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This genus is accepted, and its native range is Cosmopolitan.
Oxalis (Oxalidaceae)

[FTEA]

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

Morphology General Habit
Caulescent or acaulescent perennial or annual herbs, bulbous or not
Morphology Leaves
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
Morphology Reproductive morphology Flowers
Flowers pedicellate, subtended by bracts, in pseudumbels or cymes or solitary, usually trimorphic heterostylous (largely homostylous in O. corniculata)
Morphology Reproductive morphology Flowers Calyx
Sepals sometimes with apical calli
Morphology Reproductive morphology Flowers Corolla
Petals contorted in bud, falsely connate near the base
Morphology Reproductive morphology Flowers Androecium Stamens
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
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary of 5 fused carpels, with 1–many ovules in each carpel; stigma terminal, capitate, 2-fid or laciniate
Morphology Reproductive morphology Fruits
Fruit a capsule, with the valves persisting around the central column
Morphology Reproductive morphology Seeds
Seeds brown, covered by a white fleshy integument, which bursts elastically by contraction expelling the seeds when ripe.

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Herbs, sometimes with a tuber
Morphology Leaves
Leaves digitately or pinnately (1–)3-foliolate, petiolate, drooping at night
Morphology Reproductive morphology Inflorescences
Flowers in pseudo-umbels or cymes, or solitary, usually heterostylous
Morphology Reproductive morphology Flowers Corolla
Petals contorted in bud
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 10
Morphology Reproductive morphology Fruits
Fruit a capsule, with the valves persisting around the central column
Morphology Reproductive morphology Seeds
Seeds brown, covered by a white fleshy integument, which bursts elastically by contraction expelling the seeds when ripe.
Distribution
Some 550 species, cosmopolitan, but the majority in America and South Africa.

[FZ]

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

Morphology General Habit
Caulescent or acaulescent annual or perennial herbs, usually bulbous, occasionally suffruticose.
Morphology Leaves
Leaves radical or cauline, alternate or often in a cluster, digitately 3-foliolate (in our area) or pinnately 3-foliolate or sometimes 1-foliolate.
Morphology Reproductive morphology Flowers
Flowers actinomorphic, usually heterostylous (homostylous in O. corniculata), solitary or subtended by bracts in pseudumbels or cymes.
Morphology Reproductive morphology Flowers Corolla
Petals contorted, unguiculate; claws ± coherent to form a false tube.
Morphology Reproductive morphology Flowers Androecium Stamens
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.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary with several ovules in each loculus; ovules anatropous.
Morphology Reproductive morphology Fruits
Capsule loculicidally dehiscent.
Morphology Reproductive morphology Seeds
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, Assam, 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, Chatham Is., 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, Massachusetts, 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 Caucasus, 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, Transcaucasus, 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, Azores, Baleares, Bangladesh, Benin, Bermuda, Borneo, Burkina, Cambodia, 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, Jawa, Kazan-retto, Kerguelen, Kermadec Is., Kirgizstan, Kriti, Krym, Laos, Liberia, Libya, Madeira, Malaya, Maluku, 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, Sulawesi, Sumatera, Tadzhikistan, Thailand, Togo, Tonga, Tristan da Cunha, Tunisia, Uzbekistan, Vanuatu, Yemen

Oxalis L. appears in other Kew resources:

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

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

Accepted by

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

Literature

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 Somalia

  • Flora Somalia, Vol 1, (1993) Author: by M. Thulin & G. Moggi [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • L., Gen. Pl., ed. 5: 198 (1754)
  • Sp. Pl.: 433 (1753)

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

Flora of Somalia
Flora of Somalia
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

Herbarium Catalogue Specimens
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 2021. 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 2021. 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/

Neotropikey
Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics.
http://creativecommons.org/licenses/by/3.0