Taxon: Eragrostis japonica (Thunb.) Trin.

Summary

Genus:

Eragrostis

Family:

Poaceae (alt. Gramineae)

Subfamily:

Chloridoideae

Tribe:

Eragrostideae

Subtribe:

Eragrostidinae

Nomen number:

15261

Place of publication:

Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. 6, Sci. Math. 1(4):405. 1830

Verified:

09/12/2000 ARS Systematic Botanists.

Accessions:

5 (3 active, 1 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

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

Basionym
Poa japonica Thunb.

Heterotypic Synonym(s)


Diandrochloa namaquensis (Nees ex Schrad.) De Winter
Eragrostis glomerata (Walter) L. H. Dewey
Eragrostis interrupta (Lam.) Döll
Eragrostis elegans Nees
Poa glomerata Walter
Poa interrupta Lam.
Eragrostis conferta (Elliott) Trin.
Eragrostis namaquensis Nees ex Schrad.
Eragrostis diarrhena (Schult. & Schult. f.) Steud.
Poa diarrhena Schult. & Schult. f.
Eragrostis diplachnoides Steud.

Images (6 total. Click on image for more.)

Conservation Status

Reference(s)

Bor, N. L. 1960. The grasses of Burma, Ceylon, India, and Pakistan.
Burkill, H. M. 1985-2004. The useful plants of west tropical Africa.
Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
Dassanayake, M. D. & F. R. Fosberg, eds. 1980-. A revised handbook to the flora of Ceylon.
Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
Exell, A. W. et al., eds. 1960-. Flora zambesiaca.
FNA Editorial Committee. 1993-. Flora of North America.
Görts-van Rijn, A. R. A., ed. 1986-. Flora of the Guianas.
Hara, H. et al. 1978-1982. An enumeration of the flowering plants of Nepal.
Harling, G. & B. Sparre, eds. 1973-. Flora of Ecuador.
Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000
Jørgensen, P. M. & S. León-Yánez, eds. 1999. Catalogue of the vascular plants of Ecuador. Monogr. Syst. Bot. Missouri Bot. Gard. 75
Koyama, T. 1987. Grasses of Japan and its neighboring regions
Lazarides, M. 1980. The tropical grasses of Southeast Asia
Nasir, E. & S. I. Ali, eds. 1970-. Flora of [West] Pakistan.
Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
Porcher, M. H. et al. Searchable World Wide Web Multilingual Multiscript Plant Name Database (MMPND) (on-line resource).
Renvoize, S. A. 1984. The grasses of Bahia
Renvoize, S. A. 1998. Gramineas de Bolivia
Shukla, U. 1996. Grasses of north-eastern India
Thulin, M., ed. 1993-. Flora of Somalia.
Veldkamp, J. F. 2002. Revision of Eragrostis (Gramineae, Chloridoideae) in Malesia. Blumea 47:176.
Zohary, M. & N. Feinbrun-Dothan. 1966-. Flora palaestina.
Zuloaga, F. O. et al. 1994. Catálogo de la familia Poaceae en la República Argentina. Monogr. Syst. Bot. Missouri Bot. Gard. 47

Common names

Language	Name	seq	Citation
English	Japanese love grass	1	Burkill, H. M. 1985-2004. The useful plants of west tropical Africa.
English	pond love grass	1	FNA Editorial Committee. 1993-. Flora of North America.
Japanese Rōmaji	kogome-kaze-kusa	2	Koyama, T. 1987. Grasses of Japan and its neighboring regions

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Africa	East Tropical Africa	Kenya
1	Native	Africa	East Tropical Africa	Tanzania
1	Native	Africa	East Tropical Africa	Uganda
1	Native	Africa	Northeast Tropical Africa	Ethiopia			Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000
1	Native	Africa	Northeast Tropical Africa	Somalia			Thulin, M., ed. 1993-. Flora of Somalia.
1	Native	Africa	Northeast Tropical Africa	Sudan
1	Native	Africa	Northern Africa	Algeria			Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
1	Native	Africa	Northern Africa	Egypt
1	Native	Africa	Northern Africa	Libya			Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
1	Native	Africa	South Tropical Africa	Angola
1	Native	Africa	South Tropical Africa	Malawi			Exell, A. W. et al., eds. 1960-. Flora zambesiaca.
1	Native	Africa	South Tropical Africa	Mozambique			Exell, A. W. et al., eds. 1960-. Flora zambesiaca.
1	Native	Africa	South Tropical Africa	Zambia			Exell, A. W. et al., eds. 1960-. Flora zambesiaca.
1	Native	Africa	South Tropical Africa	Zimbabwe			Exell, A. W. et al., eds. 1960-. Flora zambesiaca.
1	Native	Africa	Southern Africa	Botswana			Exell, A. W. et al., eds. 1960-. Flora zambesiaca.
1	Native	Africa	Southern Africa	Namibia
1	Native	Africa	Southern Africa	South Africa	Cape Province
1	Native	Africa	Southern Africa	South Africa	KwaZulu-Natal
1	Native	Africa	Southern Africa	South Africa	Transvaal
1	Native	Africa	West Tropical Africa	Côte D'Ivoire
1	Native	Africa	West Tropical Africa	Gambia
1	Native	Africa	West Tropical Africa	Ghana
1	Native	Africa	West Tropical Africa	Guinea
1	Native	Africa	West Tropical Africa	Guinea-Bissau
1	Native	Africa	West Tropical Africa	Mali
1	Native	Africa	West Tropical Africa	Niger
1	Native	Africa	West Tropical Africa	Nigeria
1	Native	Africa	West Tropical Africa	Senegal
1	Native	Africa	West Tropical Africa	Sierra Leone
1	Native	Africa	West Tropical Africa	Togo
1	Native	Africa	West-Central Tropical Africa	Cameroon
1	Native	Africa	West-Central Tropical Africa	Democratic Republic of the Congo
1	Native	Africa	Western Indian Ocean	Madagascar
1	Native	Asia-Temperate	China	China	Anhui Sheng		Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
1	Native	Asia-Temperate	China	China	Guangdong Sheng		Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
1	Native	Asia-Temperate	China	China	Hubei Sheng		Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
1	Native	Asia-Temperate	China	China	Jiangxi Sheng		Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
1	Native	Asia-Temperate	China	China	Yunnan Sheng		Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
1	Native	Asia-Temperate	China	China	Zhejiang Sheng		Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
1	Native	Asia-Temperate	Eastern Asia	Japan	Honshu		Koyama, T. 1987. Grasses of Japan and its neighboring regions
1	Native	Asia-Temperate	Eastern Asia	Japan	Kyushu		Koyama, T. 1987. Grasses of Japan and its neighboring regions
1	Native	Asia-Temperate	Eastern Asia	Japan	Ryukyu Islands		Koyama, T. 1987. Grasses of Japan and its neighboring regions
1	Native	Asia-Temperate	Eastern Asia	Japan	Shikoku		Koyama, T. 1987. Grasses of Japan and its neighboring regions
1	Native	Asia-Temperate	Eastern Asia	Taiwan
1	Native	Asia-Temperate	Western Asia	Iran
1	Native	Asia-Temperate	Western Asia	Iraq
1	Native	Asia-Temperate	Western Asia	Israel			Zohary, M. & N. Feinbrun-Dothan. 1966-. Flora palaestina.
1	Native	Asia-Temperate	Western Asia	Jordan			Zohary, M. & N. Feinbrun-Dothan. 1966-. Flora palaestina.
1	Native	Asia-Tropical	Indian Subcontinent	India			Shukla, U. 1996. Grasses of north-eastern India
1	Native	Asia-Tropical	Indian Subcontinent	Nepal			Hara, H. et al. 1978-1982. An enumeration of the flowering plants of Nepal.
1	Native	Asia-Tropical	Indian Subcontinent	Pakistan			Nasir, E. & S. I. Ali, eds. 1970-. Flora of [West] Pakistan.
1	Native	Asia-Tropical	Indian Subcontinent	Sri Lanka			Dassanayake, M. D. & F. R. Fosberg, eds. 1980-. A revised handbook to the flora of Ceylon.
1	Native	Asia-Tropical	Indo-China	Indochina
1	Native	Asia-Tropical	Indo-China	Thailand
1	Native	Asia-Tropical	Malesia	Indonesia
1	Native	Asia-Tropical	Malesia	Malaysia
1	Native	Europe	Eastern Europe	Russian Federation	Astrakhan		Skvortsov, A. K., ed. 2006. Flora of the Lower Volga region 1:187-188. Note: lists as Eragrostis diarrhena (Schult. et Schult. f.) Steud.
4	Naturalized	Northern America		Mexico			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Northern America	North-Central U.S.A.	United States	Missouri	s.e.	FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	North-Central U.S.A.	United States	Oklahoma	s.e.	FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	South-Central U.S.A.	United States	Texas		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Alabama		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Arkansas		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Florida		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Georgia	s.w.	FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Louisiana		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Mississippi		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Tennessee	s.w.	FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Southern America	Brazil	Brazil			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Caribbean	West Indies			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Central America	Costa Rica			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Central America	El Salvador			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Central America	Guatemala			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Central America	Honduras			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Northern South America	Guyana			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Northern South America	Venezuela			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Southern South America	Argentina			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Southern South America	Paraguay			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Southern South America	Uruguay			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Western South America	Bolivia			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Western South America	Ecuador			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
4	Naturalized	Southern America	Western South America	Peru			Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
6	Other					exact native range obscure

Native
Africa

NORTHERN AFRICA: Algeria, Egypt, Libya
NORTHEAST TROPICAL AFRICA: Ethiopia, Sudan, Somalia
EAST TROPICAL AFRICA: Kenya, Tanzania, Uganda
WEST-CENTRAL TROPICAL AFRICA: Cameroon, Democratic Republic of the Congo
WEST TROPICAL AFRICA: Côte D'Ivoire, Ghana, Guinea, Gambia, Guinea-Bissau, Mali, Niger, Nigeria, Senegal, Sierra Leone, Togo
SOUTH TROPICAL AFRICA: Angola, Mozambique, Malawi, Zambia, Zimbabwe
SOUTHERN AFRICA: Botswana, Namibia, South Africa [Cape Province, KwaZulu-Natal, Transvaal]
WESTERN INDIAN OCEAN: Madagascar

Asia-Temperate

WESTERN ASIA: Iran, Iraq, Israel, Jordan
CHINA: China [Anhui Sheng, Guangdong Sheng, Hubei Sheng, Jiangxi Sheng, Yunnan Sheng, Zhejiang Sheng]
EASTERN ASIA: Japan [Honshu, Kyushu, Ryukyu Islands, Shikoku], Taiwan

Asia-Tropical

INDIAN SUBCONTINENT: India, Sri Lanka, Nepal, Pakistan
INDO-CHINA: Indochina, Thailand
MALESIA: Indonesia, Malaysia

Europe

EASTERN EUROPE: Russian Federation [Astrakhan]

Naturalized
Northern America

NORTH-CENTRAL U.S.A.: United States [Missouri (s.e.), Oklahoma (s.e.)]
SOUTHEASTERN U.S.A.: United States [Alabama, Arkansas, Florida, Georgia (s.w.), Louisiana, Mississippi, Tennessee (s.w.)]
SOUTH-CENTRAL U.S.A.: United States [Texas]
REGION: Mexico

Southern America

CARIBBEAN: West Indies
CENTRAL AMERICA: Costa Rica, Guatemala, Honduras, El Salvador
NORTHERN SOUTH AMERICA: Guyana, Venezuela
BRAZIL: Brazil
WESTERN SOUTH AMERICA: Bolivia, Ecuador, Peru
SOUTHERN SOUTH AMERICA: Argentina, Paraguay, Uruguay

Other (exact native range obscure)

Reference(s)

Chinese Academy of Sciences. 1959-. Flora reipublicae popularis sinicae.
Dassanayake, M. D. & F. R. Fosberg, eds. 1980-. A revised handbook to the flora of Ceylon.
Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
Exell, A. W. et al., eds. 1960-. Flora zambesiaca.
FNA Editorial Committee. 1993-. Flora of North America.
Hara, H. et al. 1978-1982. An enumeration of the flowering plants of Nepal.
Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000
Koyama, T. 1987. Grasses of Japan and its neighboring regions
Nasir, E. & S. I. Ali, eds. 1970-. Flora of [West] Pakistan.
Peterson, P. M. et al. 2001. Catalogue of New World grasses (Poaceae): II. Subfamily Chloridoideae. Contr. U.S. Natl. Herb. 41:95.
Shukla, U. 1996. Grasses of north-eastern India
Skvortsov, A. K., ed. 2006. Flora of the Lower Volga region 1:187-188. Note: lists as Eragrostis diarrhena (Schult. et Schult. f.) Steud.
Thulin, M., ed. 1993-. Flora of Somalia.
Zohary, M. & N. Feinbrun-Dothan. 1966-. Flora palaestina.

Economic Uses

Usage	Type	Note	Reference
Weed			Burkill, H. M. 1985-2004. The useful plants of west tropical Africa.

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=15261. Accessed 15 April 2026.