. Note: Revised version of AH 170

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgstest.ars-grin.gov/gringlobal/taxon/taxonomydetail?id=103507. Accessed 10 May 2026.