Eragrostis japonica

Family:POACEAE
Species:Eragrostis japonica (Thunberg) Trinius
Common Name:Pond Lovegrass
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:**
Category:Vascular
USDA Symbol:**
Plant Notes:Pond Lovegrass is an introduced herbaceous annual in the Grass family (Poaceae). It is native to the Old World tropics from Africa to Asia and Australia. In Alabama it can be found in the southern half of the state. Pond Lovegrass occurs in wet disturbed areas such as on the banks of rivers and streams, on the banks of ponds and lakes, and in wet roadside ditches. It usually occurs on disturbed sandy soil in full sun. Pond Lovegrass is a tufted annual with fibrous roots. The culms are erect or geniculate at the base, glabrous, and 1-3 feet in height. Leaf blades are flat and glabrous. The leaf sheath is loose and longer than the internodes. The ligules are fimbriate at the apex. Flowers are produced in spikes. The spikes are arranged in elongated, compressed panicles. The panicle branches are in whorls or pseudo-whorls. Individual spikelets are appressed, 4-8 flowered, and ovate in outline. The fruit is a grain. Eragrostis japonica belongs to a small group of closely related species with membranous ligules that have been treated as a separate genus (Diandrochloa De Winter).—A. Diamond
Taxonomic Notes:**
Status:Not Native, OBL (NWI)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyPOACEAE - Grass family
Genus Eragrostis
Species Eragrostis japonica (Thunberg) Trinius - Pond Lovegrass

Citation

Citation ERAGROSTIS JAPONICA (Thunberg) Trinius, Mem. Acad. Imp. Sci. St.-Petersbourg, Ser. 6, Sci. Math. 1: 405. 1831.
Basionym: Poa japonica Thunberg 1784.
Type: JAPAN

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Diandrochloa glomerata Diandrochloa glomerata (Walter) Burkart, Bol. Soc. Argent. Bot. 12: 287. 1968.Poa glomerata Walter 1788. 
Diandrochloa japonica Diandrochloa japonica (Thunberg) A. N. Henry, Bull. Bot. Surv. India 9: 290. 1968.Poa japonica Thunberg 1784. 
Diandrochloa diplachnoides Diandrochloa diplachnoides (Steudel) A. N. Henry, Bull. Bot. Surv. India 9: 290. 1968.Eragrostis diplachnoides Steudel 1854. 
Diandrochloa namaquensis Diandrochloa namaquensis (Nees von Esenbeck ex Schrader) De Winter, Bothalia 7: 388. 1960.Eragrostis namaquensis Nees von Esenbeck ex Schrader 1838.  
Eragrostis aturensis Eragrostis aturensis (Kunth) Trinius ex Steudel, Nomencl. Bot., ed. 2. 1: 562. 1840.Poa aturensis Kunth 1816. 
Eragrostis conferta Eragrostis conferta Trinius, Mém. Acad. Imp. Sci. St.-Petersbourg, Ser. 6, Sci. Math. 1: 409. 1831, nom. illegit.Poa conferta Elliott 1816, nom. illegit.; Poa glomerata Walter 1788. 
Eragrostis diplachnoides Eragrostis diplachnoides Steudel, Syn. Pl. Glumac. 1: 268. 1854.SUDAN: Without data, Kotschy 346 (holotype: P?; isotypes: K, L). 
Eragrostis elegans Eragrostis elegans Nees von Esenbeck, in Martius, Fl. Bras. Enum. Pl. 2: 510, 608. 1829.Poa brasiliensis Sprengel 1825, non Raddi 1823. 
Eragrostis elegans var. laxiflora Eragrostis elegans Nees von Esenbeck, var. laxiflora Arechavaleta, Anales Mus. Nac. Montevideo 1: 444. 1896. URUGUAY
Eragrostis hapalantha Eragrostis hapalantha Trinius, Mém. Acad. Imp. Sci. St.-Petersbourg, Ser. 6, Sci. Math. 1: 409. 1831. BRAZIL
Eragrostis interrupta Eragrostis interrupta (Lamarck) Döll, in Martius, Fl. Bras. 2(3): 157. 1878.Poa interrupta Lamarck 1791. 
Eragrostis interrupta var. parviflora Eragrostis interrupta (Lamarck) Döll, var. parviflora Döll, in Martius, Fl. Bras. 2(3): 158. 1878. BRAZIL: Goiás: Without data, Burchell s.n. (holotype: ?).
Eragrostis interrupta var. diplachnoides Eragrostis interrupta (Lamarck) Döll, var. diplachnoides (Steudel) Stapf, in Hooker f., Fl. Brit. India 7: 316. 1896 ("1897").Eragrostis diplachnoides Steudel 1854. 
Eragrostis interrupta var. laxiflora Eragrostis interrupta (Lamarck) Döll, var. laxiflora Döll, in Martius, Fl. Bras. 2(3): 158. 1878. BRAZIL
Eragrostis interrupta var. namaquensis Eragrostis interrupta (Lamarck) Döll, var. namaquensis (Nees von Esenbeck ex Schrader) T. Durand & Schinz, Consp. Fl. Afr. 5: 884. 1894.Eragrostis namaquensis Nees von Esenbeck ex Schrader 1838. 
Eragrostis japonica var. interrupta Eragrostis japonica (Thunberg) Trinius, var. interrupta (Lamarck) Henrard, Blumea 3: 424. 1940.Poa interrupta Lamarck 1791. 
Eragrostis namaquensis Eragrostis namaquensis Nees von Esenbeck ex Schrader, Linnaea 12: 452. 1838. SOUTH AFRICA: Namaqualand, banks of the Orange River, s.d., Drège 2569 (holotype: B; isotypes: K, P, PRE(fragm)).
Eragrostis namaquensis var. diplachnoides Eragrostis namaquensis Nees von Eesenbeck ex Schrader, var. diplachnoides (Steudel) Clayton, Kew Bull. 25; 251. 1971.Eragrostis diplachnoides Steudel 1854. 
Eragrostis pallida Eragrostis pallida Vasey, Contr. U.S. Natl. Herb. 1: 285. 1893. MEXICO: Colima: Colima, 9 Jan-6 Feb 1891, Palmer 1268 (holotype: US; isotypes: NY 2 shts; US).
Eragrostis tenella var. japonica Eragrostis tenella (Linnaeus) Palisot de Beauvois ex Roemer & Schultes, var. japonica (Thunberg) Roemer & Schultes, Syst. Veg. 2: 576. 1817.Poa japonica Thunberg 1784. 
Glyceria micrantha Glyceria micrantha Steudel, Syn. Pl. Glumac. 1: 287. 1854, nom. illegit.Poa sporoboloides A. Richard 1850. 
Megastachya aturensis Megastachya aturensis (Kunth) Roemer & Schultes, Syst. Veg. 2: 587. 1817.Poa aturensis Kunth 1816 
Megastachya glomerata Megastachya glomerata (Walter) Schultes, Mant. 2: 327. 1824.Poa glomerata Walter 1788. 
Poa aturensis Poa aturensis Kunth, in Humboldt et al., Nov. Gen. Sp. 1: 161. 1816. VENEZUELA: Amazonas: "prope Cataractas Aturensium", Apr, Humboldt & Bonpland s.n. (holotype: P; isotypes: BAA(fragm), US(fragm)).
Poa brasiliensis Poa brasiliensis Sprengel, Syst. Veg. 1: 342. 1825, non Raddi 1823. BRAZIL: Without data, Herb. Hoffmannsegg s.n. (holotype: B-W).
Poa conferta Poa conferta Elliott, Sketch, Bot. S. Carolina 1: 158. 1816, nom. illegit.Poa glomerata Walter 1788. 
Poa glomerata Poa glomerata Walter, Fl. Carol. 80. 1788. SOUTH CAROLINA
Poa interrupta Poa interrupta Lamarck, Tabl. Encycl. 1: 185. 1791. INDIA: Without data, Sonnerat s.n. (holotype: P; isotypes: BAA, US(fragm)).
Poa japonica Poa japonica Thunberg, Fl. Jap. 51. 1784. JAPAN
Poa sporoboloides Poa sporoboloides A. Richard, Tent. Fl. Abyss. 2: 426. 1850. ETHIOPIA
Poa walteri Poa walteri Kunth, Revis. Gramin. 116. 1829, nom. illegit.Poa glomerata Walter 1788. 
Roshevitzia diplachnoides Roshevitzia diplachnoides (Steudel) Tzvelev, Novosti Sist. Vyssh. Rast. 7: 50. 1971 ("1970").Eragrostis diplachnoides Steudel 1854. 
Roshevitzia glomerata Roshevitzia glomerata (Walter) Rzvelev, Novosti Sist. Vyssh. Rast. 7: 50. 1971 ("1970").Poa glomerata Walter 1788. 
Roshevitzia japonica Roshevitzia japonica (Thunberg) Tzvelev, Novosti Sist. Vyssh. Rast. 7: 50. 1971 ("1970").Poa japonica Thunberg 1784. 
Sporobolus confertiflorus Sporobolus confertiflorus A. Richard, Tent. Fl. Abyss. 2: 397. 1850.ETHIOPIA 
Sporobolus verticillatus Sporobolus verticillatus Nees von Esenbeck, Hooker's J. Bot. Kew Gard. Misc. 2: 101. 1850. PHILIPPINES: Laguna, s.d., Cuming 545 (holotype: CGE; isotypes: BM, BO, K, L, P).
Vilfa confertiflora Vilfa confertiflora (A. Richard) Steudel, Syn. Pl. Glumac. 1: 155. 1854.Sporobolus confertiflorus A. Richard 1850. 
Eragrostis glomerata Eragrostis glomerata (Walter) L. H. Dewey, in J. M. Coulter, Contr. U.S. Natl. Herb. 2: 543. 1894.Poa glomerata Walter 1788. 

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Autauga, Choctaw, Clarke, Dallas, Houston, Lowndes, Macon, Mobile, Monroe, Montgomery, Washington, Wilcox

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AUA, JSU, NY, TROY, UNA, UWAL

Range of years during which specimens were collected: 1970 - 1978

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
UWAL0032837 Washington 27 Jul 2012 England, J. Kevin
3814
UWAL
Eragrostis japonica (Thunberg) Trinius
JSU101586 Montgomery 10 Oct 1970 R. Kral
41587
JSU
Eragrostis japonica (Thunberg) Trinius
UNA00004018 Dallas 05 Aug 1978 John H. Wiersema
414
UNA
Eragrostis japonica (Thunb.) Trin.
AUA000024464 Choctaw 13 AUG 2007 SPAULDING, DANIEL D.
12734
AUA
ERAGROSTIS JAPONICA (THUNB.) TRIN.
UNA00004038 Lowndes 04 Sep 1977 Robert R. Haynes
6373
UNA
Eragrostis japonica (Thunb.) Trin.
UNA00004043 Autauga s.d. Eugene A. Smith
s.n.
UNA
Eragrostis japonica (Thunb.) Trin.
JSU101584 Clarke 13 Sep 1997 R. D. Whetstone
18867
JSU
Eragrostis japonica (Thunberg) Trinius
TROY000012197 Monroe 17 Sep 2007 Alvin R. Diamond
188115
TROY
Eragrostis japonica (Thunberg) Trinius
UNA00004028 Montgomery 17 Aug 1978 L. J. Davenport
750
UNA
Eragrostis japonica (Thunb.) Trin.
JSU101585 Clarke 13 Sep 1997 R. D. Whetstone
18867
JSU
Eragrostis japonica (Thunberg) Trinius
TROY000012185 Houston 19 Nov 1992 Alvin R. Diamond
8504
TROY
Eragrostis japonica (Thunberg) Trinius
UNA00004048 Mobile _-_-1896 Charles Mohr
s.n.
UNA
Eragrostis japonica (Thunb.) Trin.
UNA00004053 Montgomery 10 Oct 1970 R. Kral
41587
UNA
Eragrostis japonica (Thunb.) Trin.
TROY000034616 Montgomery 01 Nov 2007 Alvin R. Diamond
18578
TROY
Eragrostis japonica (Thunberg) Trinius
UWAL0010731 Montgomery 01 Nov 2007 Diamond, Alvin R.
18578
UWAL
Eragrostis japonica (Thunberg) Trinius
UWAL0001816 Houston 22 Oct 2010 Diamond, A.R.
21670
UWAL
Eragrostis japonica (Thunb.) Trin.
AUA000017237 Macon 8 AUG 1960 BANKS, DONALD J.
319
AUA
ERAGROSTIS JAPONICA (THUNB.) TRIN.
AUA000017235 Dallas 3 AUG 1976 SESSLER, ANN H.
275
AUA
ERAGROSTIS JAPONICA (THUNB.) TRIN.
UNA00004023 Wilcox 27 Sep 1978 Robert R. Haynes
6971
UNA
Eragrostis japonica (Thunb.) Trin.
TROY000029322 Choctaw 13 Aug 2007 Daniel D. Spaulding
12734
TROY
Eragrostis japonica (Thunberg) Trinius
AUA000017234 Choctaw 23 AUG 1995 CROUCH, VIRGINIA E.
1456
AUA
ERAGROSTIS JAPONICA (THUNB.) TRIN.
UNA00004033 Dallas 18 Aug 1978 John H. Wiersema
495
UNA
Eragrostis japonica (Thunb.) Trin.
UWAL0008971 Choctaw 13 Aug 2007 Spaulding, Daniel D.
12734
UWAL
Eragrostis japonica (Thunb.) Trin.
NY1683349 s.d. Samuel B. Buckley
s.n.
NY
Eragrostis japonica (Thunberg) Trinius
AUA000017236 Houston 19 NOV 1992 DIAMOND, JR., ALVIN R.
8504
AUA
ERAGROSTIS JAPONICA (THUNB.) TRIN.
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