1. Family: Onagraceae Juss.
    1. Oenothera L.

      1. This genus is accepted, and its native range is New World.

    [FZ]

    Onagraceae, P. H. Raven. Flora Zambesiaca 4. 1978

    Habit
    Annual, biennial, or perennial herbs.
    Leaves
    Leaves alternate, entire to pinnatifid.
    Stipules
    Stipules absent.
    Bracteoles
    Bracteoles absent.
    Flowers
    Floral tube present. Flowers borne in the axils of often reduced leaves, often clustered in an inflorescence near the ends of the sterns.
    Calyx
    Sepals 4, caducous.
    Corolla
    Petals 4, caducous, yellow, white, or rose-purple, with contorted aestivation.
    Stamens
    Stamens 8; anthers attached near the middle.
    Pollen
    Pollen shed singly.
    Stigma
    Stigma deeply 4-lobed.
    Ovary
    Ovary 4-locular; ovules in 1-many rows in each locule, the seeds free.
    Fruits
    Capsule loculicidal.
    Seeds
    Seeds lacking hairs.

    Images

    Distribution

    Native to:

    Alabama, Alberta, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Arkansas, Bahamas, Bermuda, Bolivia, Brazil South, Brazil Southeast, British Columbia, California, Chile Central, Chile North, Chile South, Colombia, Colorado, Connecticut, Costa Rica, Cuba, Delaware, Desventurados Is., Dominican Republic, Ecuador, El Salvador, Florida, Georgia, Guatemala, Honduras, Idaho, Illinois, Indiana, Iowa, Jamaica, Juan Fernández Is., Kansas, Kentucky, Louisiana, Manitoba, Maryland, Masachusettes, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Missouri, Montana, Nebraska, Nevada, New Brunswick, New Jersey, New Mexico, New York, North Carolina, North Dakota, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Panamá, Paraguay, Pennsylvania, Peru, Québec, Saskatchewan, South Carolina, South Dakota, Tennessee, Texas, Uruguay, Utah, Venezuela, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming

    Introduced into:

    Albania, Algeria, Altay, Amur, Angola, Austria, Azores, Baleares, Baltic States, Bangladesh, Belarus, Belgium, Bulgaria, Buryatiya, Canary Is., Cape Provinces, Cape Verde, Central European Rus, China North-Central, China South-Central, China Southeast, Corse, Cyprus, Czechoslovakia, Denmark, East European Russia, East Himalaya, Easter Is., Egypt, Ethiopia, Finland, France, Free State, Germany, Great Britain, Greece, Hawaii, Hungary, India, Inner Mongolia, Ireland, Irkutsk, Italy, Japan, Jawa, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kriti, Krym, Kuril Is., KwaZulu-Natal, Lesotho, Libya, Madagascar, Madeira, Manchuria, Mauritius, Morocco, Mozambique, Myanmar, Namibia, Netherlands, Norfolk Is., Northern Provinces, Northwest European R, Norway, Pakistan, Poland, Portugal, Primorye, Queensland, Romania, Rwanda, Réunion, Sakhalin, Sicilia, Sinai, South European Russi, Spain, Sri Lanka, Swaziland, Sweden, Switzerland, Tadzhikistan, Taiwan, Tristan da Cunha, Tunisia, Turkey-in-Europe, Ukraine, Uzbekistan, Vietnam, West Himalaya, West Siberia, Yugoslavia, Zambia, Zimbabwe

    Oenothera L. appears in other Kew resources:

    First published in Sp. Pl.: 346 (1753)

    Accepted by

    • Christenhusz, M.J.M., Fay, M.F. & Chase, M.W. (2017). Plants of the World. An illustrated encyclopedia of vascular plants: 1-792. Kew Publishing, The university of Chicago Press.
    • Tutin, T.G. & al. (eds.) (1968). Flora Europaea 2: 1-469. Cambridge University Press.

    Literature

    Flora Zambesiaca
    • Gen. Pl. ed. 5: 163 (1754).
    • Sp. Pl. 1: 346 (1753)

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0