Rorippa Scop.

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


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

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


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

Morphology General 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
Morphology Stem
Stems prostrate to erect, usually much branched
Morphology Leaves
Leaves membranous, usually pinnatifid to pinnate, often auriculate
Morphology Reproductive morphology Inflorescences
Racemes terminal, less often axillary, with or without bracts, nearly corymbose, with numerous rather small to small flowers, in fruit cylindrical and lax
Morphology Reproductive morphology Flowers Calyx
Sepals greenish, elliptic, not saccate, spreading
Morphology Reproductive morphology Flowers Corolla
Petals yellow or white, equalling or up to ± twice as long as the sepals
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 6, distinctly tetradynamous, with linear filaments; anthers ovate to oblong, yellow, blunt
Morphology Reproductive morphology Flowers 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)
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary spheroid to narrowly cylindrical, with numerous ovules
Morphology Reproductive morphology 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
Morphology Reproductive morphology 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.

Native to:

Afghanistan, 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, Cambodia, Cameroon, Cape Provinces, Central African Repu, Central European Rus, Chatham Is., Chile Central, Chile South, China North-Central, 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, Hainan, Honduras, Hungary, Iceland, Idaho, Illinois, India, Indiana, Inner Mongolia, Iowa, Iran, Iraq, 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, Maluku, Manchuria, Manitoba, Maryland, Massachusetts, 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 Caucasus, North Dakota, North European Russi, Northern Provinces, Northern Territory, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Nunavut, Ohio, Oklahoma, Ontario, Oregon, Pakistan, Palestine, 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 Himalaya, West Siberia, West Virginia, Western Australia, Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yemen, Yugoslavia, Yukon, Zambia, Zaïre, Zimbabwe

Extinct in:

Kermadec Is.

Introduced into:

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

Recorded in error in:


Rorippa Scop. appears in other Kew resources:

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

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8: 215.


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)

  • Flora Zambesiaca

    Flora Zambesiaca

  • Flora of Tropical East Africa

    Flora of Tropical East Africa

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at and
    © Copyright 2017 World Checklist of Selected Plant Families.

  • Kew Names and Taxonomic Backbone

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at and
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.