Phyllanthus urinaria L., Euphorbiaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Reject, score: 12 (Go to the risk assessment)

Common name(s): [more details]

Fijian: kai moku, se mbulumbulu, tho mokumoku

Kwara‘ae: mala, mala o‘a

Habit:  herb

Description:  "Glabrous erect herb, often reddish, to 30 cm tall, few-branched; leaves borne on slightly flattened branchlets, these about 10 cm long; leaves oblong or oblong-obovate, 7-18 mm long, 3-7 mm wide, rounded mucronate, obliquely rounded at base, subsessile, margins minutely scabrous, pale beneath; flowers subsessile, about 4 mm wide, sepals 6, oblong, stamens 3, anthers transversely opening, filaments connate; capsules depressed-globose, about 2.5 mm wide, pendulous, transversely rugose-echinate; styles free, minute, bifid; seeds transversely rugulose, 2.5 mm broad"  (Stone, 1970; p. 388).

Habitat/ecology:  In Fiji, found from near sea level to an elevation of 1,127 m as a weed in villages, gardens, and waste places, and also naturalized along forest trails and on cleared ridges and summits" (Smith, 1981; pp. 484-485).  "Common in lawns and other disturbed places" (Whistler, 1988; p. 19).

Propagation:  Seed

Native range:  "Indigenous in tropical eastern Asia and now a pantropical weed" (Smith, 1981; pp. 484-485). Fosberg et al. (1979; p. 144) list as native to Micronesia.

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
American Samoa Manu‘a Islands	Olosega Island		Swarbrick, John T. (1997) (p. 95)
American Samoa Manu‘a Islands	Olosega Island		Whistler, W. A. (1990) Voucher cited: Whistler 3337
Cook Islands Cook Islands	Cook Islands		McCormack, Gerald (2008)
Federated States of Micronesia Chuuk Islands	Fefan Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 144)
Federated States of Micronesia Chuuk Islands	Namoluk (Nómwunuuk) Atoll	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 144)
Federated States of Micronesia Chuuk Islands	Namoluk (Nómwunuuk) Atoll		Marshall, Mae/Fosberg, F. R. (1975) (p. 38) Voucher cited: Marshall 85 (US)
Federated States of Micronesia Chuuk Islands	Uman Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 144)
Federated States of Micronesia Chuuk Islands	Weno (Moen) Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 144)
Federated States of Micronesia Kosrae Island	Kosrae Island	native	Space, James C./Waterhouse, Barbara/Denslow, Julie S./Nelson, Duane/Waguk, Erick E. (2000) (p. Voucher specimen) Voucher: BMW 5753 (BISH, BRI)
Federated States of Micronesia Kosrae Island	Kosrae Island		Lorence, David H./Flynn, Tim (2005) (p. 15)
Federated States of Micronesia Pohnpei Islands	Pohnpei Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 144)
Federated States of Micronesia Pohnpei Islands	Pohnpei Island		Glassman, S. F. (1952) (p. 73) Voucher cited: Hosokawa 6076
Federated States of Micronesia Yap Islands	Fais Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 144)
Federated States of Micronesia Yap Islands	Fais Island	introduced invasive	Fosberg, F. R./Evans, M. (1969) (p. 9) Voucher cited: Fosberg 46663 (US)
Federated States of Micronesia Yap Islands	Ifalik (Ifaluk) Atoll	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 144)
Federated States of Micronesia Yap Islands	Yap (Waqab) Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 144)
Fiji Fiji Islands	Ovalau Island	introduced invasive	Smith, Albert C. (1981) (pp. 464-465) Voucher cited: Smith 7471
Fiji Fiji Islands	Vanua Levu Island	introduced invasive	Smith, Albert C. (1981) (pp. 464-465) Vouchers cited: Greenwood 705, DA 9622
Fiji Fiji Islands	Viti Levu Island	introduced invasive	Smith, Albert C. (1981) (pp. 464-465) Vouchers cited: Greenwood 789A, Tothill 734, Smith 4851, DA 2430, Smith 5824, DA 467, Weiner 236, DA 9582, DA 3978, DA 9385, DA 11220, DA 9969
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced invasive	Florence, J. (1997) (p. 131)
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2008)
French Polynesia Society Islands	Huahine Island	introduced invasive	Welsh, S. L. (1998) (p. 113) Voucher cited: Fosberg 6308
French Polynesia Society Islands	Huahine Island	introduced invasive	Florence, J. (1997) (p. 131)
French Polynesia Society Islands	Moorea Island	introduced invasive	Florence, J. (1997) (p. 131)
French Polynesia Society Islands	Raiatea (Havai) Island	introduced invasive	Welsh, S. L. (1998) (p. 113) Vouchers cited: Florence 2504, BRY 26414
French Polynesia Society Islands	Raiatea (Havai) Island	introduced invasive	Florence, J. (1997) (p. 131)
French Polynesia Society Islands	Taha‘a Island	introduced invasive	Florence, J. (1997) (p. 131)
French Polynesia Society Islands	Tahiti Island	introduced invasive	Welsh, S. L. (1998) (p. 113) Vouchers cited: Grant 4509, Birnbaum 109, Florence 2504
French Polynesia Society Islands	Tahiti Island	introduced invasive	Florence, J. (1997) (p. 131)
French Polynesia Tubuai (Austral) Islands	Rurutu Island	introduced invasive	Florence, J. (1997) (p. 131)
Guam Guam Island	Guam Island	introduced invasive	Stone, Benjamin C. (1970) (p. 388) Voucher cited: G.E.S. 108
Guam Guam Island	Guam Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 144)
New Caledonia Îles Loyauté (Loyalte Islands)	Îles Loyauté (Loyalty Islands)	introduced invasive	Tassin, Jacques (2005)
New Caledonia Îles Loyauté (Loyalte Islands)	Île Lifou	introduced	MacKee, H. S. (1994) (p. 54) Vouchers cited: Deplanche s.n., Däniker 2279 (Z), Schmid 1017
New Caledonia Îles Loyauté (Loyalte Islands)	Îles Ouvéa (Ouvea Atoll)	introduced	MacKee, H. S. (1994) (p. 54) Voucher cited: Däniker 2101 (Z)
New Caledonia New Caledonia	New Caledonia Islands		Swarbrick, John T. (1997) (p. 95)
New Guinea (Indonesia and Papua New Guinea) New Guinea Island	New Guinea Island		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 277)
Palau Palau (main island group)	Koror Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 144)
Palau Palau (main island group)	Koror Island	native	Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. Field notes)
Philippines Philippine Islands	Philippine Islands	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Samoa Western Samoa Islands	Upolu Island		Whistler, W. A. (1988) (p. 19)
Solomon Islands Solomon Islands	Solomon Islands		Swarbrick, John T. (1997) (p. 95)
Solomon Islands Solomon Islands	Solomon Islands	native	Hancock, I. R./Henderson, C. P. (1988) (p. 99)

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Cambodia Cambodia	Cambodia (Kingdom of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
China China	China (People's Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Indonesia Indonesia	Indonesia (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Japan Japan	Japan (country)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
South Korea South Korea	South Korea (Republic of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 277)
Malaysia Malaysia	Malaysia (country of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Taiwan Taiwan	Taiwan Island	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Thailand Thailand	Thailand (Kingdom of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 277)
Vietnam Vietnam	Vietnam (Socialist Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)

Indian Ocean
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Maldives Maldive Islands	Addu Atoll		Spicer, R. A./Newberry, D. MacC. (1979) (p. 13)
Maldives Maldive Islands	Maldive Islands		Fosberg, F. R. (1957) (p. 25)
Mauritius Mautitius Islands (Mauritius and Rodrigues)	Mauritius Island		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 277)
Seychelles Seychelles Islands	Frégate Island		Robertson, S. A./Todd, D. M. (1983) (p. 51) Voucher cited: Robertson 2714

Additional information:
Additional online information about Phyllanthus urinaria is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Phyllanthus urinaria as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Phyllanthus urinaria may be available from the Germplasm Resources Information Network (GRIN).

References:

Florence, J. 1997. Flore de la Polynésie française, Vol. 1. Paris. Editions de l'Orstom, Institut Français de Recherche Scientifique pour le Développement en Coopération, Collection Faune et Flore Tropicales 34. 393 pp.

Fosberg, F. R. 1957. The Maldive Islands, Indian Ocean. Atoll Research Bulletin No. 58. Pacific Science Board, National Academy of Sciences, Washington. 37 pp.

Fosberg, F. R./Evans, M. 1969. A collection of plants from Fais, Caroline Islands. Atoll Research Bulletin No. 133. Smithsonian Institution, Washington. 15 pp.

Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce. 1979. A geographical checklist of the Micronesian dicotyledonae. Micronesica 15:1-295.

Glassman, S. F. 1952. The flora of Ponape. Bishop Mus. Bull. 209: 1-152.

Hancock, I. R./Henderson, C. P. 1988. Flora of the Solomon Islands. Research Bulletin No. 7. Ministry of Agriculture and Lands, Honiara. 203 pp.

Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. 1979. A geographical atlas of world weeds. John Wiley & Sons, New York. 391 pp.

Lorence, David H./Flynn, Tim. 2005. Checklist of the plants of Kosrae. Unpublished checklist. National Tropical Botanical Garden, Lawai, Hawai‘i. 23 pp.

Lorence, David H./Wagner, Warren L. 2008. Flora of the Marquesas Islands. National Tropical Botanical Garden and the Smithsonian Institution. Online database.

MacKee, H. S. 1994. Catalogue des plantes introduites et cultivées en Nouvelle-Calédonie. Muséum National d'Histoire Naturelle, Paris, 164 p.

Marshall, Mae/Fosberg, F. R. 1975. The natural history of Namoluk Atoll, eastern Caroline Islands. Atoll Research Bulletin No. 189. Smithsonian Institution, Washington. 53 pp + photos.

McCormack, Gerald. 2008. Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga.

Robertson, S. A./Todd, D. M. 1983. Vegetation of Frégate Island, Seychelles. In: Sachet, M. H., D. R. Stoddart, and F. R. Fosberg. Floristics and ecology of Western Indian Ocean islands. Atoll Research Bulletin No. 273. Smithsonian Institution, Washington. 253 pp.

Smith, Albert C. 1981. Flora Vitiensis nova: a new flora of Fiji. National Tropical Botanical Garden, Lawai, Kauai, Hawaii. Volume 2. 810 pp.

Space, James C./Lorence, David H./LaRosa, Anne Marie. 2009. Report to the Republic of Palau: 2008 update on Invasive Plant Species. USDA Forest Service, Hilo, Hawai‘i. (In press).

Space, James C./Waterhouse, Barbara/Denslow, Julie S./Nelson, Duane/Waguk, Erick E. 2000. Invasive plant species on Kosrae, Federated States of Micronesia.  USDA Forest Service, Honolulu. 43 pp.

Spicer, R. A./Newberry, D. MacC. 1979. The terrestrial vegetation of an Indian Ocean coral islands: Wilingili, Addu Atoll, Maldive Islands. I. Transect analysis of the vegetation. II. A limited quantitative analysis of the vegetation distribution. Atoll Research Bulletin 231. The Smithsonian Institution, Washington, D. C. 25 pp.

Stone, Benjamin C. 1970. The flora of Guam. Micronesica 6:1-659.

Swarbrick, John T. 1997. Weeds of the Pacific Islands. Technical paper no. 209. South Pacific Commission, Noumea, New Caledonia. 124 pp.

Tassin, Jacques. 2005. Jacques Tassin (IAC-CIRAD), personal communication.

U.S. Dept. Agr., Agr. Res. Serv. 2009. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

Welsh, S. L. 1998. Flora Societensis: A summary revision of the flowering plants of the Society Islands. E.P.S. Inc., Orem, Utah. 420 pp.

Whistler, W. A. 1988. Checklist of the weed flora of western Polynesia. Technical Paper No. 194, South Pacific Commission, Noumea, New Caledonia. 69 pp.

Whistler, W. A. 1990. The weeds of Manu‘a [unpublished checklist]. 18 pp.