Psidium guajava L., Myrtaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  High risk, score: 21 (Go to the risk assessment)

Common name(s): [more details]

Carolinian: abwas

Chamorro: abas, abas, abas guayaba, abas guayaba

Chinese: fan shi liu

Chuukese: kuafa

English: common guava, guava

Fijian: ngguava, ngguava ni India, quwawa

French: goyave, goyavier, goyavier commun

Hawaiian: kuawa, kuawa ke‘oke‘o, kuawa lemi, kuawa momona, pauwa

Hindi: amrud, amrut

I-Kiribati: te kuawa, te kuwawa

Kosraean: kuhfahfah

Mangarevan: tuava

Maori (Cook Islands): tū‘ava, tuava, tūava, tūava, tūava, tuava ‘enua, tūvava

Marquesan: tuava

Nauruan: kuwawa

Niuean: kautoga, kautoga taane, kautoga tāne, kautonga, kautonga, kautonga tāne, lala

Palauan: guabang, kuabang

Pohnpeian: guahva, kuahpa, kuahpa, kuwahpa

Pukapukan: tuava

Rakahanga-Manihiki: tuava, tuava

Rapa Nui: tuaba, tuava

Rotuman: kuava

Samoan: kuava, ku‘ava, kuava, ku‘ava

Spanish: apas, guayaba, guayabo

Tahitian: tūava, tuava, tumu tuava, tūvava, tuvava

Tongan: kuava

Tongarevan: tūava

Tuvaluan: ku‘ava, kuava

Wallisian: vi papalagi

Yapese: abas, abas guayaba

Habit:  tree

Description:  "A shrub or small tree; bark smooth, light reddish-brown, with pubescent 4-angled young branches; leaves opposite, ovate-elliptic or oblong-elliptic, acute-acuminate, pubescent beneath, often rather brittle, prominently nerved, lateral nerves 10-20 pairs; blades mostly 7-15 cm long and 3-5 cm wide, rounded at base, dull green; flowers solitary or 2-4 together in leaf axils, rather large (2.5 cm wide); peduncle about 1-2 cm long, pubescent; calyx 4-5-lobed (anthesis, not before) about 6-8 mm long, petals white, 10-15 mm long, fugacious, usually 4 or 5, obovate, slightly concave, stamens numerous (c. 200-250), white, about as long as petals; style 10-12 mm long, stigma peltate, fruit globose, ovoid, or pyriform, whitish-yellow or faintly pink, sweet-sour pulpy, many-seeded, 2.5-10 cm long; pulp granular-juicy; seeds yellowish, reniform" (Stone, 1970; pp. 454-455).

"Petit arbre de 2 à 5 m de hauteur, pouvant atteindre 10 m, reconnaissable à son port tortueux, son écorce lisse de couleur verte à rougeâtre se désquamant en plaques, ses grandes fleurs à corolle blanche avec une centaine d’étamines blanches, et son gros fruit charnu globuleux comestible, de couleur jaunâtre avec une pulpe rose à rougeâtre contenant de nombreuses graines" (Meyer, 2008; p. 25).

Habitat/ecology:  "Guava grows on soils of all textures derived from most parent materials. Well-drained and poorly drained soils, soils with pH's from 4.5 to 9.4, mildly salty soils, and soils both rich and poor in basic cations are tolerated. Guava grows at near sea level in coastal environments up to 2,300 m in elevation in Ecuador (Morton 1987). It grows naturally in areas of Puerto Rico that receive from about 1000 to 3000 mm of mean annual precipitation. Guava withstands drought very well. The species is moderately intolerant of shade. It develops a broad, low crown if open grown, grows a more vertical crown with side shade, and becomes tall and spindly in intermediate crown positions. Saplings can endure a few years in the understory of low basal-area secondary forests. Guava survives the competition of weeds, grass, and brush well. Growth is benefited by root association with arbuscular mycorrhizal fungi (Samarao and Martins 1999).  This thin-barked species is easily top-killed by fire and is sensitive to frost (von Carlowitz 1991)"  (Wildland shrubs of the United States and its territories).

This evergreen tree reaches heights of 8 m. It invades disturbed sites and forms dense thickets. Cultivated in gardens but often escaped and naturalized where introduced.  Common on abandoned fields (C. W. Smith, 1985; p. 200). " A major problem in pastures, roadsides and forest planting, and is also common in plantations, but not in cultivation"  (Swarbrick, 1997; p. 18).  In Hawai‘i, "naturalized and often forming dense stands in disturbed dry, mesic, and wet forest, 15-1,220 m"  (Wagner et al., 1999; p. 972).  In Fiji, "An abundantly naturalized tree or shrub 1-10 m high from near sea level to about 800 m, often forming dense thickets in waste places, along roadsides, and in pastoral, arable, and plantation land"  (A. C. Smith, 1985; pp. 307-308).  In Niue, "a common or very common species in scrub and open secondary forest in most areas"  (Sykes, 1970; p. 131). In New Caledonia, "est vite devenu un fléau dans les pâturages. Planté à Lifou par Deplance (1864) et aujourd'hui souvent spontané aux îles Loyauté, où il est moins envahissant que sur la Grande-Terre" (MacKee, 1994; p. 106). In the Galápagos Islands, "common in the more mesic forests of the larger islands" (Wiggins & Porter, 1971; p. 708).

Propagation:  The seeds are dispersed by frugivorous birds as well as rats and feral pigs.  "The seeds are spread by birds and fruit bats and the plants regrow from stumps and buds along damaged roots."  (Swarbrick, 1997; p. 18)

Native range:  Tropical America, introduced early to Guam by the Spanish, thence to the Philippines and throughout Asia (Stone, 1970; pp. 454-455).

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	Ofu Island	introduced invasive	Space, James C./Flynn, Tim (2000) (p. 40)
American Samoa Manu‘a Islands	Ofu Island		Whistler, W. A. (1990) Voucher cited: Whistler 3460
American Samoa Manu‘a Islands	Olosega Island	introduced invasive	Space, James C./Flynn, Tim (2000) (p. 43)
American Samoa Manu‘a Islands	Ta‘u Island	introduced invasive	Space, James C./Flynn, Tim (2000) (p. 47)
American Samoa Manu‘a Islands	Ta‘u Island		Whistler, W. A. (1990) Vouchers cited: Yuncker 9293, Whistler 3147
American Samoa Manu‘a Islands	Ta‘u Island		Yuncker, T. G. (1945) (p. 54) Voucher cited: Yuncker 9293 (BISH)
American Samoa Manu‘a Islands	Ta‘u Island		Bishop Museum (Honolulu) (1939) (voucher ID: BISH 166360) Taxon name on voucher: Psidium guajava L.
American Samoa Manu‘a Islands	Ta‘u Island		Bishop Museum (Honolulu) (1975) (voucher ID: BISH 430214) Taxon name on voucher: Psidium guajava L.
American Samoa Manu‘a Islands	Ta‘u Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1991) (voucher ID: PTBG 9517) Taxon name on voucher: Psidium guajava
American Samoa Tutuila Islands	Tutuila Island	introduced invasive	Space, James C./Flynn, Tim (2000) (p. 37)
American Samoa Tutuila Islands	Tutuila Island		Whistler, W. A. (1980) (p. 131)
American Samoa Tutuila Islands	Tutuila Island	introduced invasive cultivated	Setchell, William Albert (1924) (p. 66) Apparently an escape from cultivation.
Australia (Pacific offshore islands) Lord Howe Island	Lord Howe Island	introduced	Pickard, J. (1984) (p. 207)
Australia (Pacific offshore islands) Lord Howe Island	Lord Howe Island	introduced invasive	Orchard, Anthony E., ed. (1994) (p. 20) "Spread by birds or cattle; potentially a serious weed". Voucher cited: A.C. Beauglehole 5854 (NSW)
Australia (Pacific offshore islands) Norfolk Islands	Norfolk Island	introduced invasive	Orchard, Anthony E., ed. (1994) (p. 9) "Spread by birds or cattle; potentially a serious weed". Vouchers cited: M. Lazarides 8025 (CANB, K), G. Uhe 1115(K)
Chile (offshore islands) Rapa Nui (Easter) Island	Rapa Nui (Easter) Island (Isla de Pasqua)	introduced invasive	Meyer, Jean-Yves (2008) (pp. 25, 29) "Nous avons vu des fourrés denses quasiment monospécifiques sur toute l’île, particulièrement sur la côte sud, dans les zones de pâturages et autour des sites archéologiques. Ses fruits sont consommés et disséminés par les animaux herbivores et les rats (obs. pers. et Zizka, 1991). Les excréments de bovins et chevaux sont connus pour fournir un substrat riche et favorable à la germination de ses graines. L’importance de la surface envahie à Rapa Nui ne permet qu’une lutte manuelle ou mécanique sur les surfaces planes et une lutte chimique (traitement des souches par un herbicide à base de triclopyr, des tiges et des feuilles par du glyphosate) sur des zones plus localisées. Le contrôle des mouvements du bétail permettrait de limiter sa dissémination. Le goyavier est la plante envahissante la « plus facile à contrôler » selon les gardes-parcs, et pourrait contribuer à « lutter contre l’érosion du sol et maintenir l’humidité des sols » (comm. pers. 2008)" (Meyer, 2008; p. 25).
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Anatahan Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Anatahan Island	introduced invasive	Fosberg, F. R./Falanruw, M. V. C./Sachet, M.-H. (1975) (p. 35) Voucher cited: Falanruw 1673 (US)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Northern Mariana Islands	introduced invasive	Meyer, Jean-Yves (2000) (p. 102)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Pagan Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Pagan Island	introduced invasive	Fosberg, F. R./Falanruw, M. V. C./Sachet, M.-H. (1975) (p. 35) Voucher cited: Anderson 509 (US, BISH, Fo)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Pagan Island		Bishop Museum (Honolulu) (1984) (voucher ID: BISH 635227) Taxon name on voucher: Psidium guajava L.
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Pagan Island		Bishop Museum (Honolulu) (1984) (voucher ID: BISH 1000085) Taxon name on voucher: Psidium guajava L.
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Rota Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Rota Island		Bishop Museum (Honolulu) (1978) (voucher ID: BISH 438433) Taxon name on voucher: Psidium guajava L.
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Rota Island		Bishop Museum (Honolulu) (1966) (voucher ID: BISH 653182) Taxon name on voucher: Psidium guajava L.
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Saipan Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Sarigan Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Sarigan Island	introduced invasive	Fosberg, F. R./Falanruw, M. V. C./Sachet, M.-H. (1975) (p. 35) Evans 2366 (US, BISH, Fo, NY)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Sarigan Island		Bishop Museum (Honolulu) (1966) (voucher ID: BISH 401423) Taxon name on voucher: Psidium guajava L.
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Tinian Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Tinian Island		Bishop Museum (Honolulu) (1946) (voucher ID: BISH 571608) Taxon name on voucher: Psidium guajava L.
Cook Islands Northern Cook Islands	Manihiki Atoll		McCormack, Gerald (2011)
Cook Islands Northern Cook Islands	Penrhyn (Tongareva) Island		McCormack, Gerald (2011)
Cook Islands Northern Cook Islands	Pukapuka Atoll		McCormack, Gerald (2011)
Cook Islands Northern Cook Islands	Rakahanga Atoll		McCormack, Gerald (2011)
Cook Islands Southern Cook Islands	Aitutaki Atoll		McCormack, Gerald (2011)
Cook Islands Southern Cook Islands	Aitutaki Atoll	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 9)
Cook Islands Southern Cook Islands	‘Atiu Island		McCormack, Gerald (2011)
Cook Islands Southern Cook Islands	‘Atiu Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 9)
Cook Islands Southern Cook Islands	Mangaia Island	introduced invasive	Meyer, Jean-Yves (2000) (p. 89)
Cook Islands Southern Cook Islands	Mangaia Island		McCormack, Gerald (2011)
Cook Islands Southern Cook Islands	Mangaia Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 9)
Cook Islands Southern Cook Islands	Mangaia Island		Bishop Museum (Honolulu) (1928) (voucher ID: BISH 166371) Taxon name on voucher: Psidium guajava L.
Cook Islands Southern Cook Islands	Ma‘uke Island		McCormack, Gerald (2011)
Cook Islands Southern Cook Islands	Ma‘uke Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 9)
Cook Islands Southern Cook Islands	Miti‘aro Island		McCormack, Gerald (2011)
Cook Islands Southern Cook Islands	Miti‘aro Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 9)
Cook Islands Southern Cook Islands	Palmerston (Avarau) Island		McCormack, Gerald (2011)
Cook Islands Southern Cook Islands	Rarotonga Island	introduced invasive	Meyer, Jean-Yves (2000) (p. 89)
Cook Islands Southern Cook Islands	Rarotonga Island		McCormack, Gerald (2011)
Cook Islands Southern Cook Islands	Rarotonga Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 9)
Cook Islands Southern Cook Islands	Rarotonga Island		Bishop Museum (Honolulu) (1929) (voucher ID: BISH 166372) Taxon name on voucher: Psidium guajava L.
Cook Islands Southern Cook Islands	Rarotonga Island		Bishop Museum (Honolulu) (1977) (voucher ID: BISH 420140) Taxon name on voucher: Psidium guajava L.
Ecuador (Galápagos Islands) Floreana Group	Floreana Island	introduced invasive cultivated	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Isabela Group	Isabela Island	introduced invasive cultivated	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Isabela Group	Volcán Alcedo, Isabela Island	introduced invasive cultivated	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Isabela Group	Volcán Sierra Negra, Isabela Island	introduced invasive cultivated	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) San Cristóbal Group	San Cristóbal Island	introduced invasive cultivated	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Santa Cruz Group	Santa Cruz Island	introduced invasive cultivated	Charles Darwin Foundation (2008)
Federated States of Micronesia Chuuk Islands	Fefan Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Federated States of Micronesia Chuuk Islands	Fefan Island	introduced	Space, James C./Waterhouse, Barbara/Denslow, Julie S./Nelson, Duane/Mazawa, Thomas R. (2000) (p. 29)
Federated States of Micronesia Chuuk Islands	Tol Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Federated States of Micronesia Chuuk Islands	Tol Island	introduced	Space, James C./Waterhouse, Barbara/Denslow, Julie S./Nelson, Duane/Mazawa, Thomas R. (2000) (p. 29)
Federated States of Micronesia Chuuk Islands	Weno (Moen) Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Federated States of Micronesia Chuuk Islands	Weno (Moen) Island	introduced	Space, James C./Waterhouse, Barbara/Denslow, Julie S./Nelson, Duane/Mazawa, Thomas R. (2000) (p. 29)
Federated States of Micronesia Kosrae Island	Kosrae Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Federated States of Micronesia Kosrae Island	Kosrae Island	introduced cultivated	Lorence, David H./Flynn, Timothy (2010) (p. 21)
Federated States of Micronesia Pohnpei Islands	Pohnpei Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Federated States of Micronesia Pohnpei Islands	Pohnpei Island	introduced	Glassman, S. F. (1952) (p. 61)
Federated States of Micronesia Pohnpei Islands	Pohnpei Island	introduced cultivated	Herrera, Katherine/Lorence, David H./Flynn, Timothy/Balick, Michael J. (2010) (p. 117) Vouchers cited: M.J. Balick 3821 (NY), M.J. Balick 3830 (NY, PTBG), M.J. Balick 4233 (BISH, NY, PTBG), J. Bee 22 (NY), A. Dores 51 (BISH, NY, PTBG), A. Dores 179 (NY, PTBG), B. Ekiek 42 (BISH, NY, PTBG), F.R. Fosberg 58498 (BISH), P. Raynor 27 (NY), N.S. Tangalin 1257 (PTBG), C.Y.C. Wong 66 (BISH)
Federated States of Micronesia Pohnpei Islands	Pohnpei Island		Bishop Museum (Honolulu) (1946) (voucher ID: BISH 571609) Taxon name on voucher: Psidium guajava L.
Federated States of Micronesia Pohnpei Islands	Pohnpei Island		Bishop Museum (Honolulu) (1978) (voucher ID: BISH 653172) Taxon name on voucher: Psidium guajava L.
Federated States of Micronesia Pohnpei Islands	Pohnpei Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1997) (voucher ID: PTBG 34681) Taxon name on voucher: Psidium guajava L.
Federated States of Micronesia Pohnpei Islands	Pohnpei Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2003) (voucher ID: PTBG 43685) Taxon name on voucher: Psidium guajava
Federated States of Micronesia Pohnpei Islands	Pohnpei Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2006) (voucher ID: PTBG 49583) Taxon name on voucher: Psidium guajava
Federated States of Micronesia Pohnpei Islands	Pohnpei Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2007) (voucher ID: PTBG 50134) Taxon name on voucher: Psidium guajava
Federated States of Micronesia Yap Islands	Ulithi Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Federated States of Micronesia Yap Islands	Ulithi Atoll		Bishop Museum (Honolulu) (1965) (voucher ID: BISH 81684) Taxon name on voucher: Psidium guajava L.
Federated States of Micronesia Yap Islands	Yap (Waqab) Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Federated States of Micronesia Yap Islands	Yap (Waqab) Island		Bishop Museum (Honolulu) (1948) (voucher ID: BISH 166400) Taxon name on voucher: Psidium guajava L.
Fiji Fiji Islands	Lakemba Island	introduced invasive	Smith, Albert C. (1985) (pp. 307-308) Voucher cited: Garnock-Jones 817
Fiji Fiji Islands	Ovalau Island	introduced invasive	Smith, Albert C. (1985) (pp. 307-308) Voucher cited: DA 1341
Fiji Fiji Islands	Rotuma Island		Bishop Museum (Honolulu) (1938) (voucher ID: BISH 618539) Taxon name on voucher: Psidium guajava L.
Fiji Fiji Islands	Vanua Levu Island	introduced invasive	Smith, Albert C. (1985) (pp. 307-308) Vouchers cited: DA 8737, Bierhorst F78
Fiji Fiji Islands	Vanua Mbalavu Island	introduced invasive	Smith, Albert C. (1985) (pp. 307-308) Voucher cited: Garnock-Jones 1085
Fiji Fiji Islands	Viti Levu Island	introduced invasive	Smith, Albert C. (1985) (pp. 307-308) Vouchers cited: Greenwood 352, DA 10702, Smith 6079, H.B.R. Parham 125, DA 11294, Valentine 15, Valentine 16, DA 10598, DA 3698
Fiji Fiji Islands	Viti Levu Island		Bishop Museum (Honolulu) (1955) (voucher ID: BISH 14870) Taxon name on voucher: Psidium guajava L.
Fiji Fiji Islands	Viti Levu Island		Bishop Museum (Honolulu) (1937) (voucher ID: BISH 166401) Taxon name on voucher: Psidium guajava L.
French Polynesia Gambier Islands	Agakauitai Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Naturalisée
French Polynesia Gambier Islands	Akamaru Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Naturalisée
French Polynesia Gambier Islands	Akamaru Island	introduced	St. John, Harold (1988) (p. 21) Voucher cited: St. John 14688 (BISH)
French Polynesia Gambier Islands	Aukena Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Naturalisée
French Polynesia Gambier Islands	Aukena Island	introduced	St. John, Harold (1988) (p. 21) Voucher cited: St. John 14610 (BISH)
French Polynesia Gambier Islands	Mangareva (Gambier) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Naturalisée
French Polynesia Gambier Islands	Mangareva (Gambier) Island	introduced	St. John, Harold (1988) (p. 21) Voucher cited: Agassiz 101 (GH)
French Polynesia Gambier Islands	Taravai Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Naturalisée
French Polynesia Marquesas Islands	Eiao Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Naturalisée
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2008)
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Voucher cited: J. Florence, D.H. Lorence & W.L. Wagner 9480 (PAP) Naturalisée
French Polynesia Marquesas Islands	Hiva Oa Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2008)
French Polynesia Marquesas Islands	Hiva Oa Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Vouchers cited: B.G. Decker 636 (PAP), B.G. Decker 1039 (PAP) Naturalisée
French Polynesia Marquesas Islands	Hiva Oa Island		Bishop Museum (Honolulu) (1988) (voucher ID: BISH 1000520) Taxon name on voucher: Psidium guajava L.
French Polynesia Marquesas Islands	Hiva Oa Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2003) (voucher ID: PTBG 41072) Taxon name on voucher: Psidium guajava
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	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Voucher cited: J. Florence 4190 (PAP) Naturalisée
French Polynesia Marquesas Islands	Nuku Hiva (Nukahiva) Island		Bishop Museum (Honolulu) (1982) (voucher ID: BISH 555117) Taxon name on voucher: Psidium guajava L.
French Polynesia Marquesas Islands	Tahuata (Tuhuata) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2008)
French Polynesia Marquesas Islands	Tahuata (Tuhuata) Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2003) (voucher ID: PTBG 39389) Taxon name on voucher: Psidium guajava
French Polynesia Marquesas Islands	Tahuata (Tuhuata) Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2003) (voucher ID: PTBG 39493) Taxon name on voucher: Psidium guajava
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2008)
French Polynesia Marquesas Islands	Ua Pou (Huapu, Uapou, Uapu) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2008)
French Polynesia Society Islands	Bora Bora Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Voucher cited: J. Florence 12022 (PAP) Naturalisée
French Polynesia Society Islands	Bora Bora Island		Bishop Museum (Honolulu) (1993) (voucher ID: BISH 658473) Taxon name on voucher: Psidium guajava L.
French Polynesia Society Islands	Huahine Island		Fosberg, F. R. (1997) (p. 82)
French Polynesia Society Islands	Huahine Island		Bishop Museum (Honolulu) (1979) (voucher ID: BISH 619015) Taxon name on voucher: Psidium guajava L.
French Polynesia Society Islands	Maupiti (Maurua) Island	introduced invasive cultivated	Fosberg, F. R./Sachet, M.-H. (1987) (p. 53) Voucher cited: Morris 24 (US)
French Polynesia Society Islands	Maupiti (Maurua) Island		Bishop Museum (Honolulu) (1985) (voucher ID: BISH 614966) Taxon name on voucher: Psidium guajava L.
French Polynesia Society Islands	Moorea Island	introduced invasive cultivated	Welsh, S. L. (1998) (p. 200) Vouchers cited: Florence 4918
French Polynesia Society Islands	Moorea Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Vouchers cited: J. Florence 2093 (PAP), J. Florence 4918 (PAP) Naturalisée
French Polynesia Society Islands	Moorea Island		Bishop Museum (Honolulu) (1983) (voucher ID: BISH 492585) Taxon name on voucher: Psidium guajava L.
French Polynesia Society Islands	Raiatea (Havai) Island	introduced invasive cultivated	Welsh, S. L. (1998) (p. 200) Vouchers cited: BRY 25416, BRY 26484, BRY 26644
French Polynesia Society Islands	Raiatea (Havai) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Naturalisée
French Polynesia Society Islands	Taha‘a Island		Fosberg, F. R. (1997) (p. 82)
French Polynesia Society Islands	Taha‘a Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Naturalisée
French Polynesia Society Islands	Tahiti Island	introduced invasive cultivated	Welsh, S. L. (1998) (p. 200) Vouchers cited: Florence & Birnbaum 9775, BRY 26020
French Polynesia Society Islands	Tahiti Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Vouchers cited: J. Florence 3664 (PAP), J. Florence 9269 (PAP), J. Florence & P. Birnbaum 9775 (PAP), P. Birnbaum 99 (PAP) Naturalisée
French Polynesia Society Islands	Tahiti Island		Bishop Museum (Honolulu) (1988) (voucher ID: BISH 601585) Taxon name on voucher: Psidium guajava L.
French Polynesia Tuamotu Archipelago	Makatea (Ma‘atea) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Voucher cited: J. Florence 4059 (PAP) Naturalisée
French Polynesia Tuamotu Archipelago	Manihi Atoll	introduced cultivated	Sachet, M-H. (1983) (p. 32) Voucher cited: Brooks & Brooks 34 (BISH)
French Polynesia Tuamotu Archipelago	Niau Atoll	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Voucher cited: J. Florence 10158 (PAP) Naturalisée
French Polynesia Tuamotu Archipelago	Tikehau (Tikahau) Atoll	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Voucher cited: J. Florence 7117 (PAP) Naturalisée
French Polynesia Austral (Tubuai) Islands	Raivavae (Raevavae) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Voucher cited: J. Florence 5706 (PAP) Naturalisée
French Polynesia Austral (Tubuai) Islands	Raivavae (Raevavae) Island		Bishop Museum (Honolulu) (1983) (voucher ID: BISH 553672) Taxon name on voucher: Psidium guajava L.
French Polynesia Austral (Tubuai) Islands	Rapa Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Voucher cited: J. Florence 6387 (PAP) Naturalisée
French Polynesia Austral (Tubuai) Islands	Rapa Island		Bishop Museum (Honolulu) (1984) (voucher ID: BISH 493227) Taxon name on voucher: Psidium guajava L.
French Polynesia Austral (Tubuai) Islands	Rimatara (Rimitara) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Naturalisée
French Polynesia Austral (Tubuai) Islands	Rurutu Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Voucher cited: J. Florence 5536 (PAP), J. Florence 6111 (PAP) Naturalisée
French Polynesia Austral (Tubuai) Islands	Rurutu Island		Bishop Museum (Honolulu) (1983) (voucher ID: BISH 552836) Taxon name on voucher: Psidium guajava L.
French Polynesia Austral (Tubuai) Islands	Rurutu Island		Bishop Museum (Honolulu) (1983) (voucher ID: BISH 553146) Taxon name on voucher: Psidium guajava L.
French Polynesia Austral (Tubuai) Islands	Tubuai Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2011) Naturalisée
Guam Guam Island	Guam Island	introduced invasive cultivated	Stone, Benjamin C. (1970) (pp. 454-455) Vouchers cited: Stone 3900 (GUAM), Stone 5130 (GUAM)
Guam Guam Island	Guam Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Guam Guam Island	Guam Island		Bishop Museum (Honolulu) (1919) (voucher ID: BISH 166391) Taxon name on voucher: Psidium guajava L.
Guam Guam Island	Guam Island		Bishop Museum (Honolulu) (1916) (voucher ID: BISH 166392) Taxon name on voucher: Psidium guajava L.
Guam Guam Island	Guam Island		Bishop Museum (Honolulu) (1911) (voucher ID: BISH 166393) Taxon name on voucher: Psidium guajava L.
Guam Guam Island	Guam Island		Bishop Museum (Honolulu) (year unknown) (voucher ID: BISH 166394) Taxon name on voucher: Psidium guajava L.
Guam Guam Island	Guam Island		Bishop Museum (Honolulu) (1918) (voucher ID: BISH 166395) Taxon name on voucher: Psidium guajava L.
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 972)
State of Hawaii Hawaiian Islands	Kaho‘olawe Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 972)
State of Hawaii Hawaiian Islands	Kaua‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 972)
State of Hawaii Hawaiian Islands	Lāna‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 972)
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 972)
State of Hawaii Hawaiian Islands	Moloka‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 972)
State of Hawaii Hawaiian Islands	Ni‘ihau Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 972)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 972)
Japan (offshore islands) Bonin (Ogasawara) Islands	Bonin (Ogasawara) Islands	introduced invasive	Toyoda, Takeshi (2003) (p. 285) Naturalized
Japan (offshore islands) Bonin (Ogasawara) Islands	Bonin (Ogasawara) Islands	introduced	Kato, Hidetoshi (2007)
Kiribati Banaba Island	Banaba (Ocean) Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Kiribati Line Islands	Tabuaeran (Fanning) Atoll	introduced cultivated	Wester, Lyndon (1985) (p. 28)
Kiribati Line Islands	Tabuaeran (Fanning) Atoll	introduced cultivated	Christophersen, Erling (1927) (p. 77)
Kiribati Line Islands	Teraina (Washington) Island	introduced cultivated	Wester, Lyndon (1985) (p. 28)
Kiribati Line Islands	Teraina (Washington) Island	introduced cultivated	Christophersen, Erling (1927) (pp. 56, 77) At the settlement.
Kiribati Tungaru (Gilbert) Islands	Tarawa Atoll		Swarbrick, John T. (1997) (p. 96) Cultivated? Presence not verified.
Marshall Islands Ralik Chain	Kwajalein (Kuwajleen) Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Marshall Islands Ralik Chain	Kwajalein (Kuwajleen) Atoll	introduced cultivated	Whistler, W. A./Steele, O. (1999) (p. 101)
Marshall Islands Ralik Chain	Kwajalein (Kuwajleen) Atoll		Bishop Museum (Honolulu) (1966) (voucher ID: BISH 426299) Taxon name on voucher: Psidium guajava L.
Marshall Islands Ratak Chain	Arno Atoll	introduced cultivated	Vander Velde, Nancy/Vander Velde, Brian (2007) (p. 10) "Rare; single tree planted in front of former R&D farm".
Marshall Islands Ratak Chain	Majuro (Mãjro) Atoll	introduced cultivated	Vander Velde, Nancy (2003) (p. 111)
Nauru Nauru Island	Nauru Island	introduced invasive	Meyer, Jean-Yves (2000) (p. 99)
Nauru Nauru Island	Nauru Island	introduced invasive cultivated	Thaman, R. R./Fosberg, F. R./Manner, H. I./Hassall, D. C. (1994) (pp. 174-175) Vouchers cited: Fosberg 58650 (US), Fosberg 58767 (US), Scully 105N (US), Thaman & Manner 94 (SUVA)
Nauru Nauru Island	Nauru Island		Bishop Museum (Honolulu) (1978) (voucher ID: BISH 438359) Taxon name on voucher: Psidium guajava L.
Nauru Nauru Island	Nauru Island		Bishop Museum (Honolulu) (1978) (voucher ID: BISH 438360) Taxon name on voucher: Psidium guajava L.
Nauru Nauru Island	Nauru Island		Bishop Museum (Honolulu) (1978) (voucher ID: BISH 438364) Taxon name on voucher: Psidium guajava L.
New Caledonia Îles Loyauté (Loyalte Islands)	Île Lifou	introduced invasive cultivated	MacKee, H. S. (1994) (p. 106) Voucher cited: Däniker3026 (Z)
New Caledonia New Caledonia	New Caledonia Islands	introduced invasive	Meyer, Jean-Yves (2000) (p. 99) "Dry forests, savannas"
New Caledonia New Caledonia	New Caledonia Islands	introduced invasive cultivated	Gargominy, Oliver/Bouchet, Philipe/Pascal, Michel/Jaffre, Tanguy/Tourneu, Jean-Christophe (1996) (p. 382) Est vite devenu un fléau dans les pâturages.
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced invasive cultivated	MacKee, H. S. (1994) (p. 106) Vouchers cited: Pancher 9, Cribs 705, Guillaumin & Baumann 7572, MacKee 34592
New Caledonia New Caledonia Archipelago	Île Grande Terre		Bishop Museum (Honolulu) (1992) (voucher ID: BISH 654746) Taxon name on voucher: Psidium guajava L.
New Zealand (offshore islands) Kermadec Islands	Raoul Island	introduced invasive	Sykes, W. R. (1977) (p. 119)
New Zealand (offshore islands) Kermadec Islands	Raoul Island	introduced invasive	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 867) "On greatly modified terraces, forming large suckering thickets until recently; these have been eliminated and occasional young plants are now found only in the northern part of the island".
Niue Niue	Niue Island	introduced invasive	Sykes, W. R. (1970) (p. 131) Vouchers cited: CHR 170469, CHR 170473
Niue Niue	Niue Island	introduced invasive	Whistler, W. A. (1988) (p. 30)
Niue Niue	Niue Island	introduced invasive	Space, James C./Flynn, Tim (2000) (p. 25)
Niue Niue	Niue Island	introduced invasive	Whistler, W. A./Atherton, J. (1997) (p. 39)
Niue Niue	Niue Island	introduced invasive	Yuncker, T. G. (1943) (p. 90) Voucher cited: Yuncker 9650 (BISH) "Common throughout the island and one of the first to occupy newly cleared land"
Niue Niue	Niue Island	introduced invasive cultivated	Space, James C./Waterhouse, Barbara M./Newfield, Melanie/Bull, Cate (2004) (p. 12)
Palau Palau (main island group)	Angaur Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Palau Palau (main island group)	Angaur Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 88)
Palau Palau (main island group)	Angaur Island		Beleu National Museum (Republic of Palau. Koror.) (1977) (voucher ID: BNM 900) Taxon name on voucher: Psidium guajava L.
Palau Palau (main island group)	Babeldaob Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Palau Palau (main island group)	Babeldaob Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 86)
Palau Palau (main island group)	Babeldaob Island	introduced invasive	Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 12)
Palau Palau (main island group)	Koror Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 192)
Palau Palau (main island group)	Koror Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 82)
Palau Palau (main island group)	Koror Island		Bishop Museum (Honolulu) (1967) (voucher ID: BISH 428562) Taxon name on voucher: Psidium guajava L.
Palau Palau (main island group)	Koror Island		Bishop Museum (Honolulu) (1967) (voucher ID: BISH 437999) Taxon name on voucher: Psidium guajava L.
Palau Palau (main island group)	Koror Island		Beleu National Museum (Republic of Palau. Koror.) (1967) (voucher ID: BNM 563) Taxon name on voucher: Psidium guajava L.
Palau Palau (main island group)	Malakal Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 82)
Palau Palau (main island group)	Ngerkebesang Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 82)
Palau Palau (main island group)	Peleliu Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 90)
Palau Rock Islands	Bkul a Chesemiich Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 92)
Palau Rock Islands	Bkul a Chesemiich Island	introduced invasive	Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 12)
Palau Rock Islands	Ngerchong Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 92)
Palau Sonsorol Group	Sonsorol Island	introduced cultivated	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 94)
Papua New Guinea Bismarck Archipelago	Bismarck Archipelago	introduced invasive cultivated	Peekel, P. G. [translated by E. E. Henty] (1984) (pp. 407-408) Introduced throughout the tropics and ± naturalized.
Papua New Guinea Papua New Guinea (eastern New Guinea Island)	Papua New Guinea (eastern New Guinea Island)		Waterhouse, D. F. (1997) (p. 64)
Philippines Philippine Islands	Philippine Islands	introduced invasive	Merrill, Elmer D. (1923) (p. 155) Usually very common in thickets and seconaary forests at low altitudes, ascending to at least 1,500 m; thoroughly naturalized.
Pitcairn Islands Pitcairn Islands	Pitcairn Island	introduced invasive	Meyer, Jean-Yves (2000) (p. 103) "Secondary scrub".
Pitcairn Islands Pitcairn Islands	Pitcairn Island	introduced	St. John, H. (1987) (p. 45) Vouchers cited: Ross 12, St. John 15038
Samoa Western Samoa Islands	Savai‘i Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 8)
Samoa Western Samoa Islands	Savai‘i Island		Bishop Museum (Honolulu) (1929) (voucher ID: BISH 166359) Taxon name on voucher: Psidium guajava L.
Samoa Western Samoa Islands	Savai‘i Island		Bishop Museum (Honolulu) (1973) (voucher ID: BISH 417659) Taxon name on voucher: Psidium guajava L.
Samoa Western Samoa Islands	Upolu Island	introduced invasive	Space, James C./Flynn, Tim (2002) (p. 8)
Samoa Western Samoa Islands	Upolu Island		Bishop Museum (Honolulu) (1968) (voucher ID: BISH 28950) Taxon name on voucher: Psidium guajava L.
Samoa Western Samoa Islands	Upolu Island		Bishop Museum (Honolulu) (1894) (voucher ID: BISH 166358) Taxon name on voucher: Psidium guajava L.
Solomon Islands Solomon Islands	Solomon Islands	introduced invasive cultivated	Hancock, I. R./Henderson, C. P. (1988) (p. 103)
Solomon Islands Solomon Islands	Solomon Islands	introduced invasive cultivated	Shine, C./Reaser, J. K./Gutierrez, A. T., eds. (2003) (p. 166) Dominant invader.
Tonga Ha‘apai Group	Ha‘ano Island	introduced invasive	Space, James C./Flynn, Tim (2001) (p. 8)
Tonga Ha‘apai Group	Lifuka and Foa Islands	introduced invasive	Space, James C./Flynn, Tim (2001) (p. 8)
Tonga Ha‘apai Group	‘Uiha Island	introduced invasive	Space, James C./Flynn, Tim (2001) (p. 8)
Tonga Tonga Islands	Tonga Islands	introduced invasive	Yuncker, T. G. (1959) (p. 200) "Occasional to frequent throughout Tonga".
Tonga Tonga Islands	Tonga Islands		Bishop Museum (Honolulu) (1969) (voucher ID: BISH 698740) Taxon name on voucher: Psidium guajava L.
Tonga Tongatapu Group	‘Eua Island	introduced invasive	Space, James C./Flynn, Tim (2001) (p. 8)
Tonga Tongatapu Group	‘Eua Island	introduced invasive	Yuncker, T. G. (1959) (p. 200) Large colonies.
Tonga Tongatapu Group	‘Eua Island		Bishop Museum (Honolulu) (1960) (voucher ID: BISH 166357) Taxon name on voucher: Psidium guajava L.
Tonga Tongatapu Group	‘Eua Island		Bishop Museum (Honolulu) (1979) (voucher ID: BISH 664374) Taxon name on voucher: Psidium guajava L.
Tonga Tongatapu Group	Tongatapu Island	introduced invasive	Space, James C./Flynn, Tim (2001) (p. 8)
Tonga Tongatapu Group	Tongatapu Island		Whistler, W. A. (1992) (p. 49) Voucher cited: Ilolahia 133
Tonga Tongatapu Group	Tongatapu Island	introduced invasive	Yuncker, T. G. (1959) (p. 200) Voucher cited: Yuncker 15112
Tonga Tongatapu Group	Tongatapu Island		Bishop Museum (Honolulu) (1953) (voucher ID: BISH 166356) Taxon name on voucher: Psidium guajava L.
Tonga Vava‘u Group	Niuatoputapu Island		Bishop Museum (Honolulu) (1976) (voucher ID: BISH 429123) Taxon name on voucher: Psidium guajava L.
Tonga Vava‘u Group	Vava‘u Island	introduced invasive	Space, James C./Flynn, Tim (2001) (p. 8)
Tuvalu Tuvalu (Ellis) Islands	Tuvalu Islands		Swarbrick, John T. (1997) (p. 96)
United States (other Pacific offshore islands) Midway Atoll	Sand Island	introduced cultivated	Starr, Forest/Starr, Kim/Loope, Lloyd (2008) (pp. B-12)
United States (other Pacific offshore islands) Wake Islands	Wake Island		Bishop Museum (Honolulu) (1998) (voucher ID: BISH 690626) Taxon name on voucher: Psidium guajava L.
Vanuatu New Hebrides Islands	Aneityum Island		Bishop Museum (Honolulu) (1986) (voucher ID: BISH 524023) Taxon name on voucher: Psidium guajava L.
Vanuatu New Hebrides Islands	Vanuatu (Republic of)	introduced invasive	Meyer, Jean-Yves (2000) (p. 107)
Vanuatu New Hebrides Islands	Vanuatu (Republic of)	introduced invasive	Shine, C./Reaser, J. K./Gutierrez, A. T., eds. (2003) (p. 180)
Wallis and Futuna Wallis and Futuna (Horne) Islands	Wallis (‘Uvea) Island	introduced invasive	Meyer, Jean-Yves (2007) (pp. 10, 36) Est localement naturalisé mais peu abondant.  Une ouverture des zones boisées (incendies, cyclones notamment) pourrait favoriser son expansion.
Wallis and Futuna Wallis and Futuna (Horne) Islands	Wallis and Futuna Islands		Whistler, W. A. (1988) (p. 30)
Wallis and Futuna Wallis and Futuna (Horne) Islands	Wallis and Futuna Islands	introduced	Meyer, Jean-Yves (2000) (p. 107) "Potential invader". Lowlands.

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)	Northern Territory	introduced invasive cultivated	Csurhes, S./Edwards, R. (1998) (pp. 192-193)
Australia Australia (continental)	Queensland	introduced invasive cultivated	Csurhes, S./Edwards, R. (1998) (pp. 192-193)
China China	China (People's Republic of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 297)
China China	Hong Kong	introduced invasive cultivated	Wu, Te-lin (2001) (p. 163)
Colombia Colombia	Colombia (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Costa Rica Costa Rica	Costa Rica (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Ecuador (Mainland) Ecuador	Ecuador (Republic of) (continental)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
El Salvador El Salvador	El Salvador (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Guatemala Guatemala	Guatemala (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Honduras Honduras	Honduras (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Japan Japan	Japan (country)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 297)
Japan Japan	Japan (country)	introduced	Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 186)
Mexico Mexico	Mexico (United Mexican States)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Nicaragua Nicaragua	Nicaragua (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Panama Panama	Panama (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Perú Perú	Perú (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Singapore Singapore	Singapore (Republic of)	introduced invasive	Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 73) Casual
Thailand Thailand	Thailand (Kingdom of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (pp. 297-298)

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 invasive cultivated	Swarbrick, J. T. (1997) (pp. 60, 125)
Australia (Indian Ocean offshore islands) Cocos (Keeling) Islands	Cocos (Keeling) Islands	introduced	Williams, D. G. (1994) (p. 23)
British Indian Ocean Territory Chagos Archipelago	Diego Garcia Island	introduced cultivated	Rivers, Julie (2004) (p. 8)
Comoros Comoro Islands	Anjouan (Nzwani) Island	introduced invasive	Vos, P. (2004) (p. 6)
Comoros Comoro Islands	Grande Comore (Njazidja) Island	introduced invasive	Vos, P. (2004) (p. 6)
Comoros Comoro Islands	Mohéli (Mwali) Island	introduced invasive	Vos, P. (2004) (p. 6)
La Réunion (France) La Réunion Island	La Réunion Island	introduced invasive	MacDonald, I. A. W./Thebaud, C./Strahm, W. A./Strasberg, D. (1991) (pp. 51-61)
La Réunion (France) La Réunion Island	La Réunion Island	introduced invasive cultivated	Lavergne, Christophe (2006) "Cultivé/naturalisé"
Maldives Maldive Islands	Malè Atoll	cultivated	Fosberg, F. R. (1957) (p. 29)
French Territory of Mayotte Mayotte Islands	Mayotte Island	introduced invasive	Vos, P. (2004) (p. 6)
Seychelles Seychelles Islands	Agalega Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Stoddart, D. R. (1983) (p. 129)

Also reported from
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
South Africa South Africa	South Africa (Republic of)	introduced invasive cultivated	Csurhes, S./Edwards, R. (1998) (pp. 192-193)
United States (continental except west coast) United States (other states)	United States (other states)	introduced	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2011) Louisiana
United States (continental except west coast) United States (other states)	USA (Florida)	introduced	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2011)

Comments:  A major invasive species in the Galápagos Islands.

A problem in Hawai‘i, the Marquesas (French Polynesia), New Caledonia and Fiji.

Very invasive in Tonga, especially on ‘Eua (Space & Flynn, 2001).

Common, and in the future may well become even more widespread in the Cook Islands (Space & Flynn, 2002).

The fruit is a host to fruit flies (Motooka et al., 2003).

Control: 

Physical: "Cattle tend to ignore the leaves except when they are under intensive grazing management and grazing very succulent forage; then they develop a craving for roughage.  Goats and sheep graze the leaves and strip the bark. Goats have been used to control guava at Kapapala Ranch on Hawai‘i (An Peischel)."  (Motooka et al., 2003).  "Controlled by cultivation.  Tolerant to fire and unpalatable to stock.  Small plants suppressed, but not killed, by slashing" (Swarbrick, 1997; pp. 28-29).

Chemical:  "Probably susceptible to: 1) foliar application of arboricides such as picloram, metsulfuorn-methyl, glyphosate, and triclopyr at standard rates and dilutions; 2) stem injections and cut stump application of the same herbicides; 3) soil applications of hexazinone, karbutilate, fluroxypyr and bromacil at standard rates" (Swarbrick, 1997; pp. 28-29). 

"Guava is sensitive to foliar applications of triclopyr, dicamba and 2,4-D at 1 lb/acre and to cut surface applications of concentrates of these herbicides; very sensitive to basal bark treatments of triclopyr ester and 2,4-D ester at 2% and 4% of product, respectively, in diesel or crop oil; very sensitive to soil-applied tebuthiuron at 2 lb/acre. Very sensitive to very-low volume basal bark applications of 20% triclopyr ester product in oil. A small-leafed shrubby form of guava appears to be tolerant of foliar applied herbicides but sensitive to tebuthiuron." (Motooka et al., 2003).

Additional information:
Excerpt from the book "Weeds of Hawaii‘s Pastures and Natural Areas; An Identification and Management Guide" (Motooka et al., 2003). (PDF format).
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).
Information from the Purdue University NewCROP web site.
Fact sheet from "Common forest trees of Hawaii" (PDF format).
Fact sheet from the Government of Queensland, Australia (PDF format).
Fact sheet from "Wildland shrubs of the United States and its territories: thamnic descriptions" (PDF format).
Photos and additional information at University of Florida, Center for Aquatic and Invasive Plants.
Additional information at the Woody Plant Ecology web site.

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

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

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

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