Eclipta prostrata (L.) L., Asteraceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Eclipta alba (L.) Hassk.; Eclipta erecta L.; Eclipta punctata L.; Verbesina alba L.; Verbesina prostrata L.

Common name(s): [more details]

Chamorro: titima

Chinese: li chang

Chuukese: soopal

English: eclipta, false daisy, swamp daisy, white eclipta, white heads, white twinheads

Fijian: colulu, tamandu, tamudi, tamudu, tholulu, tumandu, tumundi

Filipino: higis manok

French: éclipte blanche, éclipte droite

Japanese: takasaburo

Korean: hanryeoncho

Mangarevan: kaka keka meka

Maori (Cook Islands): miri mapua, pītōrea

Palauan: deberebelela tengadidik

Pohnpeian: tuhke wah duwehte wahn pwudeniap

Spanish: anisillo, florcita, hierba de tajo, yerba de tago, yerba de tajo

Habit:  herb

Description:  "Strigose, branching, accumbent to erect or prostrate, node-rooting annual herb; leaves lanceolate, elliptic, or oblong, acute-acuminate, acute at base, subsessile, subtrinerved, entire or serrulate, pilose, mostly 2-10 (-15) cm long and 1-4 cm wide; heads terminal and axillary, semiglobose, to 1 cm wide, pedunculate, several to many together, heterogamous; peduncle to 7 cm long; ray-florets 1-2-seriate; involucre of ovate, acute, appressed-pubescent bracts about 6 mm long; receptacle convex, paleaceous; chaffy bracts linear; disc-florets with 4-5-fid corolla; ligules 2.5-3 mm long, entire or bifid; ray-florets pistillate, disc-florets perfect; anthers apically blunt, basally slightly sagittate; style-branches obtuse; achenes of ray-florets 3-angled, of disc-florets 4-angled, all tuberculate, black, glabrous except for a few apical hairs, depressed-truncate at apex, with 1-3 minute marginal teeth, about 2.8 mm long, marginally ribbed"  (Stone, 1970; pp. 584-585).

Habitat/ecology:  "It is usually found on poorly drained, wet areas; along streams and ditches in marshes; and on the dikes of rice paddies.  However, it is also common in lawns and in upland conditions where rainfall is about 1,200 mm or more.  It can grow under wet, saline cinditions but is often a weed of drier sites in plantation crops" (Holm et al., 1977; p. 258).

"A weed in moist bottomlands and muddy places" (Wiggins & Porter, 1971). In Guam, "a pantropical weed of open, sunny, wet localities" (Stone, 1970; pp. 584-585).  In Hawai‘i, "naturalized in disturbed areas" (Wagner et al., 1999; pp. 309, 1860).  In Fiji, "found near sea level and said to be locally common...as a naturalized weed in waste places, cultivated areas, and open fields, often near ditches" (Smith, 1991; pp. 274-275).  "Uncommon to occasional in wet places such as roadside ditches" (Whistler, 1988; p. 10). In New Guinea, "a common plant of wet situations; foreshores, streamsides, roadside ditches and a weed of wet pasture and poorly-drained patches in plantations. At low altitudes" (Henty & Pritchard, 1975; p. 69).

Propagation:  Seed

Native range:  Tropical America (Smith, 1991; pp. 274-275).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
American Samoa Tutuila Islands	Tutuila Island		Whistler, W. A. (1988) (p. 10)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Agrigan (Agrihan) Island	introduced	Ohba, T. (1994) (p. 64) Voucher cited: CBM-BS-59096
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Alamagan Island	introduced	Ohba, T. (1994) (p. 64) Voucher cited: CBM-BS-58855
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Maug Island		Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Rota Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Commonwealth of the Northern Mariana Islands (US) Saipan	Saipan Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Cook Islands Northern Cook Islands	Nassau Island		McCormack, Gerald (2013) ?
Cook Islands Northern Cook Islands	Pukapuka Atoll		McCormack, Gerald (2013)
Cook Islands Southern Cook Islands	Aitutaki Atoll		McCormack, Gerald (2013)
Cook Islands Southern Cook Islands	‘Atiu Island		McCormack, Gerald (2013)
Cook Islands Southern Cook Islands	Mangaia Island		McCormack, Gerald (2013)
Cook Islands Southern Cook Islands	Ma‘uke Island		McCormack, Gerald (2013)
Cook Islands Southern Cook Islands	Miti‘aro Island		McCormack, Gerald (2013)
Cook Islands Southern Cook Islands	Palmerston (Avarau) Island		McCormack, Gerald (2013) ?
Cook Islands Southern Cook Islands	Rarotonga Island		McCormack, Gerald (2013)
Federated States of Micronesia Chuuk Islands	Chuuk Islands		Swarbrick, John T. (1997) (p. 91)
Federated States of Micronesia Chuuk Islands	Namoluk (Nómwunuuk) Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Federated States of Micronesia Chuuk Islands	Puluwat (Pwonowót) Atoll	introduced invasive	Manner, H. I./Mallon, E. (1989) (p. 61) Voucher cited: Manner & Mallon 291 (GUAM)
Federated States of Micronesia Kosrae Island	Kosrae Island	introduced	Space, James C./Waterhouse, Barbara/Denslow, Julie S./Nelson, Duane/Waguk, Erick E. (2000) (p. Voucher specimen) Voucher: BMW 5749 (BISH, BRI)
Federated States of Micronesia Kosrae Island	Kosrae Island	introduced invasive	Lorence, David H./Flynn, Timothy (2010) (p. 13) Naturalized
Federated States of Micronesia Kosrae Island	Kosrae Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1996) (voucher ID: PTBG 24904) Taxon name on voucher: Eclipta prostrata (L.) Hassk.
Federated States of Micronesia Pohnpei Islands	Kapingamarangi Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Federated States of Micronesia Pohnpei Islands	Pohnpei Island	introduced invasive	Herrera, Katherine/Lorence, David H./Flynn, Timothy/Balick, Michael J. (2010) (p. 72) Vouchers cited: F.R. Fosberg 58510 (BISH), R. Gallen 150 (NY, PTBG), N.L.H. Krauss 1888 (BISH), L. Stemmermann 2922 (BISH) Naturalized
Federated States of Micronesia Pohnpei Islands	Pohnpei Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2003) (voucher ID: PTBG 43542) Taxon name on voucher: Eclipta prostrata
Federated States of Micronesia Yap Islands	Faraulep (Faraulap) Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Federated States of Micronesia Yap Islands	Ifalik (Ifaluk) Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Federated States of Micronesia Yap Islands	Ulithi Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Federated States of Micronesia Yap Islands	Ulithi Atoll		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1946) (voucher ID: PTBG 45130) Taxon name on voucher: Eclipta prostrata
Federated States of Micronesia Yap Islands	Woleai Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Federated States of Micronesia Yap Islands	Yap (Waqab) Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Federated States of Micronesia Yap Islands	Yap (Waqab) Island		Beleu National Museum (Republic of Palau. Koror.) (1968) (voucher ID: BNM 1146) Taxon name on voucher: Eclipta alba
Fiji Fiji Islands	Viti Levu Island	introduced invasive	Smith, Albert C. (1991) (pp. 274-275) Vouchers cited: DA 11762, DA 10820, DA 7554, DA 11597, DA 14429, Graeff 1433
French Polynesia Clipperton Island	Clipperton (Arue, Avera) Island		Sachet, M.-H. (1962) (p. 93)
French Polynesia Gambier Islands	Akamaru Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Gambier Islands	Akamaru Island	introduced	St. John, Harold (1988) (p. 25) Voucher cited: St. John 14693 (BISH)
French Polynesia Gambier Islands	Mangareva (Gambier) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Gambier Islands	Mangareva (Gambier) Island	introduced	St. John, Harold (1988) (p. 25) Voucher cited: Fosberg 11111 (BISH)
French Polynesia Gambier Islands	Taravai Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Marquesas Islands	Nuku Hiva (Nukahiva) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Nuku Hiva (Nukahiva) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J. Florence 4092 (PAP)
French Polynesia Marquesas Islands	Ua Pou (Huapu, Uapou, Uapu) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Society Islands	Bora Bora Island	introduced invasive	Welsh, S. L. (1998) (p. 74) Voucher cited: Grant 4886
French Polynesia Society Islands	Huahine Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J. Florence & R. Tahuaitu 11699 (PAP) Adventice
French Polynesia Society Islands	Maupiti (Maurua) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J.-F. Butaud & F.A. Jacq 76 (PAP) Adventice
French Polynesia Society Islands	Mehetia (Mahetia, Meetia) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J. Florence 10260 (PAP) Adventice
French Polynesia Society Islands	Moorea Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Society Islands	Raiatea (Havai) Island	introduced invasive	Welsh, S. L. (1998) (p. 74) Vouchers cited: Moore 17, BRY 25410, BRY 26366, BRY 26459
French Polynesia Society Islands	Raiatea (Havai) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J. Florence 10379 (PAP) Adventice
French Polynesia Society Islands	Taha‘a Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J. Florence 10601 (PAP) Adventice
French Polynesia Society Islands	Tahiti Island	introduced invasive	Welsh, S. L. (1998) (p. 74) Voucher cited: BRY 26011
French Polynesia Society Islands	Tahiti Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J. Florence , C. Ollier & R. Tahauitu 11481 (PAP) Adventice
French Polynesia Society Islands	Tupai Island	introduced invasive	Sachet, M.-H. (1983) (p. 24) Voucher cited: Sachet 1977 (US)
French Polynesia Tuamotu Archipelago	Niau Atoll	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J. Florence 10153 (PAP) Adventice
French Polynesia Austral (Tubuai) Islands	Raivavae (Raevavae) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Austral (Tubuai) Islands	Rapa Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Austral (Tubuai) Islands	Rimatara (Rimitara) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Austral (Tubuai) Islands	Rurutu Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Austral (Tubuai) Islands	Tubuai Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
Guam Guam Island	Guam Island	introduced invasive	Stone, Benjamin C. (1970) (pp. 584-585) Vouchers cited: Stone 3922 (GUAM), Stone 4310 (GUAM), G.E.S. 30
Guam Guam Island	Guam Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 309, 1860)
State of Hawaii Hawaiian Islands	Kaua‘i Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 309, 1860)
State of Hawaii Hawaiian Islands	Lāna‘i Island	introduced invasive	Oppenheimer, Hank L. (2003) (p. 7) Voucher cited: Oppenheimer 40120 (BISH, PTBG)
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 309, 1860)
State of Hawaii Hawaiian Islands	Moloka‘i Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 309, 1860)
State of Hawaii Hawaiian Islands	Ni‘ihau Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 309, 1860)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 309, 1860)
Japan (offshore islands) Ogasawara (Bonin) Islands	Bonin (Ogasawara) Islands	introduced	Kato, Hidetoshi (2007) As Eclipta alba (L.) Hassk.
Marshall Islands Ralik Chain	Enewetak (Ãnewetak, Eniwetok) Atoll	introduced invasive	Whistler, W. A./Steele, O. (1999) (pp. 34-35)
Marshall Islands Ralik Chain	Kili (Kõle) Atoll		Vander Velde, Nancy (year unknown)
Marshall Islands Ralik Chain	Kwajalein (Kuwajleen) Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Marshall Islands Ralik Chain	Kwajalein (Kuwajleen) Atoll	introduced invasive	Whistler, W. A./Steele, O. (1999) (pp. 34-35) Vouchers cited: Fosberg 31163, Fosberg 48016, Fosberg 48041, Herbst 9031, Whistler 11197, Whistler 11238
Marshall Islands Ralik Chain	Kwajalein (Kuwajleen) Atoll	introduced invasive	Fosberg, F. R. (1955) (p. 21) Voucher cited: Fosberg 31163 (US)
Marshall Islands Ralik Chain	Kwajalein (Kuwajleen) Atoll		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1998) (voucher ID: PTBG 43961) Taxon name on voucher: Eclipta prostrata
Marshall Islands Ralik Chain	Kwajalein (Kuwajleen) Atoll		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1998) (voucher ID: PTBG 44946) Taxon name on voucher: Eclipta prostrata
Marshall Islands Ratak Chain	Majuro (Mãjro) Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Marshall Islands Ratak Chain	Majuro (Mãjro) Atoll	introduced invasive	Vander Velde, Nancy (2003) (p. 70)
New Caledonia Îles Loyauté (Loyalte Islands)	Îles Loyauté (Loyalty Islands)	introduced invasive	Tassin, Jacques (2005)
New Caledonia Îles Loyauté (Loyalte Islands)	Îles Ouvéa (Ouvea Atoll)	introduced	MacKee, H. S. (1994) (p. 35) Voucher cited: Däniker 2096
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced invasive	Tassin, Jacques (2005)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced	MacKee, H. S. (1994) (p. 35) Vouchers cited: Vieillar 301, Vieillard 2819, Delacour 93, MacKee 1001, Morat 5377 bis, Toutain 3920 (NOU), Veillon 7923
Niue Niue	Niue Island	introduced	Sykes, W. R. (1970) (p. 65) Voucher cited: CHR 170430
Niue Niue	Niue Island	introduced invasive	Whistler, W. A. (1988) (p. 10)
Palau Hatohobei Group	Tobi Island		Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Palau Kayangel Atoll	Kayangel Islet	introduced invasive	Miles, Joel (2015) (p. 2) ref annotates this taxon with a "cross" symbol, but no explanation of that symbol is given in the text (ask Joel Miles about this) -PT@PhilipT.com/20170602
Palau Palau (Belau ) (main island group)	Babeldaob Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Palau Palau (Belau ) (main island group)	Babeldaob Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 101)
Palau Palau (Belau ) (main island group)	Babeldaob Island	introduced invasive	Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 63)
Palau Palau (Belau ) (main island group)	Kayangel (Ngcheangel) Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Palau Palau (Belau ) (main island group)	Koror (Oreor) Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 286-287)
Palau Palau (Belau ) (main island group)	Koror (Oreor) Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 97)
Palau Palau (Belau ) (main island group)	Malakal (Ngemelachel) Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 97)
Palau Palau (Belau ) (main island group)	Ngerkebesang Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 97)
Palau Palau (Belau ) (main island group)	Peleliu (Beliliou) Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 106)
Papua New Guinea Bismarck Archipelago	Bismarck Archipelago	introduced invasive	Peekel, P. G. [translated by E. E. Henty] (1984) (p. 561) Widespread weed.
Papua New Guinea Bougainville Islands	Bougainville Island		Foreman, D. B. (1971) (p. 37)
Papua New Guinea Papua New Guinea (eastern New Guinea Island)	Papua New Guinea (eastern New Guinea Island)	invasive	Henty, E. E./Pritchard, G. H. (1975) (p. 69) At low altitudes.
Philippines Philippine Islands	Philippine Islands		Merrill, Elmer D. (1923) (p. 610) A ubiquitous weed in the settled areas.
Samoa Western Samoa Islands	Western Samoa Islands		Whistler, W. A. (1988) (p. 10)
Solomon Islands Solomon Islands	Solomon Islands	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2013) Naturalized
Solomon Islands Solomon Islands	Solomon Islands	native	Hancock, I. R./Henderson, C. P. (1988) (p. 70)
Tonga Tongatapu Group	Tongatapu Island		Whistler, W. A. (1988) (p. 10)
Tuvalu Tuvalu (Ellis) Islands	Nui Atoll		Woodroffe, C. D. (1985) (p. 16) Voucher cited: Woodroffe 114 (CHR)
Tuvalu Tuvalu (Ellis) Islands	Tuvalu Islands		Swarbrick, John T. (1997) (p. 91)
Wallis and Futuna Wallis and Futuna (Horne) Islands	Futuna Island	introduced invasive	Morat, Ph./Veillon, J.-M. (1985) Morat & Veillon, 1985, cited in Meyer, 2007
Wallis and Futuna Wallis and Futuna (Horne) Islands	Wallis and Futuna Islands		Whistler, W. A. (1988) (p. 10)

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Australia Australia (continental)	New South Wales	native	National Herbarium of New South Wales (2013)
Australia Australia (continental)	Northern Territory	native	National Herbarium of New South Wales (2013)
Australia Australia (continental)	Queensland	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 260)
Australia Australia (continental)	Queensland	native	National Herbarium of New South Wales (2013)
Cambodia Cambodia	Cambodia (Kingdom of)	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2013) Naturalized
Central America Central America (Pacific rim)	Costa Rica (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America Central America (Pacific rim)	El Salvador (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America Central America (Pacific rim)	Guatemala (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America Central America (Pacific rim)	Honduras (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America Central America (Pacific rim)	Nicaragua (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America Central America (Pacific rim)	Panama (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
China China	China (People's Republic of)	introduced invasive	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013) Riversides, fields, abandoned ponds, roadsides; below 1600 m. Anhui, Fujian, Gansu, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Shaanxi, Shandong, Shanxi, Sichuan, Yunnan, Zhejiang.
China China	Hong Kong	native	Wu, Te-lin (2001) (p. 280) In wasteland and wet places.
Indonesia Indonesia	Indonesia (Republic of)		Waterhouse, D. F. (1993) (pp. 65, 77)
Japan Japan	Japan	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2013) Naturalized
Japan Japan	Japan	introduced	Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 190) As Eclipta alba (L.) Hassk.
North Korea North Korea	North Korea (Democratic People's Republic of)	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2013) Naturalized
South Korea South Korea	South Korea (Republic of)	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2013) Naturalized
Malaysia Malaysia	Malaysia (country of)	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2013) Naturalized
Mexico Mexico	Mexico (United Mexican States)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Singapore Singapore	Singapore (Republic of)		Waterhouse, D. F. (1993) (pp. 65, 77)
Singapore Singapore	Singapore (Republic of)	introduced invasive	Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 38) Naturalised
South America (Pacific rim) South America (Pacific rim)	Colombia	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
South America (Pacific rim) South America (Pacific rim)	Ecuador (Republic of) (continental)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
South America (Pacific rim) South America (Pacific rim)	Perú (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Taiwan Taiwan Island	Taiwan Island	introduced invasive	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013) Riversides, fields, abandoned ponds, roadsides; below 1600 m.
Taiwan Taiwan Island	Taiwan Island		Ching-I Peng, ed. (2013) "Common in ditches and paddy fields".
Thailand Thailand	Thailand (Kingdom of)	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2013) Naturalized
United States (west coast) United States (west coast states)	USA (California)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Vietnam Vietnam	Vietnam (Socialist Republic of)	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2013) Naturalized

Indian Ocean
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Australia (Indian Ocean offshore islands) Christmas Island Group	Christmas Island	introduced	Swarbrick, J. T. (1997) (p. 112)
British Indian Ocean Territory Chagos Archipelago	Diego Garcia Island	introduced invasive	Topp, J. M. W. (1988) (p. 9)
British Indian Ocean Territory Chagos Archipelago	Diego Garcia Island	introduced invasive	Whistler, W. Arthur (1996) (p. 26) As Eclipta alba (L.) Hassk.
British Indian Ocean Territory Chagos Archipelago	Diego Garcia Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1995) (voucher ID: PTBG 37883) Taxon name on voucher: Eclipta alba (L.) Hassk.
La Réunion (France) La Réunion Island	La Réunion Island	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2013) Naturalized
Mauritius Mautitius Islands (Mauritius and Rodrigues)	Mauritius Island	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2013) Naturalized

Also reported from
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Canada Canada	Canada	native	U.S. Dept. Agr., Agr. Res. Serv. (2013) Ontario
United States (continental except west coast) United States (other states)	United States (other states)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
United States (continental except west coast) United States (other states)	USA (Florida)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)

Control:  If you know of control methods for Eclipta prostrata, please let us know.