1. Family: Brassicaceae Burnett
    1. Rorippa Scop.

      1. This genus is accepted, and its native range is Cosmopolitan.

    [FZ]

    Cruciferae, A. W. Exell. Flora Zambesiaca 1:1. 1960

    Corolla
    Petals usually 4, occasionally reduced in number or absent.
    Stamens
    Stamens usually 6, tetradynamous, occasionally fewer.
    Fruits
    Fruit cylindric to ellipsoid.
    Seeds
    Seeds 1–2-seriate (2-seriate in our area) lenticular to subspherical; cotyledons accumbent.
    Habit
    Annual, biennial or perennial herbs sometimes almost acaulescent, often aquatic or semi-aquatic, glabrous or with simple hairs.
    Leaves
    Leaves alternate, entire or variously pinnatifid or pinnatisect or pinnate.
    Flowers
    Flowers yellow, white or pinkish in terminal or axillary racemes or panicles or sometimes solitary and axillary.
    [FTEA]

    Cruciferae, Bengt Jonsell (University of Stockholm). Flora of Tropical East Africa. 1982

    Habit
    Annual to perennial small to rather tall herbs with a taproot, sometimes also with root-runners or adventive roots from stem-nodes, practically glabrous to pubescent with unicellular simple pointed hairs
    Stem
    Stems prostrate to erect, usually much branched
    Leaves
    Leaves membranous, usually pinnatifid to pinnate, often auriculate
    Inflorescences
    Racemes terminal, less often axillary, with or without bracts, nearly corymbose, with numerous rather small to small flowers, in fruit cylindrical and lax
    Calyx
    Sepals greenish, elliptic, not saccate, spreading
    Corolla
    Petals yellow or white, equalling or up to ± twice as long as the sepals
    Stamens
    Stamens 6, distinctly tetradynamous, with linear filaments; anthers ovate to oblong, yellow, blunt
    Nectaries
    Nectarial tissue ± surrounding the lateral filament-bases, usually also extending outside the median ones but sometimes lacking there (as in species 5 and 6)
    Ovary
    Ovary spheroid to narrowly cylindrical, with numerous ovules
    Fruits
    Fruits terete, very variable in shape (globose to narrowly linear), without or rarely with a very short gynophore, usually with a short but distinct style and flat to slightly bifid stigma, dehiscent by 2 valves, with very fine or no observable midnerve
    Seeds
    Seeds many to numerous, not mucilaginous, finely and variously sculptured, yellowish to dark brown, ellipsoid to spheroid, wingless, 0.5–1.5 mm. across.

    Images

    Distribution

    Native to:

    Alabama, Alaska, Albania, Alberta, Algeria, Altay, Amur, Angola, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Assam, Austria, Bahamas, Baltic States, Bangladesh, Belarus, Belgium, Bismarck Archipelago, Bolivia, Botswana, Brazil South, British Columbia, Bulgaria, Burundi, Buryatiya, California, Cameroon, Cape Provinces, Central African Repu, Central European Rus, Chatham Is., Chile Central, Chile South, China South-Central, China Southeast, Chita, Colombia, Colorado, Congo, Connecticut, Corse, Costa Rica, Cuba, Czechoslovakia, Delaware, Denmark, District of Columbia, Dominican Republic, East Aegean Is., East European Russia, East Himalaya, Ecuador, Egypt, Ethiopia, Finland, Florida, France, Free State, Gabon, Galápagos, Georgia, Germany, Ghana, Great Britain, Greece, Guatemala, Guinea-Bissau, Gulf of Guinea Is., Gulf States, Honduras, Hungary, Iceland, Idaho, Illinois, India, Indiana, Iowa, Iran, Ireland, Irkutsk, Italy, Ivory Coast, Japan, Jawa, Kamchatka, Kansas, Kazakhstan, Kentucky, Kenya, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Krym, Kuril Is., KwaZulu-Natal, Labrador, Laos, Leeward Is., Lesotho, Lesser Sunda Is., Liberia, Libya, Louisiana, Madagascar, Magadan, Maine, Malawi, Malaya, Mali, Manitoba, Maryland, Masachusettes, Mauritania, Mauritius, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Mongolia, Montana, Morocco, Mozambique, Myanmar, Namibia, Nebraska, Nepal, Netherlands, Nevada, New Brunswick, New Caledonia, New Guinea, New Hampshire, New Jersey, New Mexico, New South Wales, New York, New Zealand North, New Zealand South, Newfoundland, Nicaragua, Nigeria, North Carolina, North Dakota, North European Russi, Northern Provinces, Northern Territory, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Nunavut, Ohio, Oklahoma, Ontario, Oregon, Pakistan, Paraguay, Pennsylvania, Peru, Philippines, Poland, Portugal, Primorye, Prince Edward I., Puerto Rico, Qinghai, Queensland, Québec, Rhode I., Romania, Rwanda, Sakhalin, Sardegna, Saskatchewan, Senegal, Sicilia, Solomon Is., South Australia, South Carolina, South Dakota, South European Russi, Spain, Sri Lanka, Sudan, Sweden, Switzerland, Tadzhikistan, Taiwan, Tanzania, Tasmania, Tennessee, Texas, Thailand, Tibet, Transcaucasus, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Uganda, Ukraine, Uruguay, Utah, Uzbekistan, Vanuatu, Vermont, Victoria, Vietnam, Virginia, Washington, West Siberia, West Virginia, Western Australia, Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yemen, Yugoslavia, Yukon, Zambia, Zaïre, Zimbabwe

    Extinct in:

    Kermadec Is., Palestine

    Introduced into:

    Aleutian Is., Andaman Is., Brazil North, Brazil Southeast, Cook Is., Easter Is., El Salvador, Fiji, Guyana, Haiti, Hawaii, Jamaica, Kerguelen, Nicobar Is., Niue, Panamá, Samoa, Suriname, Tonga, Trinidad-Tobago, Tuamotu, Tuvalu, Venezuela, Wallis-Futuna Is., Windward Is.

    Recorded in error in:

    Kriti

    Rorippa Scop. appears in other Kew resources:

    First published in Fl. Carniol.: 520 (1760)

    Literature

    Flora of West Tropical Africa
    • —Hylander in Bot. Notiser. 1950, 1: 1–13 (1950)
    Flora Zambesiaca
    • Fl. Carniol.: 520 (1760).
    Flora of Tropical East Africa
    • Fl. Carniol.: 520 (1760)

    Sources

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

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    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