1. Family: Oxalidaceae R.Br.
    1. Oxalis L.

      1. This genus is accepted, and is native to Europe, Asia-Tropical, Africa, Falkland Island, Pacific, Southern America, Australasia, Northern America and Asia-Temperate..


    Oxalidaceae, Christine H. S. Kabuye  (East African Herbarium). Flora of Tropical East Africa. 1971

    Caulescent or acaulescent perennial or annual herbs, bulbous or not
    Leaves radical or cauline, alternate, digitately or pinnately (1–)3-foliolate, rather sensitive to light and drooping at night, petiolate, sometimes with membranous stipules adnate to the petiole
    Flowers pedicellate, subtended by bracts, in pseudumbels or cymes or solitary, usually trimorphic heterostylous (largely homostylous in O. corniculata)
    Sepals sometimes with apical calli
    Petals contorted in bud, falsely connate near the base
    Stamens 10,2-seriate, with 5 outer short filaments opposite the petals and 5 inner long filaments opposite the sepals; filaments usually fused at the bottom to form a tube and sometimes the long filaments each with an appendage at the back; anthers opening by slits
    Ovary of 5 fused carpels, with 1–many ovules in each carpel; stigma terminal, capitate, 2-fid or laciniate
    Fruit a capsule, with the valves persisting around the central column
    Seeds brown, covered by a white fleshy integument, which bursts elastically by contraction expelling the seeds when ripe.

    Oxalidaceae, A. W. Exell. Flora Zambesiaca 2:1. 1963

    Caulescent or acaulescent annual or perennial herbs, usually bulbous, occasionally suffruticose.
    Leaves radical or cauline, alternate or often in a cluster, digitately 3-foliolate (in our area) or pinnately 3-foliolate or sometimes 1-foliolate.
    Flowers actinomorphic, usually heterostylous (homostylous in O. corniculata), solitary or subtended by bracts in pseudumbels or cymes.
    Petals contorted, unguiculate; claws ± coherent to form a false tube.
    Stamens 10, 2-seriate, the outer 5 shorter and opposite the petals, the inner 5 longer and opposite the sepals (vestiges of a third whorl sometimes present); filaments usually connate at the base and sometimes with dentate appendages; anthers introrse in bud, dehiscing by slits.
    Ovary with several ovules in each loculus; ovules anatropous.
    Capsule loculicidally dehiscent.
    Seeds with or without endosperm and with a testa which becomes fleshy and eventually everts explosively ejecting the contents.



    Native to:

    Afghanistan, Alabama, Albania, Algeria, Altay, Amur, Angola, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Austria, Bahamas, Baltic States, Belarus, Belgium, Belize, Bismarck Archipelago, Bolivia, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, British Columbia, Bulgaria, Burundi, Buryatiya, California, Cameroon, Cape Provinces, Cayman Is., Central European Rus, Chile Central, Chile North, Chile South, China North-Central, China South-Central, China Southeast, Colombia, Colorado, Connecticut, Corse, Costa Rica, Cuba, Czechoslovakia, Delaware, Denmark, District of Columbia, Dominican Republic, East European Russia, East Himalaya, Ecuador, El Salvador, Eritrea, Ethiopia, Falkland Is., Fiji, Finland, Florida, France, Free State, French Guiana, Føroyar, Galápagos, Georgia, Germany, Great Britain, Greece, Guatemala, Guyana, Haiti, Honduras, Hungary, Iceland, Idaho, Illinois, Indiana, Inner Mongolia, Iowa, Ireland, Irkutsk, Italy, Jamaica, Japan, Juan Fernández Is., Kamchatka, Kansas, Kazakhstan, Kentucky, Kenya, Khabarovsk, Korea, Krasnoyarsk, Kuril Is., KwaZulu-Natal, Labrador, Lebanon-Syria, Leeward Is., Lesotho, Lesser Sunda Is., Louisiana, Madagascar, Maine, Malawi, Manchuria, Manitoba, Marquesas, Maryland, Masachusettes, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Mongolia, Mozambique, Myanmar, Namibia, Nansei-shoto, Nebraska, Nepal, Netherlands, Netherlands Antilles, 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, Norfolk Is., North Carolina, North Dakota, North European Russi, Northern Provinces, Northern Territory, Northwest European R, Norway, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Pakistan, Panamá, Paraguay, Pennsylvania, Peru, Philippines, Poland, Portugal, Primorye, Prince Edward I., Puerto Rico, Queensland, Québec, Rhode I., Romania, Rwanda, Sakhalin, Saskatchewan, South Australia, South Carolina, South Dakota, Southwest Caribbean, Spain, Sudan, Suriname, Swaziland, Sweden, Switzerland, Taiwan, Tanzania, Tasmania, Tennessee, Texas, Tibet, Trinidad-Tobago, Turkey, Turkey-in-Europe, Turks-Caicos Is., Tuva, Uganda, Ukraine, Uruguay, Utah, Venezuela, Venezuelan Antilles, Vermont, Victoria, Vietnam, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Western Australia, Windward Is., Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yugoslavia, Zambia, Zaïre, Zimbabwe

    Introduced into:

    Andaman Is., Ascension, Assam, Azores, Baleares, Bangladesh, Benin, Bermuda, Burkina, Canary Is., Cape Verde, Caroline Is., Central African Repu, Chad, Christmas I., Congo, Cook Is., Crozet Is., Cyprus, Desventurados Is., Djibouti, East Aegean Is., Easter Is., Egypt, Gabon, Ghana, Gilbert Is., Guinea, Gulf of Guinea Is., Gulf States, Hainan, India, Iran, Ivory Coast, Kazan-retto, Kerguelen, Kermadec Is., Kirgizstan, Kriti, Krym, Laos, Liberia, Libya, Madeira, Malaya, Marianas, Mauritius, Montana, Morocco, Nauru, Nicobar Is., Niue, Ogasawara-shoto, Oman, Palestine, Qinghai, Rodrigues, Réunion, Samoa, Sardegna, Saudi Arabia, Selvagens, Seychelles, Sicilia, Sierra Leone, Sinai, Socotra, Solomon Is., Somalia, South China Sea, Sri Lanka, St.Helena, Tadzhikistan, Thailand, Togo, Tonga, Transcaucasus, Tristan da Cunha, Tunisia, Uzbekistan, Vanuatu, Yemen

    Oxalis L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Harley, R.M. [55746], Brazil K001198517
    Harley, R.M. [55746], Brazil K001198518
    Harley, R.M. [16483], Brazil K001198522
    Harley, R.M. [21305], Brazil K001198523
    Harley, R.M. [54826], Brazil K001198524
    Harley, R.M. [16175], Brazil K001198525
    Harley, R.M. [5127], Brazil K001198528
    Harley, R.M. [15246], Brazil K001198530
    Harley, R.M. [56518], Brazil K001198544
    Harley, R.M. [56491], Brazil K001198545
    Harley, R.M. [55873], Brazil K001198562
    Hatschbach, G. [65113], Brazil K001198527
    Rico, L. [1426], Bolivia K000295416
    Rico, L. [1355b], Bolivia K000295495
    Rico, L. [1442], Bolivia K000295330
    Rico, L. [1569], Bolivia K000295181
    Rico, L. [1584], Bolivia K000295196
    Rico, L. [1586], Bolivia K000295198
    Rico, L. [1589], Bolivia K000295201
    Rico, L. [1591], Bolivia K000295203
    Rico, L. [1611], Bolivia K000295230
    Rico, L. [1615], Bolivia K000295234
    Pearson, H.P.N. [13], Brazil K001198534
    Fevereiro, V.P.B. [M/372], Brazil K001198553
    Ratter, J.A. [6489], Brazil K001198547
    Giulietti, A.M. [3305], Brazil K001198516
    Giulietti, A.M. [13722], Brazil K001198550
    Giulietti, A.M. [CFCR 13722], Brazil K001198551
    Souza, V.C. [5519], Brazil K001198521
    Souza, V.C. [5445], Brazil K001198526
    Souza, V.C. [5256], Brazil K001198529
    Souza, V.C. [CFCR 13927], Brazil K001198548
    Souza, V.C. [5511], Brazil K001198549
    Sakuragui, C.M. [CFCR 15222], Brazil K001198552
    Pirani, J.R. [1912], Brazil K001198538
    Coradin, L. [6579], Brazil K001198519
    Coradin, L. [6041], Brazil K001198532
    Spruce, R. [5457], Ecuador K000202252
    Guedes, M.L. [PCD 5203], Brazil K001198520
    Silva, L.F. [187], Brazil K001198556
    Silva, L.F. [67], Brazil K001198557
    Silva, L.F. [170], Brazil K001198560
    Heringer, E.P. [14206], Brazil K001198539
    Gasson, P. [6025], Brazil K001198531
    Souza, E.B. [104], Brazil K001198558
    Simon, M.F. [1803], Brazil K001198540
    Simon, M.F. [1790], Brazil K001198541
    Brooks, R.R. [401], Brazil K001198542
    Brooks, R.R. [TMEX 662], Brazil K001198543
    Lucas, E.J. [909], Brazil K001198537
    Lucas, E.J. [534], Brazil K001198561
    Smith, D. [37], Brazil K001198546
    Tschá, M.C. [716], Brazil K001198559
    Inácio, E. [213], Brazil K001198555
    Rosa, N.A. [3826], Brazil K001198533
    Zappi, D. [462], Brazil K001198536
    Miers [3117], Brazil K001198563
    Dahl, A. [613], Cameroon K000436148
    s.coll. [345], Brazil K001198564
    s.coll. [s.n.], Brazil K001198566
    s.coll. [557], Ecuador K001198565
    Burchell [7631], Brazil K001198535
    Agrá, M.F. [722], Brazil K001198554

    First published in Sp. Pl.: 433 (1753)

    Accepted by

    • Tutin, T.G. & al. (eds.) (1968). Flora Europaea 2: 1-469. Cambridge University Press.


    Flora of West Tropical Africa
    • —F.T.A. 1: 295.
    Flora Zambesiaca
    • Gen. Pl. ed. 5: 198 (1754).
    • Sp. Pl. 1: 433 (1753)
    Flora of Tropical East Africa
    • L., Gen. Pl., ed. 5: 198 (1754)
    • Sp. Pl.: 433 (1753)


    Flora Zambesiaca
    Flora Zambesiaca

    Flora of Tropical East Africa
    Flora of Tropical East Africa

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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

    Kew Science Photographs
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics.