Amaranthus retroflexus L.

Native to:

Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest

Introduced into:

Afghanistan, Alabama, Albania, Alberta, Algeria, Altay, Amur, Argentina Northeast, Argentina South, Arizona, Arkansas, Austria, Azores, Baleares, Baltic States, Belarus, Belgium, Bolivia, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, British Columbia, Bulgaria, Burkina, California, Cambodia, Canary Is., Central European Rus, Chad, Chile Central, Chile North, China North-Central, China Southeast, Colorado, Connecticut, Corse, Cyprus, Czechoslovakia, Delaware, Denmark, District of Columbia, East Aegean Is., East European Russia, Egypt, Finland, Florida, France, Georgia, Germany, Great Britain, Greece, Gulf States, Hungary, Idaho, Illinois, Indiana, Inner Mongolia, Iran, Iraq, Ireland, Irkutsk, Italy, Japan, Kansas, Kazakhstan, Kentucky, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Krym, KwaZulu-Natal, Lebanon-Syria, Libya, Louisiana, Madeira, Maine, Manchuria, Manitoba, Maryland, Massachusetts, Mauritania, Mexico Northwest, Michigan, Minnesota, Mississippi, Missouri, Mongolia, Montana, Morocco, Nansei-shoto, Nebraska, Netherlands, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New South Wales, New York, New Zealand North, New Zealand South, Newfoundland, North Carolina, North Caucasus, North Dakota, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Nunavut, Ohio, Oklahoma, Ontario, Oregon, Pakistan, Palestine, Paraguay, Pennsylvania, Poland, Portugal, Primorye, Prince Edward I., Québec, Rhode I., Romania, Sardegna, Saskatchewan, Sicilia, Sinai, South Australia, South Carolina, South Dakota, South European Russi, Spain, Sweden, Switzerland, Tadzhikistan, Tennessee, Texas, Transcaucasus, Trinidad-Tobago, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Ukraine, Uruguay, Utah, Uzbekistan, Venezuela, Vermont, Victoria, Vietnam, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Western Australia, Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yugoslavia, Zambia, Zimbabwe

POWO follows these authorities in accepting this name:

• Abdulina, S.A. (1999). Spisok Sosudistykn Rastenii Kazakhstana: 1-187. Academy of Sciences, Almaty, Kazakhstan.
• Ackerfield, J. (2015). Flora of Colorado: 1-818. BRIT Press.
• Aellen, P. (1972). Flora Iranica 91: 1-19. Akademische Druck- u. Verlagsanstalt, Graz.
• Aistova, E. (2009). Check-list of adventive flora of Amur region. Turczaninowia 12(1-2): 17-40.
• Allred, K.W. (2012). Flora Neomexicana, ed. 2, 1: 1-599. Range Science Herbarium, Las Cruces, New Mexico.
• Aver'ianov, L.V. & al. (2006). Illyustrirovannyi opredelitel' rastenii Leningradskoi oblasti: 1-799. Nauka, Moskva.
• B.A.Fedtschenko & al. (1948). Flora Turkmenii 3: 1-280. Turkmenskoe gosudarstvennoe izd., Ashkhabad.
• Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
• Baksh-Comeau, Y., Maharaj, S.S., Adams, C.D., Harris, S.A., Filer, D.L. & Hawthorne, W.D. (2016). An annotated checklist of the vascular plants of Trinidad and Tobago with analysis of vegetation types and botanical 'hotspots'. Phytotaxa 250: 1-431.
• Baliousis, E. (2014). Recent data from the flora of the island of Limnos (NE Aegean, Greece): new alien invasive species affecting the agricultural economy of the island. Edinburgh Journal of Botany 71: 275-285.
• Bayón, N.D. (2015). Revisión taxonómica de las especies monoicas de Amaranthus (Amaranthaceae): Amaranthus subg. Amaranthus y Amaranthus subg. Albersia. Annals from the Missouri Botanical Garden 101: 261-383. MBG press.
• Boulos, L. (1999). Flora of Egypt 1: 1-419. Al Hadara Publishing, Cairo.
• Carmona Pinto, W. & Orsini Velásquez, G. (2010). Sinopsis del subgénero Amaranthus (Amaranthus, Amaranthaceae) en Venezuela. Acta botanica Venezuelica 33: 329-356.
• Chang, C.S., Kim, H. & Chang, K.S. (2014). Provisional checklist of vascular plants for the Korea peninsula flora (KPF): 1-660. DESIGNPOST.
• Cossu, T.A, Camarda, I. & Brundu, G. (2014). A catalogue of non-native weeds in irrigated crops in Sardinia (Italy). Webbia; Raccolta de Scritti Botanici 69: 145-156.
• Davis, P.H. (ed.) (1967). Flora of Turkey and the East Aegean Islands 2: 1-581. Edinburgh University Press, Edinburgh.
• Delipavlov, D. & Cheshmedzhiev, I. (eds.) (2011). Opredelitel na rasteniiata v Bulgariia: 1-590. Akad. Isd. Agrar. Univers. Plovdiv.
• Dobignard, A. & Chatelain, C. (2011). Index synonymique de la flore d'Afrique du nord 2: 1-429. Éditions des conservatoire et jardin botaniques, Genève.
• Dufour-Dror, J.M. & Fragman-Sapir, O. in Dufour-Dror, J.M. (2019). Alien Plant Species in Natural & Disturbed Areas in Israel. Alien Invasive Plants in Israel, ed. 2: 1-246. Dan Perry Pub., Nature & Parks Authority, Israel Ministry of Environmental Protection.
• Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 4: 1-559. Oxford University Press, New York, Oxford.
• Garcillán, P.P. & al. (2013). Plantas no nativas naturalizadas de la península de Baja California, México. Botanical Sciences 91: 461-475.
• Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist. Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
• Ghazanfar, S.A. & Edmandson, J.R. (eds.) (2016). Flora of Iraq 5(1): 1-284. Ministry of Agriculture & Agrarian Reform, Baghdad.
• Gilman, A.V. (2015). New flora of Vermont. Memoirs of the New York Botanical Garden 110: 1-614.
• Gorchakovskii, P.L. & al. (1994). Opredelitel' sosudistykkhrastenii srednego Urala: 1-524. Nauka, Moscow.
• Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 529. MIM, Deurne.
• Iamonico, D. (2015). Taxonomic revision of the genus Amaranthus (Amaranthaceae) in Italy. Phytotaxa 199: 1-84.
• Iwatsuki, K., Boufford, D.E. & Ohba, H. (eds.) (2006). Flora of Japan IIa: 1-550. Kodansha Ltd., Tokyo.
• Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.
• Jonsell, B. (ed.) (2001). Flora Nordica 2: 1-430. The Bergius Foundaton.
• Kharkevich, S.S. (ed.) (1988). Plantae Vasculares Orientalis Extremi Sovietici 3: 1-419. Nauka, Leningrad.
• Knapp, W.M. & Naczi, R.F.C. (2021). Vascular plants of Maryland, USA. A comprehensive account of the state's botanical diversity. Smithsonian Contributions to Botany 113: 1-151.
• Komiljon, T., Natalya, B., Avazbek, B., Dilnoza, A., Ziyoviddin, Y., Deng, T. & Sun, H. (2020). Flora of the Dzhizak Province, Uzbekistan: 1-523. China Forestry Publishing House.
• Korovin, E.P. & Vvedensky, A.I. (eds.) (1953). Flora Uzbekistana 2: 1-547. Izd-va Akademii nauk Uzbekskoi SSR, Tashkent.
• Kozhevnikov, A.E., Kozhevnikov, Z.V., Kwak, M. & Lee, B.Y. (2019). Illustrated flora of the Primorsky Territory, Russian Far East: 1-1124. National institute of biological resources.
• Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
• Krasnoborov, I.M. & Malyshev, L.I. (2003). Flora of Siberia 5: 1-305. Scientific Publishers, Inc., Enfield, Plymouth.
• Larson, J., Reif, B., Nelson, B.E. & Hartman, R.L. (2014). Floristic studies in North Central New Mexico, U.S.A. the Sange de Cristo mountains. Journal of the Botanical Research Institute of Texas 8: 271-303.
• Launert, E. (ed.) (1988). Flora Zambesiaca 9(1): 1-179. Royal Botanic Gardens, Kew.
• Lazkov, G.A. & Sultanova, B.A. (2011). Checklist of vascular plants of Kyrgyzstan. Norrlinia 24: 1-166.
• Lebrun, J.P., Toutain, B., Gaston, A. & Boudet, G. (1991). Catalogue des Plantes Vasculaires du Burkina Faso: 1-341. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
• Lê, T.C. (2003). Danh lục các loài thực vật Việt Nam 2: 1-1203. Hà Nội : Nhà xuất bản Nông nghiệp.
• Malyschev, L.I., Peshkova, G.A. & Baikov, K.S. (eds.) (2007). Flora of Siberia 14: 1-210. Scientific Publishers, Inc., Enfield, Plymouth.
• Mirek, Z., Piękoś-Mirkowa, H., Zając, A. & Zając, M (2020). Vascular plants of Poland an annotated checklist: 1-526. W. Szafer institute of botany, Polish academy of sciences, Krakow, Poland.
• Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.
• Muer, T., Sauerbier, H. & Cabrara Calixto, F. (2020). Die Farn- und Blütenpflanzen Madeiras: 1-792. Verlag und Versandbuchhandlung Andreas Kleinsteuber.
• Musselman, L.J. (2011). Checklist of Plants of Lebanon and Syria http://ww2.odu.edu/~lmusselm/plant/lebsyria/Checklist%20of%20Lebanon%20Plants.pdf.
• Nasir, E. & Ali, S.I. (eds.) (1970-1995). Flora of West Pakistan 1-131.
• Nikolin, E.G. (2020). Opredelitel' vysshikh rasteniy Yakutii: 1-895. Moskva : Tovarishchestvo Nauchnykh Izdaniy KMK Novosibirsk "Nauka".
• Ovczinnikov, P.N. (ed.) (1968). Flora Tadzhikskoi SSR 3: 1-710. Izd-vo Akademii nauk SSSR, Moskva.
• Park, C.W. (ed.) (2018). Flora of Korea 3: 1-131. National Institute of Biological Resources.
• Parslow, R. & Bennallick, I. (2017). The new flora of the Isles of Scilly: 1-539. Parslow Press.
• Seregin, A.P. (2014). Flora of Vladimir Oblast, Russia: grid data analysis: 1-441. KMK schientific press, Moscow.
• Tutin, T.G. & al. (eds.) (1993). Flora Europaea ed. 2, 1: 1-581. Cambridge University Press.
• Zervous, S., Raus, T. & Yannitsaros, A. (2009). Additons to the flora of the island of Kalimnos (SE Aegean, Greece). Willdenowia 39: 165-177.
• Zhao, Y.Z., Zhao, L.Q. & Rui, C. (eds.) (2019). Flora Intramongolica, edition 3, 1: 1-779. Typis Intramongolicae popularis, Huhhot.
• Zuloaga, F.O. & Belgrano, M.J. (eds.) (2020). Flora Argentina. Flora vascular de la República Argentina 19(1): 1-378. INTA, IMBIV & IBODA.
• Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur. Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348. Missouri Botanical Garden.

Kew Backbone Distributions

• Abdulina, S.A. (1999). Spisok Sosudistykn Rastenii Kazakhstana: 1-187. Academy of Sciences, Almaty, Kazakhstan.
• Ackerfield, J. (2015). Flora of Colorado: 1-818. BRIT Press.
• Aellen, P. (1972). Flora Iranica 91: 1-19. Akademische Druck- u. Verlagsanstalt, Graz.
• Aistova, E. (2009). Check-list of adventive flora of Amur region. Turczaninowia 12(1-2): 17-40.
• Aver'ianov, L.V. & al. (2006). Illyustrirovannyi opredelitel' rastenii Leningradskoi oblasti: 1-799. Nauka, Moskva.
• B.A.Fedtschenko & al. (1948). Flora Turkmenii 3: 1-280. Turkmenskoe gosudarstvennoe izd., Ashkhabad.
• Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
• Baksh-Comeau, Y., Maharaj, S.S., Adams, C.D., Harris, S.A., Filer, D.L. & Hawthorne, W.D. (2016). An annotated checklist of the vascular plants of Trinidad and Tobago with analysis of vegetation types and botanical 'hotspots'. Phytotaxa 250: 1-431.
• Bayón, N.D. (2015). Revisión taxonómica de las especies monoicas de Amaranthus (Amaranthaceae): Amaranthus subg. Amaranthus y Amaranthus subg. Albersia. Annals from the Missouri Botanical Garden 101: 261-383. MBG press.
• Boulos, L. (1999). Flora of Egypt 1: 1-419. Al Hadara Publishing, Cairo.
• Carmona Pinto, W. & Orsini Velásquez, G. (2010). Sinopsis del subgénero Amaranthus (Amaranthus, Amaranthaceae) en Venezuela. Acta botanica Venezuelica 33: 329-356.
• Chou, S., Chhnang, P. & Kim, Y. (2016). A Checklist for the Seed Plants of Cambodia: 1-272. National Institute of Biological Resources, Korea.
• Cossu, T.A, Camarda, I. & Brundu, G. (2014). A catalogue of non-native weeds in irrigated crops in Sardinia (Italy). Webbia; Raccolta de Scritti Botanici 69: 145-156.
• Dobignard, A. & Chatelain, C. (2011). Index synonymique de la flore d'Afrique du nord 2: 1-429. Éditions des conservatoire et jardin botaniques, Genève.
• Dufour-Dror, J.M. & Fragman-Sapir, O. in Dufour-Dror, J.M. (2019). Alien Plant Species in Natural & Disturbed Areas in Israel. Alien Invasive Plants in Israel, ed. 2: 1-246. Dan Perry Pub., Nature & Parks Authority, Israel Ministry of Environmental Protection.
• Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 4: 1-559. Oxford University Press, New York, Oxford.
• Forzza, R.C., Zappi, D. & Souza, V.C. (2016-continuously updated). Flora do Brasil 2020 em construção http://reflora.jbrj.gov.br/reflora/listaBrasil/ConsultaPublicaUC/ResultadoDaConsultaNovaConsulta.do.
• Garcillán, P.P. & al. (2013). Plantas no nativas naturalizadas de la península de Baja California, México. Botanical Sciences 91: 461-475.
• Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist. Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
• Ghazanfar, S.A. & Edmandson, J.R. (eds.) (2016). Flora of Iraq 5(1): 1-284. Ministry of Agriculture & Agrarian Reform, Baghdad.
• Gilman, A.V. (2015). New flora of Vermont. Memoirs of the New York Botanical Garden 110: 1-614.
• Gorchakovskii, P.L. & al. (1994). Opredelitel' sosudistykkhrastenii srednego Urala: 1-524. Nauka, Moscow.
• Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.
• Jonsell, B. (ed.) (2001). Flora Nordica 2: 1-430. The Bergius Foundaton.
• Kharkevich, S.S. (ed.) (1988). Plantae Vasculares Orientalis Extremi Sovietici 3: 1-419. Nauka, Leningrad.
• Korovin, E.P. & Vvedensky, A.I. (eds.) (1953). Flora Uzbekistana 2: 1-547. Izd-va Akademii nauk Uzbekskoi SSR, Tashkent.
• Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
• Krasnoborov, I.M. & Malyshev, L.I. (2003). Flora of Siberia 5: 1-305. Scientific Publishers, Inc., Enfield, Plymouth.
• Larson, J., Reif, B., Nelson, B.E. & Hartman, R.L. (2014). Floristic studies in North Central New Mexico, U.S.A. the Sange de Cristo mountains. Journal of the Botanical Research Institute of Texas 8: 271-303.
• Launert, E. (ed.) (1988). Flora Zambesiaca 9(1): 1-179. Royal Botanic Gardens, Kew.
• Lazkov, G.A. & Sultanova, B.A. (2011). Checklist of vascular plants of Kyrgyzstan. Norrlinia 24: 1-166.
• Lebrun, J.P., Toutain, B., Gaston, A. & Boudet, G. (1991). Catalogue des Plantes Vasculaires du Burkina Faso: 1-341. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
• Lê, T.C. (2003). Danh lục các loài thực vật Việt Nam 2: 1-1203. Hà Nội : Nhà xuất bản Nông nghiệp.
• Malyschev, L.I., Peshkova, G.A. & Baikov, K.S. (eds.) (2007). Flora of Siberia 14: 1-210. Scientific Publishers, Inc., Enfield, Plymouth.
• Meades, S.J. & Brouillet, L. (2019). Annotated Checklist of the Vascular Plants of Newfoundland and Labrador https://newfoundland-labradorflora.ca/checklist/.
• Musselman, L.J. (2011). Checklist of Plants of Lebanon and Syria http://ww2.odu.edu/~lmusselm/plant/lebsyria/Checklist%20of%20Lebanon%20Plants.pdf.
• Nasir, E. & Ali, S.I. (eds.) (1970-1995). Flora of West Pakistan 1-131.
• Ovczinnikov, P.N. (ed.) (1968). Flora Tadzhikskoi SSR 3: 1-710. Izd-vo Akademii nauk SSSR, Moskva.
• Quézel, P. (1958). Mission Botanique au Tibesti: 1-357. Université d'Alger.
• Seregin, A.P. (2014). Flora of Vladimir Oblast, Russia: grid data analysis: 1-441. KMK schientific press, Moscow.
• Takhtajan, A.L. (ed.) in Takhtajan, A.L. (ed.) (2012). Konspekt Flora Kavkaza 3(2): 1-623. Editio Universitatis Petropolitanae.
• Villaseñor, J.L. (2016). Checklist of the native vascular plants of Mexico. Revista Mexicana de Biodiversidad 87: 559-902.
• Zervous, S., Raus, T. & Yannitsaros, A. (2009). Additons to the flora of the island of Kalimnos (SE Aegean, Greece). Willdenowia 39: 165-177.
• Zuloaga, F.O. & Belgrano, M.J. (eds.) (2020). Flora Argentina. Flora vascular de la República Argentina 19(1): 1-378. INTA, IMBIV & IBODA.