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

        This species is accepted, and its native range is Mexico to Tropical America.

    [FTEA]

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

    Habit
    Annual or perennial much branched herb 10–30 cm. high.
    Stem
    Stems creeping, sometimes ascending, frequently rooting at the nodes.
    Leaves
    Leaves alternate, digitately 3-foliolate, with adnate stipules at the base; stipules 1.5–2 mm. long, ciliate or rarely glabrous; leaflets sessile, ± equal, obcordate, with a narrow sinus about one-third of way down, cuneate, pilose, particularly beneath and at margins.
    Flowers
    Flowers in 1–6-flowered pseudumbels; peduncles axillary, 1–8 cm. long, about as long as the petioles, pubescent or glabrous, ascending; bracts 2–many, linear-lanceolate, 2–4 mm. long, acute to acuminate, pilose; pedicels 7–15 mm. long.
    Calyx
    Sepals ovate-lanceolate, 2–5 mm. long, hairy.
    Corolla
    Petals yellow, shallowly emarginate, cuneate, 4–10 mm. long.
    Filaments
    Filaments glabrous, the long ones as long as the sepals.
    Style
    Styles hairy, about as long as the long filaments.
    Fruits
    Capsule linear-oblong, usually abruptly narrowing at apex, (4–)9–17 mm. long, puberulous.
    Seeds
    Seeds 1–many per locule, ovoid-ellipsoid, flattened, brown, transversely ridged.
    Figures
    Fig. 1/5, p. 4.
    [FWTA]

    Oxalidaceae, Hutchinson and Dalziel. Flora of West Tropical Africa 1:1. 1954

    Habit
    A variable, diffuse, slender herb
    Leaves
    The leaves green or reddish-brown
    Flowers
    Flowers yellow
    Ecology
    A weed of waste ground, common in most places, but rare in Sierra Leone (fide Deighton, 1941).
    [FZ]

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

    Habit
    A much-branched annual herb, usually creeping and often rooting at the nodes; bulb absent; stems usually procumbent, crisped-pubescent.
    Leaves
    Leaves scattered along the stem; leaflet-lamina 3–15 × 5–20 mm., obcordate-cuneate, pubescent, both surfaces minutely faveolate, apex deeply emarginate, margin entire and ciliate, base cuneate; petiole 1–5 cm. long, pubescent, broadened or winged at the base (sometimes described as stipulate).
    Flowers
    Flowers yellow (rarely pale pink), homostylous in 1–6-flowered pseudumbels; peduncle up to 5 cm. long, usually slightly exceeding the petiole, with pubescent filiform bracts up to 4 mm. long; pedicels up to 15 mm. long, pubescent.
    Corolla
    Petals up to 10 mm. long, narrowly cuneate, glabrous. Sepals up to 5–6 × 1–2 mm., oblong-lanceolate, pubescent, without apical calli.
    Stamens
    Stamens with longer filaments 4–4·5 mm. long and shorter ones 3·5–4 mm. long, edentate.
    Pistil
    Styles 5 mm. long, pubescent. Loculi ? -ovulate.
    Fruits
    Capsule up to 25 mm. long, exserted, subcylindric, ± 5-angled, beaked at the apex and terminating in the persistent remains of the styles, pubescent with reflexed hairs.
    Seeds
    Seeds 1·5–1·8 × 1–1·2 mm., flattened-ellipsoid, rugose, glabrous.
    [FTEA]

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

    Habit
    Perennial herb, with usually thin stems arising from a thick tuberous main rootstock 5 mm. or more across.
    Stem
    Stems erect or ascending, not rooting at the nodes, somewhat angular, loosely pubescent with spreading hairs, more densely so at the nodes and on young parts.
    Leaves
    Leaves alternate or rarely fasciculate, very like those of O. corniculata but with no stipules at the base of the petiole; leaflets very variable in size, usually softly hairy on both sides, sparsely so on the upper side, ciliate at margins.
    Inflorescences
    Peduncles axillary, usually l–l.5(–2.5) times as long as the subtending petioles; bracts 2–many, variable, linear to oblanceolate, ciliate; pedicels 1–2 cm. long, with short spreading hairs which sometimes appear curly on dry specimens.
    Calyx
    Sepals linear-lanceolate, up to 5 mm. long, often tinged with purple, softly hairy and ciliate at apex.
    Corolla
    Petals usually appearing pinkish in bud, sometimes with reddish markings in the throat and greenish-yellow at the base, 10 mm. long or rarely longer, glabrous, sometimes ciliate at the top.
    Filaments
    Short filaments glabrous or rarely hairy; long filaments glabrous or pilose, as long as the sepals or longer.
    Pistil
    Styles 5, as long as the long filaments or intermediate in length between the 2 filament whorls or shorter than both whorls (specimens from Moroto), hirsute; stigmas laciniate.
    Fruits
    Capsule cylindrical, gradually tapering to the persistent styles, 5-lobed, up to 3 cm. long, closely pubescent with hairs usually pointing backwards.
    Seeds
    Seeds many in each locule, brown, somewhat flattened and transversely ridged.
    Figures
    Fig. 1/6.
    Habitat
    Forest clearings, grassland, rocky slopes, a weed on cultivated ground and roadsides; 300–2100(–2400) m.
    Distribution
    N. Nigeria east to the Somali Republic and south to Mozambique, Malawi and Zambia K1 K3 K4 K5 K6 K7 T1 T2 T3 T4 T5 T6 T7 U1

    Images

    Distribution

    Native to:

    Bahamas, Cayman Is., Colombia, Costa Rica, Cuba, Dominican Republic, El Salvador, Guatemala, Gulf States, Haiti, Honduras, Jamaica, Kazakhstan, Leeward Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Netherlands Antilles, New Mexico, Nicaragua, Oman, Panamá, Peru, Puerto Rico, Trinidad-Tobago, Venezuela, Windward Is., Yemen

    Introduced into:

    Alabama, Albania, Algeria, Andaman Is., Angola, Argentina Northeast, Argentina Northwest, Arkansas, Ascension, Assam, Austria, Azores, Baleares, Bangladesh, Belgium, Benin, Bermuda, Bolivia, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Bulgaria, Burkina, Burundi, California, Cameroon, Canary Is., Cape Provinces, Cape Verde, Central African Repu, Chad, Chile Central, Chile South, Christmas I., Colorado, Congo, Connecticut, Cook Is., Corse, Crozet Is., Czechoslovakia, Desventurados Is., District of Columbia, Djibouti, East Aegean Is., East Himalaya, Easter Is., Ecuador, Egypt, Eritrea, Ethiopia, Fiji, Finland, Florida, France, Free State, French Guiana, Gabon, Galápagos, Germany, Ghana, Gilbert Is., Great Britain, Greece, Guinea, Gulf of Guinea Is., Guyana, Hungary, Illinois, India, Indiana, Iran, Ireland, Italy, Ivory Coast, Japan, Juan Fernández Is., Kazan-retto, Kentucky, Kenya, Kerguelen, Khabarovsk, Kirgizstan, Korea, Kriti, Krym, Kuril Is., KwaZulu-Natal, Lesotho, Lesser Sunda Is., Liberia, Libya, Louisiana, Madagascar, Madeira, Maine, Malawi, Masachusettes, Mauritius, Missouri, Morocco, Mozambique, Nansei-shoto, Nauru, Netherlands, New Caledonia, New Jersey, Newfoundland, Nicobar Is., Nigeria, Niue, Norfolk Is., North Carolina, Northern Provinces, Norway, Ogasawara-shoto, Ontario, Oregon, Pakistan, Paraguay, Pennsylvania, Poland, Portugal, Primorye, Prince Edward I., Rodrigues, Romania, Rwanda, Réunion, Samoa, Sardegna, Saudi Arabia, Selvagens, Seychelles, Sicilia, Sierra Leone, Sinai, Socotra, Solomon Is., Somalia, South Carolina, Spain, St.Helena, Sudan, Suriname, Swaziland, Sweden, Switzerland, Tanzania, Tennessee, Texas, Togo, Tonga, Tristan da Cunha, Tunisia, Turkey-in-Europe, Uganda, Ukraine, Uruguay, Vanuatu, Vermont, Virginia, West Himalaya, West Virginia, Yugoslavia, Zambia, Zaïre, Zimbabwe

    Common Names

    English
    Creeping lady's sorrel, Creeping oxalis, Creeping sorrel, Jimson weed, Oxalis, Wood sorrel, Yellow sorrel

    Oxalis corniculata L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Aug 1, 2005 Darbyshire, I. [328], Cameroon K000199836
    Sep 1, 2002 Cheek, M. [9034], Cameroon K000008086
    Sep 1, 2002 Etuge, M. [1599], Cameroon K000008087
    Mar 1, 1997 Munyenyembe, P. [711], Cameroon K000337699
    Jan 1, 1993 Tchouto (Mbatchou), P. [319], Cameroon K000540162
    Jan 1, 1993 Tchouto (Mbatchou), P. [370], Cameroon K000540164
    Jan 1, 1979 Bauer, P.J. [184], Cameroon K000094335
    Jan 1, 1979 Bauer, P.J. [184], Cameroon K000094336
    Jan 1, 1979 Gardner [4486], Brazil K000996381
    Jan 1, 1976 Hepper, F.N. [1870], Cameroon K000094334
    Jan 1, 1976 Olorunfemi, J. [FHI 30571], Cameroon K000094325
    Jan 1, 1976 Ball, J. [s.n.], Brazil K000996372
    Jan 1, 1976 Mann, G. [2020], Cameroon K000094348
    Jan 1, 1976 Colenso [1985], New Zealand K000692036 Unknown type material
    Jan 1, 1976 Spruce, R. [5784], Ecuador K000202256
    Jan 1, 1976 Spruce, R. [5784], Ecuador K000202257
    Jan 1, 1976 Spruce, R. [5784], Ecuador K000202258
    Jan 1, 1976 Britton, N.L. [312], Trinidad-Tobago K000531542 Unknown type material
    Jan 1, 1976 Cunningham, R. [591], New Zealand K000692031
    Jan 1, 1976 Cunningham, R. [589], New Zealand K000692033
    Jan 1, 1976 Cunningham, R. [586], New Zealand K000692037 Unknown type material
    Jan 1, 1976 Cunningham, R. [234], New Zealand K000692034 Unknown type material
    Jan 1, 1976 Cunningham, R. [587], New Zealand K000692035 Unknown type material
    Jan 1, 1976 Cheeseman, T.F. [6], New Zealand K000692030
    Jan 1, 1976 s.coll. [s.n.] K000692010 isotype
    Jan 1, 1976 s.coll. [s.n.], Australia K000692022
    Jan 1, 1976 Cunningham, A. [591], New Zealand K000692032
    Jan 1, 1976 Brunt, M.A. [432], Cameroon K000094328
    Jan 1, 1976 Brunt, M.A. [498], Cameroon K000094340
    Jan 1, 1975 Vigurs, C.C. [s.n.], United Kingdom K000720986
    Feb 1, 1970 s.coll. [4486], Brazil K000996376
    Jan 1, 1970 Burchell [1516], Brazil K000996375
    Dec 1, 1969 Glaziou, A.F.M. [5579], Brazil K000996379
    Jul 1, 1969 Gaudichaud [s.n.], Brazil K000996382
    Jul 1, 1969 s.coll. [392], Brazil K000996378
    Jan 1, 1966 s.coll. [s.n.], Brazil K000996374
    Jan 1, 1964 Eiten, L.T. [3], Brazil K000996384
    Jan 1, 1963 Eiten, G. [5359], Brazil K000996385
    Jan 1, 1960 Eiten, G. [2463], Brazil K000996369
    Andrews [180], Australia K000692005
    Lourteig, A. [1830], Brazil K000996383
    Gehrt, A. [s.n.], Brazil K000996371
    Wallich, N. [Cat. no. 4347], India K001038777
    Wallich, N. [Cat. no. 4347], Myanmar K001038779
    Wallich, N. [Cat. no. 4347], Myanmar K001038780
    Webb, W.S. [Cat. no. 4347], India K001038774
    Webb, W.S. [Cat. no. 4347], India K001038775
    Boog [s.n.], Brazil K000996377
    Cope, T.A. [RBG 267], Great Britain K000914267
    Pillon, Y. [s.n.], France K000696152
    Cunningham, A. [540], New Zealand K000692004
    Cunningham, A. [584], New Zealand K000692006
    Cunningham, A. [235] K000692009
    Cunningham, A. [592] K000692021 Unknown type material
    [Durville] [322] K000692008
    De Silva, F. [Cat. no. 4347] K001038776
    s.coll. [Cat. no. 4347] K001038768
    s.coll. [Cat. no. 4347] K001038769
    s.coll. [Cat. no. 4347] K001038770
    s.coll. [Cat. no. 4347] K001038771
    s.coll. [Cat. no. 4347], India K001038772
    s.coll. [Cat. no. 4347], India K001038773
    s.coll. [Cat. no. 4347] K001038778
    s.coll. [s.n.], Brazil K000996373
    s.coll. [s.n.], Brazil K000996380
    Teixeira, M.E.E. [s.n.], Brazil K000996370
    Jan 1, 1974 Carr, C.E. [14778], Papua New Guinea Oxalis corniculata var. villosa K000692019 lectotype
    May 1, 1972 Oxalis corniculata var. villosa K000531577
    May 1, 1972 Gardner [345], Brazil Oxalis corniculata var. villosa K000996367
    Glaziou, A.F.M. [s.n.], Rio de Janeiro Oxalis corniculata var. villosa K000531578
    Gardner [345], Brazil Oxalis corniculata var. villosa K000996368
    Warming, E. [s.n.], Brazil Oxalis villosa K001198385
    Regnell [s.n.], Brazil Oxalis villosa K001198386
    May 17, 2005 McCornish, J.D. [122], Norfolk Island Oxalis radicosa K000380118
    Oct 1, 1974 Baron, R. [2110], Madagascar Oxalis radicosa K000417410 Unknown type material
    Oct 1, 1974 Parker, G.W. [132], Madagascar Oxalis radicosa K000417409
    Jan 1, 1968 Petit [80], Ethiopia Oxalis radicosa K000417430
    Mar 1, 1973 Hooker, J.D. [8/94], Australia Oxalis perennans K000692028
    Pringle, C.G. [8659], Jalisco Oxalis furcata K000531544

    First published in Sp. Pl.: 435 (1753)

    Accepted by

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    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

    Flora of West Tropical Africa
    Flora of West Tropical Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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 2018. 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 2018. 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

    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

    Plants and People Africa
    Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
    © Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/