Eugenia uniflora L., Myrtaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

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

Common name(s): [more details]

Chamorro: pitanga

English: Barbados cherry, French cherry, pitanga, red Brazil cherry, Surinam cherry

French: cerise côtelée, cerise créole, cerise de Cayenne, cerisier carré, cerisier de Cayenne, roussaille

Maori (Cook Islands): menemene, menemene, venevene

Niuean: kafika, kafika palangi, kafika papalangi

Portuguese: pitanga

Spanish: cerezo de Cayena, nagapiry, pitanga

Habit:  shrub/tree

Description:  "Small tree or shrub, young leaves coppery-pink; mature leaves opposite, ovate or narrowly ovate, subglossy, paler beneath, 3-7 cm long, 1.5-3 cm wide, lateral nerves about 7-9 pairs, margins often slightly and irregularly wavy, or entire; petioles 1-3 mm long; flowers commonly axillary, solitary or fascicled, peduncles slender, 1.5-3 cm long, with small bracts; calyx 4-lobed, lobes 3-4 mm long; petals 4, white, thin, fugacious, nearly 1 cm long, obovate; stamens many (about 50), 8 mm long; ovary slightly ridged; fruit a succulent berry with usually 8 deep longitudinal grooves and as many ridges, 1.5 cm long, 2 cm wide, red or very dark red when ripe 1-2-seeded, crowned by calyx-limb, juicy, edible, acid."  (Stone, 1970; p. 452).

"Arbuste à petit arbre de 2 à 7 m de hauteur, reconnaissable à ses petites feuilles ovales, un peu coriaces, ses fleurs solitaires blanches, ses petits fruits charnus globuleux avec 8 côtes saillantes, de couleur jaune devenant rouge vif à maturité"  (Meyer, 2008; p. 36).

Habitat/ecology:  Prefers fertile, moist soils and partial shade (Bodkin, 1986, cited in Csurhes and Edwards, 1998; p. 108).  In Hawai‘i, "very sparingly naturalized in low elevation mesic sites, especially valley floors, 30-730 m"  (Wagner et al., 1999; p. 961).

Propagation:  Seed, probably spread by birds.

Native range:  South America, now pantropical.

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	introduced invasive	Space, James C./Flynn, Tim (2000) (p. 35)
Australia (Pacific offshore islands) Lord Howe Island	Lord Howe Island	introduced	Orchard, Anthony E., ed. (1994) (p. 9) "It has been collected on Lord Howe Is., but without information as to its spontaneity". Voucher cited: A.C. Beauglehole 5852 (MEL)
Australia (Pacific offshore islands) Norfolk Islands	Norfolk Island	introduced invasive	Orchard, Anthony E., ed. (1994) (p. 9) "Cultivated, escaped and now self-sown in at least one locality". W.R. Sykes NI 528 (CHR)
Chile (Rapa Nui Island) Rapa Nui (Easter) Island	Rapa Nui (Easter) Island (Isla de Pasqua)	introduced cultivated	Meyer, Jean-Yves (2008) (pp. 36, 42)
Cook Islands Northern Cook Islands	Manihiki Atoll		McCormack, Gerald (2008)
Cook Islands Southern Cook Islands	Aitutaki Atoll	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 7)
Cook Islands Southern Cook Islands	Aitutaki Atoll		Bishop Museum (Honolulu) (1969) (voucher ID: BISH 81939) Taxon name on voucher: Eugenia uniflora L.
Cook Islands Southern Cook Islands	‘Atiu Island		McCormack, Gerald (2008)
Cook Islands Southern Cook Islands	‘Atiu Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 7) Reported to be present by the Cook Islands Natural Heritage Project.
Cook Islands Southern Cook Islands	Mangaia Island		McCormack, Gerald (2008)
Cook Islands Southern Cook Islands	Mangaia Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 7)
Cook Islands Southern Cook Islands	Ma‘uke Island		McCormack, Gerald (2008)
Cook Islands Southern Cook Islands	Ma‘uke Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 7)
Cook Islands Southern Cook Islands	Miti‘aro Island		McCormack, Gerald (2008)
Cook Islands Southern Cook Islands	Miti‘aro Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 7)
Cook Islands Southern Cook Islands	Palmerston (Avarau) Island		McCormack, Gerald (2008)
Cook Islands Southern Cook Islands	Rarotonga Island	introduced	Meyer, Jean-Yves (2000) (p. 89) "Potential invader"
Cook Islands Southern Cook Islands	Rarotonga Island		McCormack, Gerald (2008)
Cook Islands Southern Cook Islands	Rarotonga Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 7)
Cook Islands Southern Cook Islands	Rarotonga Island		Bishop Museum (Honolulu) (1929) (voucher ID: BISH 164819) Taxon name on voucher: Eugenia uniflora L.
Federated States of Micronesia Pohnpei Islands	Pohnpei Island		Lorence, David H./Flynn, Tim (1998) (p. 25)
Fiji Fiji Islands	Viti Levu Island	introduced invasive cultivated	Smith, Albert C. (1985) (p. 373) Perhaps sparingly naturalized.
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2008)
French Polynesia Marquesas Islands	Fatu Hiva Island		Bishop Museum (Honolulu) (1988) (voucher ID: BISH 601841) Taxon name on voucher: Eugenia uniflora L.
French Polynesia Marquesas Islands	Hiva Oa Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2008)
French Polynesia Marquesas Islands	Hiva Oa Island		Bishop Museum (Honolulu) (1988) (voucher ID: BISH 601908) Taxon name on voucher: Eugenia uniflora L.
French Polynesia Marquesas Islands	Marquesas Islands	introduced cultivated	Welsh, S. L. (1998) (p. 197)
French Polynesia Marquesas Islands	Nuku Hiva (Nukahiva) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2008)
French Polynesia Marquesas Islands	Nuku Hiva (Nukahiva) Island		Bishop Museum (Honolulu) (1982) (voucher ID: BISH 555146) Taxon name on voucher: Eugenia uniflora L.
French Polynesia Marquesas Islands	Nuku Hiva (Nukahiva) Island		Bishop Museum (Honolulu) (1982) (voucher ID: BISH 558061) Taxon name on voucher: Eugenia uniflora L.
French Polynesia Marquesas Islands	Tahuata (Tuhuata) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2008)
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2008)
French Polynesia Society Islands	Maupiti (Maurua) Island	introduced invasive cultivated	Fosberg, F. R./Sachet, M.-H. (1987) (p. 53) Voucher cited: Fosberg 64947 (US) Possibly naturalized.
French Polynesia Society Islands	Maupiti (Maurua) Island		Bishop Museum (Honolulu) (1985) (voucher ID: BISH 614455) Taxon name on voucher: Eugenia uniflora L.
French Polynesia Society Islands	Moorea Island		Fosberg, F. R. (1997) (p. 81)
French Polynesia Society Islands	Moorea Island		Bishop Museum (Honolulu) (1967) (voucher ID: BISH 164833) Taxon name on voucher: Eugenia uniflora L.
French Polynesia Society Islands	Moorea Island		Bishop Museum (Honolulu) (1983) (voucher ID: BISH 492711) Taxon name on voucher: Eugenia uniflora L.
French Polynesia Society Islands	Raiatea (Havai) Island	introduced cultivated	Welsh, S. L. (1998) (p. 197) Voucher cited: BRY 26566
French Polynesia Society Islands	Tahiti Island	introduced cultivated	Welsh, S. L. (1998) (p. 197)
French Polynesia Society Islands	Tahiti Island		Bishop Museum (Honolulu) (1982) (voucher ID: BISH 492783) Taxon name on voucher: Eugenia uniflora L.
French Polynesia Society Islands	Tahiti Island		Bishop Museum (Honolulu) (1982) (voucher ID: BISH 607490) Taxon name on voucher: Eugenia uniflora L.
French Polynesia Tuamotu Archipelago	Takapoto Atoll	introduced cultivated	Sachet, M-H. (1983) (p. 31) Voucher cited: Sachet 2078 (US)
French Polynesia Tubuai (Austral) Islands	Rurutu Island		Bishop Museum (Honolulu) (1983) (voucher ID: BISH 551111) Taxon name on voucher: Eugenia uniflora L.
French Polynesia Tubuai (Austral) Islands	Tubuai (Tupuai) Island		Bishop Museum (Honolulu) (1992) (voucher ID: BISH 644219) Taxon name on voucher: Eugenia uniflora L.
Guam Guam Island	Guam Island	introduced cultivated	Stone, Benjamin C. (1970) (p. 452)
Guam Guam Island	Guam Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 190)
Guam Guam Island	Guam Island		Bishop Museum (Honolulu) (1964) (voucher ID: BISH 164933) Taxon name on voucher: Eugenia uniflora L.
Guam Guam Island	Guam Island		Bishop Museum (Honolulu) (year unknown) (voucher ID: BISH 164934) Taxon name on voucher: Eugenia uniflora L.
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 961)
State of Hawaii Hawaiian Islands	Kaua‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 961)
State of Hawaii Hawaiian Islands	Lāna‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 961)
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive cultivated	Oppenheimer, Hank L. (2003) (p. 16) Vouchers cited: Oppenheimer H30103 (BISH, PTBG), Oppenheimer H100114 (BISH), Starr & Martz 011025-2 (BISH)
State of Hawaii Hawaiian Islands	Moloka‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 961)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 961)
Marshall Islands Ralik Chain	Kwajalein (Kuwajleen) Atoll	introduced cultivated	Whistler, W. A./Steele, O. (1999) (p. 101)
New Caledonia Îles Loyauté (Loyalte Islands)	Île Lifou	introduced cultivated	MacKee, H. S. (1994) (p. 106) Voucher cited: MacKee 5277
New Caledonia Îles Loyauté (Loyalte Islands)	Île Maré	introduced cultivated	MacKee, H. S. (1994) (p. 106) Voucher cited: Baumann 14532
New Caledonia Îles Loyauté (Loyalte Islands)	Îles Ouvéa (Ouvea Atoll)	introduced cultivated	MacKee, H. S. (1994) (p. 106) Vouchers cited: Däniker 1967 (Z), Schmid 2337 (NOU), Blanchon 1556 (NOU)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced cultivated	MacKee, H. S. (1994) (p. 106) Vouchers cited: MacKee 5502, MacKee 21048, MacKee 40702
Niue Niue	Niue Island	introduced	Sykes, W. R. (1970) (p. 130) Mostly cultivated. Voucher cited: CHR 170464
Niue Niue	Niue Island	introduced cultivated	Space, James C./Flynn, Tim (2000) (p. 23)
Niue Niue	Niue Island	introduced invasive cultivated	Yuncker, T. G. (1943) (p. 91) Vouchers cited: Yuncker 9572 (BISH), Yuncker 9982 (BISH) "Occasional about dwellings and in theicckets near villages".
Niue Niue	Niue Island	introduced cultivated	Space, James C./Waterhouse, Barbara M./Newfield, Melanie/Bull, Cate (2004) (p. 14)
Palau Palau (main island group)	Koror Island	introduced cultivated	Miles, Joel (year unknown)
Papua New Guinea Papua New Guinea (eastern New Guinea Island)	Papua New Guinea (eastern New Guinea Island)		Waterhouse, Barbara (year unknown)
Pitcairn Islands Pitcairn Islands	Pitcairn Island	introduced invasive cultivated	Meyer, Jean-Yves (2000) (p. 103) "Gardens".
Pitcairn Islands Pitcairn Islands	Pitcairn Island	introduced cultivated	St. John, H. (1987) (p. 44) Vouchers cited: Ross 7, Fosberg & B. Christian 11176
Pitcairn Islands Pitcairn Islands	Pitcairn Island	introduced	Fosberg, F. R./Paulay, Gustav/Spencer, T./Oliver, Royce (1989) (p. 14) Voucher cited: Paulay, Spencer & Schuster 687 (US)
Samoa Western Samoa Islands	Savai‘i Island		Bishop Museum (Honolulu) (1931) (voucher ID: BISH 164865) Taxon name on voucher: Eugenia uniflora L.
Samoa Western Samoa Islands	Upolu Island		Bishop Museum (Honolulu) (1929) (voucher ID: BISH 164862) Taxon name on voucher: Eugenia uniflora L.
Samoa Western Samoa Islands	Upolu Island		Bishop Museum (Honolulu) (1929) (voucher ID: BISH 164863) Taxon name on voucher: Eugenia uniflora L.
Samoa Western Samoa Islands	Upolu Island		Bishop Museum (Honolulu) (1931) (voucher ID: BISH 403813) Taxon name on voucher: Eugenia uniflora L.
Samoa Western Samoa Islands	Upolu Island		Bishop Museum (Honolulu) (1973) (voucher ID: BISH 417643) Taxon name on voucher: Eugenia uniflora L.
Tonga Tongatapu Group	Tongatapu Island	introduced cultivated	Space, James C./Flynn, Tim (2001) (p. 53)
United States (other Pacific offshore islands) Midway Atoll	Midway Atoll	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 961)

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)	Australia (continental)	introduced invasive	Csurhes, S./Edwards, R. (1998) (p. 108)

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 cultivated	Swarbrick, J. T. (1997) (p. 113)
La Réunion (France) La Réunion Island	La Réunion Island	introduced invasive cultivated	Lavergne, Christophe (2006) "Cultivé/Naturalisé/Subspontané?"
Mauritius Mautitius Islands (Mauritius and Rodrigues)	Mauritius Island	introduced invasive	Kueffer, C./Mauremootoo, J. (2004) (pp. 7, 8)

Also reported from
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
United States (continental except west coast and Florida) United States (other states)	USA (Florida)	introduced	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2009)

Comments:  Spreading on Mangaia, Cook Islands (Space & Flynn, 2002).

Control: 

Physical:  Hand pull or dig out seedlings and young trees.

Chemical:  Cut larger trees and treat the stumps with herbicide.

Additional information:
Photos and additional information at University of Florida, Center for Aquatic and Invasive Plants.
Information from the Purdue University NewCROP web site.
Photo at the University of Guam "Plants of Guam" web site.
Information from the World Agroforestry Centre's AgroForestryTree Database.
Information from the Global Invasive Species Database.
Information from the book "Identification and biology of non-native plants in Florida's natural areas" (PDF format).

Additional online information about Eugenia uniflora is available from the Hawaiian Ecosystems at Risk project (HEAR).

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

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

References:

Bishop Museum (Honolulu). 0. Voucher specimen #BISH 164934 (Thompson, J.B. 441).

Bishop Museum (Honolulu). 1929. Voucher specimen #BISH 164819 (Wilder, G.P. 1019).

Bishop Museum (Honolulu). 1929. Voucher specimen #BISH 164862 (Christophersen, E. 426).

Bishop Museum (Honolulu). 1929. Voucher specimen #BISH 164863 (Christophersen, E. 516).

Bishop Museum (Honolulu). 1931. Voucher specimen #BISH 164865 (Christophersen, E. 2549).

Bishop Museum (Honolulu). 1931. Voucher specimen #BISH 403813 (Christophersen, E. 1836).

Bishop Museum (Honolulu). 1964. Voucher specimen #BISH 164933 (Stone, B.C.M. 5057).

Bishop Museum (Honolulu). 1967. Voucher specimen #BISH 164833 (Smith, H.M. 156).

Bishop Museum (Honolulu). 1969. Voucher specimen #BISH 81939 (Stoddart, D.R. 2309).

Bishop Museum (Honolulu). 1973. Voucher specimen #BISH 417643 (Whistler, W.A. W 721).

Bishop Museum (Honolulu). 1982. Voucher specimen #BISH 492783 (Florence, J. 3659b).

Bishop Museum (Honolulu). 1982. Voucher specimen #BISH 555146 (Florence, J. 4240).

Bishop Museum (Honolulu). 1982. Voucher specimen #BISH 558061 (Florence, J. 4165).

Bishop Museum (Honolulu). 1982. Voucher specimen #BISH 607490 (Fosberg, F.R. 63754).

Bishop Museum (Honolulu). 1983. Voucher specimen #BISH 492711 (Florence, J. 4950).

Bishop Museum (Honolulu). 1983. Voucher specimen #BISH 551111 (Florence, J. 6169).

Bishop Museum (Honolulu). 1985. Voucher specimen #BISH 614455 (Fosberg, F.R. 64947).

Bishop Museum (Honolulu). 1988. Voucher specimen #BISH 601841 (J.Florence 9555).

Bishop Museum (Honolulu). 1988. Voucher specimen #BISH 601908 (J.Florence 9613).

Bishop Museum (Honolulu). 1992. Voucher specimen #BISH 644219 (Florence 11124).

Csurhes, S./Edwards, R. 1998. Potential environmental weeds in Australia: Candidate species for preventative control. Canberra, Australia. Biodiversity Group, Environment Australia. 208 pp.

Falanruw, Marjorie C./Maka, Jean E./Cole, Thomas G./Whitesell, Craig D. 1990. Common and scientific names of trees and shrubs of Mariana, Caroline, and Marshall Islands. Pac. SW Forest and Range Expt. Stn. Resource Bulletin PSW-67. 91 pp.

Fosberg, F. R. 1997. Preliminary checklist of the flowering plants and ferns of the Society Islands. Ed. by David R. Stoddart. U. Cal. Berkeley.

Fosberg, F. R./Paulay, Gustav/Spencer, T./Oliver, Royce. 1989. New collections and notes on the plants of Henderson, Pitcairn, Oeno, and Ducie Islands. Atoll Research Bulletin No. 329. Smithsonian Institution, Washington. 18 pp.

Fosberg, F. R./Sachet, M.-H. 1987. Flora of Maupiti, Society Islands. The Smithsonian Institution. Atoll Research Bulletin 294:1-70.

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

Kueffer, C./Mauremootoo, J. 2004. Case studies on the status of invasive woody plant species in the western Indian Ocean. 3. Mauritius (islands of Mauritius and Rodrigues). Food and Agriculture Organization of the United Nations, Forestry Department, Forest Resources Division, Forest Resources Development Service, Working Paper FBS/4-3E. 35 pp.

Langeland, K. A./Burks, K. Craddock. eds. 1998. Identification and biology of non-native plants in Florida's natural areas. Gainesville, FL: University of Florida. 165 pp.

Lavergne, Christophe. 2006. List des especes exotiques envahissantes a La Reunion. Unpublished manuscript (Excel file). .

Lorence, David H./Flynn, Tim. 1998. Checklist of the plants of Pohnpei. Unpublished checklist. National Tropical Botanical Garden, Lawai, Hawai‘i. 21 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.

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

Meyer, Jean-Yves. 2000. Preliminary review of the invasive plants in the Pacific islands (SPREP Member Countries). In: Sherley, G. (tech. ed.). Invasive species in the Pacific: A technical review and draft regional strategy. South Pacific Regional Environment Programme, Samoa. 190 pp.

Meyer, Jean-Yves. 2008. Rapport de mission d'expertise a Rapa Nui du 02 au 11 Juin 2008: Plan d'action strategique pour lutter contre les plantes introduites envahissantes sur Rapa Nui (Île de pâques) [Strategic action plan to control invasive alien plants on Rapa Nui (Easter Island) [unpublished report]. Délégation à la Recherche, Ministère de l'Education, l'Enseignement supérieur et la Recherche, B.P. 20981 Papeete, Tahiti, Polynésie française. 62 pp. .

Miles, Joel. 0. Joel Miles, pers. com.

Oppenheimer, Hank L. 2003. New plant records from Maui and Hawai‘i Counties. In: Evenhuis, Neal L. and Eldredge, Lucius G., eds. Records of the Hawaii Biological Survey for 2001-2002. Part 1: Articles. Bishop Museum Occasional Papers. 73:3-30.

Orchard, Anthony E., ed. 1994. Flora of Australia. Vol. 49, Oceanic islands 1. Australian Government Publishing Service, Canberra.

Sachet, M-H. 1983. Takapoto Atoll, Tuamotu Archipelago: terrestrial vegetation and flora. Atoll Research Bulletin No. 277. Smithsonian Institution, Washington. 41 pp. + photos.

Smith, Albert C. 1985. Flora Vitiensis nova: a new flora of Fiji. National Tropical Botanical Garden, Lawai, Kauai, Hawaii. Volume 3. 758 pp.

Space, James C./Flynn, Tim. 2000. Observations on invasive plant species in American Samoa.  USDA Forest Service, Honolulu. 51 pp.

Space, James C./Flynn, Tim. 2000. Report to the Government of Niue on invasive plant species of environmental concern.  USDA Forest Service, Honolulu. 34 pp.

Space, James C./Flynn, Tim. 2001. Report to the Kingdom of Tonga on invasive plant species of environmental concern.  USDA Forest Service, Honolulu. 78 pp.

Space, James C./Flynn, Tim. 2002. Report to the Government of the Cook Islands on invasive plant species of environmental concern. USDA Forest Service, Honolulu. 146 pp.

Space, James C./Waterhouse, Barbara M./Newfield, Melanie/Bull, Cate. 2004. Report to the Government of Niue and the United Nations Development Programme: Invasive plant species on Niue following Cyclone Heta. UNDP NIU/98/G31 - Niue Enabling Activity. 80 pp.

St. John, H. 1987. An account of the flora of Pitcairn Island with new Pandanus species. Honolulu, 65 pp.

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

Swarbrick, J. T. 1997. Environmental weeds and exotic plants on Christmas Island, Indian Ocean: a report to Parks Australia. 101 pp. plus appendix.

Sykes, W. R. 1970. Contributions to the flora of Niue. New Zealand Department of Scientific and Industrial Research Bulletin 200, Wellington. 321 pp.

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

U.S. Dept. Agr., Nat. Res. Cons. Serv. 2009. The PLANTS Database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. 1999. Manual of the flowering plants of Hawaii. Revised edition. Bernice P. Bishop Museum special publication. University of Hawai‘i Press/Bishop Museum Press, Honolulu. 1919 pp. (two volumes).

Waterhouse, Barbara. 0. Barbara Waterhouse, pers. com.

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. 1990. Ethnobotany of the Cook Islands: The plants, their Maori names, and their uses. Allertonia 5(4):347-424.

Whistler, W. A./Steele, O. 1999. Botanical survey of the United States of America Kwajalein Atoll (USAKA) Islands. Prepared for Oak Ridge Institute for Science and Education and the U. S. Army Environmental Center. 111 pp.

Yuncker, T. G. 1943. The flora of Niue Island. Bishop Mus. Bull. 178. Bishop Museum Press, Honolulu. 126 pp.