Amaranthus viridis L., Amaranthaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Amaranthus gracilis Desf., nom. nud.

Common name(s): [more details]

Chamorro: kuletes apaká

Chinese: zhou guo xian

English: Prince of Wales feather, green amaranth, pigweed, slender amaranth, tropical green amaranth

Fijian: moca, ndriti, ngasau ni vuaka, tubua, tumbua

French: amarante verte, brede malabar, fleur de jalousie

Hawaiian: ‘aheahea, pākaikai, pakai, pakapakai

Hindi: chauraiya, choroiya

I-Kiribati: te moota, te mota

Japanese: aobiyu, honaga-inubiyu

Maori (Cook Islands): pu‘ekao, va‘ine ‘ara

Marquesan: puaio, upo‘oti‘i

Niuean: katule

Spanish: amarantus, bledo, bredo blanco

Tahitian: ea ea mata, huinihera, upooti

Tongan: longolongo‘uha, tupu‘a

Ulithian: waluwol

Habit:  herb

Description:  "Monoecious annual herbs; stems erect or occasionally ascending, 1-8 (-10) dm long, sparingly to densely branched, striate, glabrous and usually becoming pubescent with multicellular hairs above.  Leaves deltate-ovate to narrowly rhombic, blades 2-7 cm long, 1.5-5.5 cm wide, glabrous or lower surface pilose along the veins, apex usually narrow and with a small narrow emargination, petioles 1-10 cm long.  Flowers green, in slender, axillary or terminal and often paniculate spikes, sometimes in axillary clusters in lower part of plant, both sexes mixed throughout the spikes, but pistillate flowers more numerous, bracts and bracteoles whitish, deltate-ovate to broadly lanceolate, membranous, with a short, pale or reddish awn; sepals 3 (4), those of staminate flowers ovate-oblong, ca. 1.5 mm long, apex acute, mucronate, those of pistillate flowers narrowly spatulate to oblong, 1.3-1.8 mm long, apex more or less mucronate; stigmas 2-3.  Fruit subglobose, 1.3-1.5 mm long, not or only slightly exceeding the sepals, indehiscent or rupturing irregularly at maturity, conspicuously rugose throughout.  Seeds dark brown to black, more or less shiny, slightly compressed, 1-1.3 mm long, reticulate and with shallow outgrowths on the reticulum"  (Wagner et al., 1999; p. 189).

Habitat/ecology:  "A weed, but rarely also cultivated (for edible leaves); often prostrate, flattened; waysides, vacant lots, crevices of sidewalks, edge of asphalt strips, etc." (Stone, 1970; p. 269). "Occasional in croplands and waste places." (Whistler, 1988; p. 7).

In Hawai‘i, "the most common naturalized species of Amaranthus, occurring in low elevation, disturbed habitats" (Wagner et al., 1999; p. 189).  In Fiji, "occurring near sea level as a naturalized weed of cultivation and waste places, often locally abundant, common along roadsides and in gardens, plantations and canefields" (Smith, 1981; p. 286).  On Niue, "a common weed around houses and in plantations" (Sykes, 1970; p. 41). In Tonga, "a weed of plantations and waste areas" (Yuncker, 1959; p. 107). In New Zealand, "crops, sand dunes" (Webb et al., 1988; p. 108).  In Papua New Guinea, "occurring as a weed in gardens and waste places, also in secondary vegetation,  at 0-2000 m altitude"  (Womersley, 1978; p. 30).

Propagation:  Seed

Native range:  "Origin obscure though possibly South America; widely naturalized tropical weed, adventive to warm-temperate regions" (GRIN)

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		Yuncker, T. G. (1945) (p. 37) Foucher cited: Garber 1069 (BISH)
American Samoa Manu‘a Islands	Ta‘u Island		Whistler, W. A. (1990) Vouchers cited: Whistler 1374
American Samoa Manu‘a Islands	Ta‘u Island		Yuncker, T. G. (1945) (p. 37) Vouchers cited: Yuncher 9197 (BISH), W. Harris 9 (BISH), W. Harris 262 (BISH)
American Samoa Tutuila Islands	Tutuila Island		Swarbrick, John T. (1997) (p. 88)
American Samoa Tutuila Islands	Tutuila Island		Anon. (1988) (p. 1)
American Samoa Tutuila Islands	Tutuila Island	introduced invasive	Setchell, William Albert (1924) (p. 96)
Australia (Pacific offshore islands) Lord Howe Island	Lord Howe Island	introduced	Pickard, J. (1984) (p. 205)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Agrigan (Agrihan) Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Agrigan (Agrihan) Island	introduced invasive	Fosberg, F. R./Falanruw, M. V. C./Sachet, M.-H. (1975) (p. 23) Voucher cited: Fosberg 2160 (US)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Aguijan (Agiguan, Aguihan) Island	introduced	Raulerson, L. (2006) (p. 29)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Alamagan Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Alamagan Island	introduced invasive	Fosberg, F. R./Falanruw, M. V. C./Sachet, M.-H. (1975) (p. 23) Vouchers cited: Falanruw 1947 (US), Fosberg 31653 (US)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Anatahan Island	introduced	Raulerson, L. (2006) (p. 29)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Farallon de Medinilla (Marpi, Medinilla) Island		Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Pagan Island	introduced	Raulerson, L. (2006) (p. 29)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Pagan Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1981) (voucher ID: PTBG 26474) Taxon name on voucher: Amaranthus viridis
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Rota Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Rota Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1966) (voucher ID: PTBG 26472) Taxon name on voucher: Amaranthus viridis
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Sarigan Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
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. 23) Vouchers cited: Falanruw 1732 (US), Falanruw 1786 (US), Evans 2358 (US, BISH, Fo, NY), Falanruw 1745 (US)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Tinian Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Tinian Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1985) (voucher ID: PTBG 26470) Taxon name on voucher: Amaranthus viridis
Commonwealth of the Northern Mariana Islands (US) Saipan	Saipan Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
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	Miti‘aro Island		McCormack, Gerald (2013)
Cook Islands Southern Cook Islands	Rarotonga Island		McCormack, Gerald (2013)
Ecuador (Galápagos Islands) Isabela Group	Isabela Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Isabela Group	Volcán Sierra Negra, Isabela Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Isabela Group	Volcán Wolf, Isabela Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Pinta Group	Pinta Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) San Cristóbal Group	San Cristóbal Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Santa Cruz Group	Santa Cruz Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Santa Fé Group	Santa Fé Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Santiago Group	Santiago Island	introduced invasive	Charles Darwin Foundation (2008)
Federated States of Micronesia Kosrae Island	Kosrae Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Federated States of Micronesia Kosrae Island	Kosrae Island	introduced invasive	Space, James C./Waterhouse, Barbara/Denslow, Julie S./Nelson, Duane/Waguk, Erick E. (2000) (p. Voucher specimen) Voucher: BMW 5779 (BISH, CANB)
Federated States of Micronesia Kosrae Island	Kosrae Island	introduced invasive	Lorence, David H./Flynn, Timothy (2010) (p. 12) Naturalized
Federated States of Micronesia Pohnpei Islands	Pohnpei Island	introduced invasive	Herrera, Katherine/Lorence, David H./Flynn, Timothy/Balick, Michael J. (2010) (p. 66) Voucher cited: M. Takamatsu 1018 (BISH) Naturalized
Federated States of Micronesia Yap Islands	Fais Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Federated States of Micronesia Yap Islands	Fais Island	native	Fosberg, F. R./Evans, M. (1969) (p. 6) Voucher cited: Evans 343 (US)
Federated States of Micronesia Yap Islands	Satawal Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Federated States of Micronesia Yap Islands	Satawal Island	introduced invasive	Fosberg, F. R. (1969) (p. 7) Voucher cited: Fosberg 46888a (US)
Federated States of Micronesia Yap Islands	Ulithi Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Federated States of Micronesia Yap Islands	Yap (Waqab) Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Fiji Fiji Islands	Moala Island	introduced invasive	Smith, Albert C. (1981) (p. 286) As A. gracilis. Voucher cited: Milne 111
Fiji Fiji Islands	Taveuni Island	introduced invasive	Smith, Albert C. (1981) (p. 286) As A. gracilis. Vouchers cited: DA 8878, DA 5743
Fiji Fiji Islands	Vanua Levu Island	introduced invasive	Smith, Albert C. (1981) (p. 286) As A. gracilis. Voucher cited: DA 8952
Fiji Fiji Islands	Viti Levu Island	introduced invasive	Smith, Albert C. (1981) (p. 286) As A. gracilis.
French Polynesia Gambier Islands	Mangareva (Gambier) Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
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. 13) Vouchers cited: Agassiz 96 (GH), Fosberg 11091 (BISH)
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Marquesas Islands	Fatu Hiva Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2003) (voucher ID: PTBG 39578) Taxon name on voucher: Amaranthus viridis
French Polynesia Marquesas Islands	Fatu Huku Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Marquesas Islands	Hiva Oa Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Marquesas Islands	Hiva Oa Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Hiva Oa Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: R.L. Oliver & P.A. Schäfer 3100b (PAP) Adventice
French Polynesia Marquesas Islands	Hiva Oa Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2002) (voucher ID: PTBG 41673) Taxon name on voucher: Amaranthus viridis
French Polynesia Marquesas Islands	Hiva Oa Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2003) (voucher ID: PTBG 39579) Taxon name on voucher: Amaranthus viridis
French Polynesia Marquesas Islands	Mohotani (Mohotane, Mohotane) Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Marquesas Islands	Mohotani (Mohotane, Mohotane) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Mohotani (Mohotane, Mohotane) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Marquesas Islands	Nuku Hiva (Nukahiva) Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
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) Adventice
French Polynesia Marquesas Islands	Tahuata (Tuhuata) Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Marquesas Islands	Tahuata (Tuhuata) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Tahuata (Tuhuata) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Vouchers cited: K.R. Wood, S.P. Perlman, J.-Y. Meyer & L. Teatiu 6407 (PAP), S.P. Perlman, K.R. Wood & J.-Y. Meyer 15862 (PAP) Adventice
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1997) (voucher ID: PTBG 26262) Taxon name on voucher: Amaranthus viridis L.
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1997) (voucher ID: PTBG 28578) Taxon name on voucher: Amaranthus viridis L.
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2003) (voucher ID: PTBG 40872) Taxon name on voucher: Amaranthus viridis
French Polynesia Marquesas Islands	Ua Pou (Huapu, Uapou, Uapu) Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Marquesas Islands	Ua Pou (Huapu, Uapou, Uapu) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Ua Pou (Huapu, Uapou, Uapu) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Society Islands	Huahine Island	introduced invasive	Welsh, S. L. (1998) (p. 27) Voucher cited: Bare 117
French Polynesia Society Islands	Huahine Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Society Islands	Huahine Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Society Islands	Moorea Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Society Islands	Moorea Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Society Islands	Mopelia (Mapetia, Maupiha‘a, Maupihoa, Mopiha‘a) Atoll	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Society Islands	Mopelia (Mapetia, Maupiha‘a, Maupihoa, Mopiha‘a) Atoll	introduced invasive	Sachet, M.-H. (1983) (p. 26) Voucher cited: Sachet 966 (US)
French Polynesia Society Islands	Mopelia (Mapetia, Maupiha‘a, Maupihoa, Mopiha‘a) Atoll	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. 27) Voucher cited: BRY 26491
French Polynesia Society Islands	Raiatea (Havai) Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Society Islands	Raiatea (Havai) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Society Islands	Tahiti Island	introduced invasive	Welsh, S. L. (1998) (p. 27) Vouchers cited: BRY 25456, BRY 25998
French Polynesia Society Islands	Tahiti Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Society Islands	Tahiti Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Tuamotu Archipelago	Raro‘ia Atoll	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Tuamotu Archipelago	Raro‘ia Atoll	introduced	Doty, Maxwell S. (1954) (p. 36)
French Polynesia Tuamotu Archipelago	Raro‘ia Atoll	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Tuamotu Archipelago	Takapoto Atoll	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Tuamotu Archipelago	Takapoto Atoll	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Adventice
French Polynesia Tuamotu Archipelago	Toau (Tovau) Atoll	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J. Florence 10242 (PAP) Adventice
French Polynesia Austral (Tubuai) Islands	Rapa Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
French Polynesia Austral (Tubuai) Islands	Rapa Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: N. Hallé 7687 (PAP) Adventice
French Polynesia Austral (Tubuai) Islands	Rimatara (Rimitara) Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
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. (2004) (pp. 63-65)
French Polynesia Austral (Tubuai) Islands	Rurutu Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J. Florence 9175 (PAP) Adventice
French Polynesia Austral (Tubuai) Islands	Tubuai Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
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) (p. 269)
Guam Guam Island	Guam Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Guam Guam Island	Guam Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1966) (voucher ID: PTBG 26473) Taxon name on voucher: Amaranthus viridis
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 189)
State of Hawaii Hawaiian Islands	Kaho‘olawe Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 189)
State of Hawaii Hawaiian Islands	Kaua‘i Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 189)
State of Hawaii Hawaiian Islands	Kure Atoll	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 189)
State of Hawaii Hawaiian Islands	Kure Atoll	introduced invasive	Starr, Forest/Martz, Kim/Loope, Lloyd (2001) (p. 8) Uncommon near quarters.
State of Hawaii Hawaiian Islands	Lāna‘i Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 189)
State of Hawaii Hawaiian Islands	Laysan Island	introduced invasive	Shannon, Robynn K./Wagner, Warren L. (1996) (p. 13) Voucher cited: Snyder s.n. (US)
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 189)
State of Hawaii Hawaiian Islands	Moloka‘i Island	introduced invasive	Hughes, Guy D'Oyly (1995) (pp. 1-2) Voucher cited: Hughes s.n. (BISH)
State of Hawaii Hawaiian Islands	Ni‘ihau Island	introduced invasive	Wagner, Warren L./Herbst, Derral R. (1995) (p. 14)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 189)
Japan (offshore islands) Ogasawara (Bonin) Islands	Bonin (Ogasawara) Islands	introduced	Kato, Hidetoshi (2007)
Kiribati Line Islands	Malden Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1995) (voucher ID: PTBG 37227) Taxon name on voucher: Amaranthus viridis L.
Kiribati Line Islands	Teraina (Washington) Island	introduced invasive	Wester, Lyndon (1985) (p. 21) Uncommon.
Kiribati Line Islands	Teraina (Washington) Island	introduced invasive	Christophersen, Erling (1927) (pp. 55, 78) Lawns and waste places at the settlement. voucher cited: Bergman 101
Kiribati Phoenix Islands	Kanton Island	introduced invasive	Fosberg, F. R./Stoddart, D. R. (1994) (p. 8) Rare. Voucher cited: Fosberg 55726 (US)
Kiribati Tungaru (Gilbert) Islands	Tarawa Atoll		Swarbrick, John T. (1997) (p. 88) Presence not verified
Marshall Islands Ralik Chain	Enewetak (Ãnewetak, Eniwetok) Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Marshall Islands Ralik Chain	Enewetak (Ãnewetak, Eniwetok) Atoll	introduced invasive	St. John, Harold (1960) (p. 326)
Marshall Islands Ralik Chain	Enewetak (Ãnewetak, Eniwetok) Atoll	introduced invasive	Fosberg, F. R. (1955) (p. 9) Voucher cited: Fosberg 24372 (US)
Marshall Islands Ralik Chain	Jaluit (Jãlwõj) Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Marshall Islands Ralik Chain	Jaluit (Jãlwõj) Atoll	introduced invasive	Fosberg, F. R./Sachet, M.-H. (1962) (p. 16) Voucher cited: Fosberg 39473 (US)
Marshall Islands Ralik Chain	Kwajalein (Kuwajleen) Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Marshall Islands Ratak Chain	Arno Atoll	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
Marshall Islands Ratak Chain	Majuro (Mãjro) Atoll	introduced	Fosberg, F. Raymond (1990) (p. 35)
Nauru Nauru Island	Nauru Island	introduced invasive	Thaman, R. R./Fosberg, F. R./Manner, H. I./Hassall, D. C. (1994) (pp. 85-86) Vouchers cited: Scully 143N (US?), Thaman & Manner 26 (SUVA)
New Caledonia Récifs D'Entrecasteaux (D'Entrecasteaux Reefs)	Île Surprise	introduced invasive	MacKee, H. S. (1994) (p. 12) Voucher cited: Boulet in MacKee 31447
New Caledonia Îles Loyauté (Loyalte Islands)	Île Lifou	introduced invasive	MacKee, H. S. (1994) (p. 12) Voucher cited: MacKee 28330
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced invasive	Tassin, Jacques (2005)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced invasive	MacKee, H. S. (1994) (p. 12) Vouchers cited: Labillardière s.n., Pancher 437, Balansa 522, Buchholz 1781, MacKee 20043, MacKee 25248, MacKee 39764
Niue Niue	Niue Island	introduced invasive	Sykes, W. R. (1970) (p. 41) Vouchers cited: CHR 169884, CHR 169887
Niue Niue	Niue Island	introduced invasive	Whistler, W. A. (1988) (p. 7)
Niue Niue	Niue Island	introduced invasive	Yuncker, T. G. (1943) (p. 51) Voucher cited: Yuncker 9866 (BISH) "A weedy plant occasional in plantations, dooryards, and waste areas".
Niue Niue	Niue Island	introduced invasive	Space, James C./Waterhouse, Barbara M./Newfield, Melanie/Bull, Cate (2004) (p. 38)
Palau Palau (Belau ) (main island group)	Angaur (Ngeaur) Island		Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Palau Palau (Belau ) (main island group)	Babeldaob Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 100)
Palau Palau (Belau ) (main island group)	Koror (Oreor) Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 69)
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. 96)
Palau Palau (Belau ) (main island group)	Koror (Oreor) Island		Beleu National Museum (Republic of Palau. Koror.) (1974) (voucher ID: BNM 10046) Taxon name on voucher: Amaranthus viridis L.
Palau Palau (Belau ) (main island group)	Koror (Oreor) Island		Beleu National Museum (Republic of Palau. Koror.) (1969) (voucher ID: BNM 62) Taxon name on voucher: Amaranthus viridis L.
Palau Palau (Belau ) (main island group)	Ngercheu Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 108) Carp Resort
Palau Palau (Belau ) (main island group)	Ngercheu Island	introduced invasive	Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 62) Carp Resort
Palau Palau (Belau ) (main island group)	Ngerkebesang Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 96)
Palau Palau (Belau ) (main island group)	Peleliu (Beliliou) Island		Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Palau Sonsorol Group	Sonsorol Island	introduced invasive	Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 109)
Papua New Guinea Bismarck Archipelago	Bismarck Archipelago	invasive	Peekel, P. G. [translated by E. E. Henty] (1984) (p. 168) Common weed in plantations, on rubbish heaps and rough lawns.
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. 54)
Papua New Guinea Papua New Guinea (eastern New Guinea Island)	Papua New Guinea (eastern New Guinea Island)		Waterhouse, D. F. (1997) (p. 59)
Papua New Guinea Papua New Guinea (eastern New Guinea Island)	Papua New Guinea (eastern New Guinea Island)	invasive	Womersley, John S., ed. (1978) (pp. 29-30)
Philippines Philippine Islands	Philippine Islands	probably native	Waterhouse, D. F. (1993) (pp. 63, 76)
Philippines Philippine Islands	Philippine Islands	probably introduced invasive	Merrill, Elmer D. (1923) (pp. 128-129) At low and medium altitudes; a common weed, probably introduced.
Pitcairn Islands Pitcairn Islands	Pitcairn Island	introduced invasive	Florence, J. (2004) (pp. 63-65)
Pitcairn Islands Pitcairn Islands	Pitcairn Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: J. Florence 10750 (PAP), J. Florence 10810 (PAP) Adventice
Samoa Western Samoa Islands	Western Samoa Islands		Whistler, W. A. (1988) (p. 7)
Solomon Islands Solomon Islands	Solomon Islands		Swarbrick, John T. (1997) (p. 88)
Solomon Islands Solomon Islands	Solomon Islands	introduced invasive cultivated	Hancock, I. R./Henderson, C. P. (1988) (p. 46)
Tonga Ha‘apai Group	Ha‘apai Islands		Whistler, W. A. (1992) (p. 2) Voucher cited: Soakai 294
Tonga Tonga Islands	Tonga Islands		Whistler, W. A. (1988) (p. 7)
Tonga Tonga Islands	Tonga Islands		Yuncker, T. G. (1959) (p. 107) "Throughout Tonga".
Tonga Tongatapu Group	‘Eua Island		Whistler, W. A. (1992) (p. 2) Voucher cited: Soakai 397
Tonga Tongatapu Group	‘Eua Island		Yuncker, T. G. (1959) (p. 107) Voucher cited: Yuncker 15470
Tonga Tongatapu Group	Tongatapu Island		Whistler, W. A. (1992) (p. 2) Vouchers cited: Soakai 440, Soakai 461, Soakai 609
Tonga Tongatapu Group	Tongatapu Island		Yuncker, T. G. (1959) (p. 107) Vouchers cited: Yuncker 15164, Hürlimann 100
Tonga Vava‘u Group	Late Island	introduced	Sykes, W. R. (1981) (p. 348)
Tonga Vava‘u Group	Tafahi Island		Yuncker, T. G. (1959) (p. 107) Voucher cited: Hürlimann 541
Tonga Vava‘u Group	Vava‘u Island		Whistler, W. A. (1992) (p. 2) Voucher cited: Soakai 880
Tuvalu Tuvalu (Ellis) Islands	Tuvalu Islands		Swarbrick, John T. (1997) (p. 88)
United States (other Pacific offshore islands) Johnston Atoll	Johnston Island	introduced invasive	Amerson, A. Binion, Jr./Shelton, Philip C. (1976) (p. 55)
United States (other Pacific offshore islands) Midway Atoll	Midway Atoll	introduced invasive	Wagner, Warren L./Herbst, Derral R. (1995) (p. 14) Vouchers cited: Herbst & Takeuchi 9074 (BISH), Herbst & Takeuchi 9080 (BISH)
United States (other Pacific offshore islands) Midway Atoll	Sand Island	introduced invasive	Starr, Forest/Starr, Kim/Loope, Lloyd (2008) (pp. B-3)
United States (other Pacific offshore islands) Wake Islands	Wake Island	introduced invasive	Fosberg, F. R. (1959) (p. 13) Voucher cited: Fosberg 34446
United States (other Pacific offshore islands) Wake Islands	Wake Island	introduced invasive	Fosberg, F. R./Sachet, M.-H. (1969) (p. 9) Voucher cited: Fosberg 43517 (US)
United States (other Pacific offshore islands) Wake Islands	Wake Island	introduced invasive	Fosberg, F. R. (1955) (p. 9) Voucher cited: Fosberg 34446 (US)
Vanuatu New Hebrides Islands	Vanuatu (Republic of)		Swarbrick, John T. (1997) (p. 88)
Wallis and Futuna Wallis and Futuna (Horne) Islands	Wallis and Futuna Islands		Waterhouse, D. F. (1997) (p. 59)

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		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 55)
Australia Australia (continental)	Northern Territory		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 55)
Australia Australia (continental)	Queensland		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 55)
Cambodia Cambodia	Cambodia (Kingdom of)	probably native	Waterhouse, D. F. (1993) (pp. 63, 76)
Central America Central America (Pacific rim)	Honduras (Republic of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (pp. 20-21)
China China	China (People's Republic of)		Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013) "Fields, waste places".
China China	China (People's Republic of)		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 55)
China China	Hong Kong	native	Wu, Te-lin (2001) (p. 78)
Indonesia Indonesia	Indonesia (Republic of)	probably native	Waterhouse, D. F. (1993) (pp. 63, 76)
Japan Japan	Japan		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 55)
Japan Japan	Japan	introduced	Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 182)
South Korea South Korea	South Korea (Republic of)		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 55)
Malaysia Malaysia	Malaysia (country of)	probably native	Waterhouse, D. F. (1993) (pp. 63, 76)
Mexico Mexico	Mexico (United Mexican States)		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 55)
New Zealand New Zealand	New Zealand (country)	introduced invasive	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 108)
Singapore Singapore	Singapore (Republic of)	probably native	Waterhouse, D. F. (1993) (pp. 63, 76)
South America (Pacific rim) South America (Pacific rim)	Chile (Republic of)		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 55)
South America (Pacific rim) South America (Pacific rim)	Perú (Republic of)		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 55)
Taiwan Taiwan Island	Taiwan Island		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 55)
Thailand Thailand	Thailand (Kingdom of)	probably native	Waterhouse, D. F. (1993) (pp. 63, 76)
Vietnam Vietnam	Vietnam (Socialist Republic of)	probably native	Waterhouse, D. F. (1993) (pp. 63, 76)

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	native	Orchard, Anthony E., ed. (1993) (p. 16)
British Indian Ocean Territory Chagos Archipelago	Diego Garcia Island		Stoddart, D. R./Taylor, J. D., eds. (1971) (p. 150) "Seen by Wiehe in 1939".
British Indian Ocean Territory Chagos Archipelago	Diego Garcia Island	introduced invasive	Whistler, W. Arthur (1996) (p. 25)
Maldives Maldive Islands	Malè Atoll		Fosberg, F. R. (1957) (p. 18)
Mauritius Mautitius Islands (Mauritius and Rodrigues)	Mauritius Island		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (pp. 20-21)
Seychelles Seychelles Islands	Seychelles Islands	introduced	Invasive Species Specialist Group (2017)

Control:  If you know of control methods for Amaranthus viridis, please let us know.