Oxalis corniculata L., Oxalidaceae

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Present on Pacific Islands?  yes

Threat only at high elevations?  no

Other Latin names:  Oxalis repens Thunb.

Common name(s): [more details]

Bicolano: daraisig

Bontoc: kanapa, salamagi

Chamorro: agsom, apsom

English: clover sorrel, creeping lady's-sorrel, creeping oxalis, creeping wood sorrel, creeping yellow oxalis, procumbent yellow sorrel, sheep sorrel, sour grass, wood sorrel, yellow wood sorrel

Fijian: matakonikoni, rongomi, totowiwi

French: oseille filante, petit trèfle, pied de pigeon, trèfle jaune

Hawaiian: ‘ihi ‘ai, ‘ihi ‘awa, ‘ihi maka ‘ula, ‘ihi mākole

Ibatan: pikhik

Ilocano: marasiksik

Japanese: katabami

Maori (Cook Islands): kavakava, kōki‘i, kōki‘i, kōki‘i, kōkī‘i, kōki‘i, kōki‘i, kōki‘i, kōki‘i kura

Niuean: kihikihi

Palauan: omis

Pampangan: malabalug-dagis

Samoan: a‘aa‘a, ‘i‘i, ‘ii, ‘i‘i, ‘ii

Spanish: acedera, acederilla, agrito, chulco, hierba de la perdiz, trébol, vinagrillo

Tagalog: taingang-daga

Tahitian: patoa ‘ava‘ava

Tongan: kihikihi

Yapese: gougus

Habit:  herb

Description:  "A caespitose or creeping herb, with stems rarely exceeding 50 cm in length, usually rooting at nodes and ascending toward apices, variably pilose on stems, petioles, and leaflet blades; stipules usually present but inconspicuous, to 3 mm long; indument composed of eseptate hairs (sometimes hairs of capsules septate); petioles 1-6 cm long, the leaflets subsessile and subequal, the blades obcordate, 4-20 mm long and broad, incised 1/4 - 1/2 their length, the sinus acute to obtuse, the lobes usually rounded; inflorescences 1-6-flowered, usually 2-7 cm long, the bracts and bracteoles deltoid-linear, 0.5-3 mm long, the pedicels 4-15 mm long, with eseptate hairs; sepals lanceolate to narrowly ovate, 2.5-6 mm long; petals yellow, oblong subspathulate, somewhat larger than sepals; capsules subcylindric, acute, 5-20 x 2-4 mm, sometimes with septate hairs, with 5-10 seeds per locule."  (Smith, 1985; pp. 625-626).

Key to varieties (Smith, 1985; pp. 625-626):

"Plants comparatively large, with prostrate or repent stems up to 50 cm long; stems, stipules, and leaves green; capsule retrorse-pubescent.
    Var. corniculata:  Leaflet blades glabrous or sometimes sparsely pubescent on both surfaces, the upper surface more sparsely pilose than the lower.
    Var. villosa:  Leaflet blades copiously pilose on both surfaces.
Plants smaller, less inclined to sprawl; stems, stipules, and leaves purplish; capsule slightly pubescent to glabrous: var. atropurpurea."

Habitat/ecology:  "A cosmopolitan weed of the tropical and temperate zones.  It is at home in gardens, lawns, arable land, and pastures.  It is frequently found also on channel banks and in shady places.  It prostrate habit helps protect it from being mowed in lawns" (Holm et al., 1977; p. 345).

In Hawai‘i, "occurring in open, disturbed sites in coastal to subalpine habitats, 0-2,300 m" (Wagner et al., 1999; p. 1002). In Fiji, "occurs at elevations from near sea level to about 750 m as a common weedy plant along roads and trails, in moist places, pastures, waste places, plantations, and in villages (Smith, 1985; pp. 625-626). Moist uplands in the Galápagos Islands (McMullen, 1999; p. 209). In New Guinea, "a plant of grassland, broken forest, rock faces, and a weed of gardens, roadsides and waste land. From near sea level to at least 2800 m" (Henty & Pritchard, 1975; p. 131). In Tonga, "a common plantation and waste-area weed" (Yuncker, 1959; p. 151).

Propagation:  Seed and rooting from nodes. "Spread is mainly due to high production of fertile seed. An elastic jacket or aril surrounds the small brown seeds and this serves to eject them from the capsule. Its presence on all continent and many islands indicates that its seeds are carried by birds" (Holm et al., 1977; pp. 343, 345).

Native range:  Cosmopolitan, origin uncertain (Smith, 1985; pp. 625-626).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
American Samoa Manu‘a Islands	Ofu Island	introduced abo. intro.	Whistler, W. A. (1990) (p. 8) Voucher cited: Yuncker 9482
American Samoa Manu‘a Islands	Olosega Island	introduced abo. intro.	Whistler, W. A. (1990) (p. 8) Voucher cited: Garber 1082
American Samoa Manu‘a Islands	Ta‘u Island	introduced abo. intro.	Whistler, W. A. (1990) (p. 8) Vouchers cited: Harris 34, Harris 82
American Samoa Tutuila Islands	Tutuila Island		Anon. (1988) (p. 2)
Australia (Pacific offshore islands) Lord Howe Island	Lord Howe Island	native	Orchard, Anthony E., ed. (1994) (p. 20) "This is a cosmopolitan species of uncertain origin, usually found in disturbed ground". Vouchers cited: P.S. Green 1559 (A, K), M.M.J. van Balgooy 1054 (K, NSW), G. Uhe 1267 (K)
Australia (Pacific offshore islands) Norfolk Islands	Norfolk Island	native	Orchard, Anthony E., ed. (1994) (p. 10) "This is a cosmopolitan species of uncertain origin, usually found in disturbed ground". Vouchers cited: W.R. Sykes NI 520 (CHR), J.D. McComish 122A (K), R.D. Hoogland 11330 (NSW)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Alamagan Island	introduced	Ohba, T. (1994) (p. 59) Voucher cited: CBM-BS-58856
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Maug Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 121)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Maug Island	introduced invasive	Fosberg, F. R./Falanruw, M. V. C./Sachet, M.-H. (1975) (p. 29) Voucher cited: Falanruw 2224 (US)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Pagan Island	native	Raulerson, L. (2006) (p. 39) Var. villosa (Bieb.) Hohen.
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Rota Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 121) Var. villosa (Bieb.) Hohen.
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Saipan Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 121)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Sarigan Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 121)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Sarigan Island	introduced invasive	Fosberg, F. R./Falanruw, M. V. C./Sachet, M.-H. (1975) (p. 29) Voucher cited: Evans 2387 (US)
Commonwealth of the Northern Mariana Islands (US) Northern Mariana Islands	Tinian Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 121)
Cook Islands Southern Cook Islands	Aitutaki Atoll	introduced invasive abo. intro.	McCormack, Gerald (2007) Naturalized
Cook Islands Southern Cook Islands	‘Atiu Island	introduced invasive abo. intro.	McCormack, Gerald (2007) Naturalized
Cook Islands Southern Cook Islands	Mangaia Island	introduced invasive abo. intro.	McCormack, Gerald (2007) Naturalized
Cook Islands Southern Cook Islands	Ma‘uke Island	introduced invasive abo. intro.	McCormack, Gerald (2007) Naturalized
Cook Islands Southern Cook Islands	Miti‘aro Island	introduced invasive abo. intro.	McCormack, Gerald (2007) Naturalized
Cook Islands Southern Cook Islands	Rarotonga Island	introduced invasive abo. intro.	McCormack, Gerald (2007) Naturalized
Federated States of Micronesia Pohnpei Islands	Pohnpei Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 121)
Federated States of Micronesia Pohnpei Islands	Pohnpei Island		Glassman, S. F. (1952) (p. 57) Voucher cited: Glassman 2840 (US)
Federated States of Micronesia Yap Islands	Fais Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 121)
Federated States of Micronesia Yap Islands	Fais Island	introduced invasive	Fosberg, F. R./Evans, M. (1969) (p. 8) Voucher cited: Fosberg 46669 (US)
Federated States of Micronesia Yap Islands	Yap (Waqab) Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 121)
Fiji Fiji Islands	Lakemba Island	introduced invasive abo. intro.	Smith, Albert C. (1985) (pp. 625-626) Voucher cited: Garnock-Jones 898
Fiji Fiji Islands	Mothe Island	introduced invasive abo. intro.	Smith, Albert C. (1985) (pp. 625-626) Voucher cited: Bryan 477
Fiji Fiji Islands	Nairai Island	introduced invasive abo. intro.	Smith, Albert C. (1985) (pp. 625-626) Vouchers cited: Milne 160, Milne 209
Fiji Fiji Islands	Taveuni Island	introduced invasive abo. intro.	Smith, Albert C. (1985) (pp. 625-626) Voucher cited: DA 5741
Fiji Fiji Islands	Vanua Levu Island	introduced invasive abo. intro.	Smith, Albert C. (1985) (pp. 625-626) Voucher cited: Smith 6663
Fiji Fiji Islands	Viti Levu Island	introduced invasive abo. intro.	Smith, Albert C. (1985) (pp. 625-626) Vouchers cited: Smith 4326 (var. villosa), Gillespie 4161.1 (var. villosa), DA 10831, Smith 8813, Greenwood 764, DA 9577, DA 11106, DA 7545, Smith 7087, DA 7416
French Polynesia Marquesas Islands	Marquesas Islands	introduced invasive cultivated	Welsh, S. L. (1998) (p. 211)
French Polynesia Society Islands	Huahine Island		Fosberg, F. R. (1997) (p. 91)
French Polynesia Society Islands	Maupiti (Maurua) Island	introduced invasive cultivated	Welsh, S. L. (1998) (p. 211) Voucher cited: Fosberg 60951
French Polynesia Society Islands	Maupiti (Maurua) Island	introduced invasive	Fosberg, F. R./Sachet, M.-H. (1987) (p. 39) Voucher cited: Fosberg 60951 (US)
French Polynesia Society Islands	Mehetia (Mahetia, Meetia) Island	introduced invasive cultivated	Welsh, S. L. (1998) (p. 211) Voucher cited: Gagne 1617
French Polynesia Society Islands	Moorea Island	introduced invasive cultivated	Welsh, S. L. (1998) (p. 211) Voucher cited: C. Cartier 134
French Polynesia Society Islands	Raiatea (Havai) Island	introduced invasive cultivated	Welsh, S. L. (1998) (p. 211) Vouchers cited: Moore 52, BRY 26574a
French Polynesia Society Islands	Taha‘a Island	introduced invasive cultivated	Welsh, S. L. (1998) (p. 211) Voucher cited: BRY 26523
French Polynesia Society Islands	Tahiti Island	introduced invasive cultivated	Welsh, S. L. (1998) (p. 211) Vouchers cited: Setchell & Parks 134, BRY 25960
French Polynesia Tuamotu Archipelago	Takapoto Atoll	introduced invasive	Sachet, M-H. (1983) (p. 24) Voucher cited: Sachet 2045 (US)
French Polynesia Tuamotu Archipelago	Tuamotu Islands		Swarbrick, John T. (1997) (p. 95)
Guam Guam Island	Guam Island	native	Stone, Benjamin C. (1970) (p. 348) Voucher cited: Stone 4732 (GUAM)
Guam Guam Island	Guam Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 121) Also var. villosa (Bieb.) Hohen.
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	uncertain if native invasive abo. intro.	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1002-1003)
State of Hawaii Hawaiian Islands	Kaho‘olawe Island	uncertain if native invasive abo. intro.	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1002-1003)
State of Hawaii Hawaiian Islands	Kaua‘i Island	uncertain if native invasive abo. intro.	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1002-1003)
State of Hawaii Hawaiian Islands	Kure Atoll	introduced invasive	Starr, Forest/Starr, Kim/Loope, Lloyd L. (2003) (p. 29) Voucher cited: Starr & Martz 010522-8 (BISH)
State of Hawaii Hawaiian Islands	Lāna‘i Island	uncertain if native invasive abo. intro.	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1002-1003)
State of Hawaii Hawaiian Islands	Lehua Island	native invasive abo. intro.	Wood, K. R./LeGrande, Maya (2006) (pp. 24-25) Voucher cited: Flynn et al. 4866 (PTBG, US)
State of Hawaii Hawaiian Islands	Maui Island	uncertain if native invasive abo. intro.	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1002-1003)
State of Hawaii Hawaiian Islands	Moloka‘i Island	uncertain if native invasive abo. intro.	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1002-1003)
State of Hawaii Hawaiian Islands	Ni‘ihau Island	uncertain if native invasive abo. intro.	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1002-1003)
State of Hawaii Hawaiian Islands	O‘ahu Island	uncertain if native invasive abo. intro.	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1002-1003)
Japan (offshore islands) Bonin (Ogasawara) Islands	Bonin (Ogasawara) Islands		Kato, Hidetoshi (2007) Also var. trichocaulon H.Lév.
Kiribati Kiribati	Kiribati (Republic of)	native	Fosberg, F. R./Sachet, M.-H. (1987) (p. 17)
Marshall Islands Ratak Chain	Majuro (Mãjro) Atoll	introduced invasive	Vander Velde, Nancy (2003) (p. 114)
Nauru Nauru Island	Nauru Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 121)
Nauru Nauru Island	Nauru Island	introduced invasive	Thaman, R. R./Fosberg, F. R./Manner, H. I./Hassall, D. C. (1994) (p. 179) Voucher cited: Hassall 163 (SUVA)
New Caledonia Îles Loyauté (Loyalte Islands)	Île Walpole	native	Renevier, Alain/Cherrier, Jean-Francois (1991) (p. 18) Voucher cited: Cherrier in MacKee 44052
New Caledonia New Caledonia	New Caledonia Islands		Swarbrick, John T. (1997) (p. 95)
New Zealand (offshore islands) Kermadec Islands	Kermadec Islands	introduced invasive	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 917) "Mostly in and around settlements, waste places, roadsides, plantations and gardens, cultivated ground".
New Zealand (offshore islands) Kermadec Islands	Raoul Island	introduced invasive	Sykes, W. R. (1977) (pp. 122-123) Possible aboriginal introduction.
New Zealand (offshore islands) Kermadec Islands	Raoul Island	introduced invasive	Sykes, W. R./West, C. J. (1996) (pp. 450-451) Oxalis thompsoniae B.J. Conn & P.G. Richards
Niue Niue	Niue Island	introduced	Sykes, W. R. (1970) (p. 143) Vouchers cited: CHR 168721 (var. corniculata); CHR 168720, CHR 168722 (var. repens cv. Atropurpurea)
Niue Niue	Niue Island	introduced invasive abo. intro.	Whistler, W. A. (1988) (p. 31)
Niue Niue	Niue Island	introduced invasive abo. intro.	Whistler, W. A./Atherton, J. (1997) (p. 41)
Niue Niue	Niue Island	introduced invasive	Yuncker, T. G. (1943) (p. 66) Var. repens. Voucher cited: Yuncker 9925 (BISH) "Occasional roadside and plantation weed".
Niue Niue	Niue Island	introduced invasive abo. intro.	Space, James C./Waterhouse, Barbara M./Newfield, Melanie/Bull, Cate (2004) (p. 50)
Palau Palau (main island group)	Koror Island	native	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 121)
Papua New Guinea Papua New Guinea (eastern New Guinea Island)	Papua New Guinea (eastern New Guinea Island)		Henty, E. E./Pritchard, G. H. (1975) (p. 131)
Philippines Philippine Islands	Philippine Islands	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 347)
Pitcairn Islands Pitcairn Islands	Pitcairn Island	introduced	St. John, H. (1987) (p. 37) Vouchers cited: R. A. Young 14, Ross 34, Foberg & B. Christian 11233
Pitcairn Islands Pitcairn Islands	Pitcairn Island	introduced	Fosberg, F. R./Paulay, Gustav/Spencer, T./Oliver, Royce (1989) (p. 13) Voucher cited: Paulay, Spencer & Schuster 696 (US)
Samoa Western Samoa Islands	Western Samoa Islands	abo. intro.	Whistler, W. A. (1988) (p. 31)
Solomon Islands Solomon Islands	Solomon Islands		Swarbrick, John T. (1997) (p. 95)
Solomon Islands Solomon Islands	Solomon Islands	native	Hancock, I. R./Henderson, C. P. (1988) (p. 95)
Tonga Tonga Islands	Tonga Islands		Yuncker, T. G. (1959) (p. 151) "Throughout Tonga".
Tonga Tongatapu Group	‘Eua Island		Whistler, W. A. (1992) (p. 54) Voucher cited: Soakai 988 (EI)
Tonga Tongatapu Group	‘Eua Island		Yuncker, T. G. (1959) (p. 151) Vouchers cited: Hürlimann 201, Yuncker 15647
Tonga Tongatapu Group	Tongatapu Island		Whistler, W. A. (1992) (p. 54) Vouchers cited: Lawrence 10, Lawrence 15, Soakai 163
Tonga Tongatapu Group	Tongatapu Island		Yuncker, T. G. (1959) (p. 151) Vouchers cited: Hürlimann 15, Yuncker 15051
Tonga Vava‘u Group	Vava‘u Island		Whistler, W. A. (1992) (p. 54) Voucher cited: Soakai 1011
United States (other Pacific offshore islands) Midway Atoll	Midway Atoll	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1002-1003)
Vanuatu New Hebrides Islands	Vanuatu (Republic of)		Swarbrick, John T. (1997) (p. 95)
Wallis and Futuna Wallis and Futuna (Horne) Islands	Wallis and Futuna Islands		Waterhouse, D. F. (1997) (p. 63)

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Australia Australia (continental)	Australia (continental)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 259)
Australia Australia (continental)	Queensland	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 347)
Cambodia Cambodia	Cambodia (Kingdom of)	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 345)
Chile (continental) Chile	Chile (Republic of)		Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 347)
China China	China (People's Republic of)	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 347)
Colombia Colombia	Colombia (Republic of)		Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 347)
Costa Rica Costa Rica	Costa Rica (Republic of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 259)
El Salvador El Salvador	El Salvador (Republic of)		Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 345)
Guatemala Guatemala	Guatemala (Republic of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 259)
Indonesia Indonesia	Indonesia (Republic of)	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 347)
Japan Japan	Japan (country)	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 347)
South Korea South Korea	South Korea (Republic of)	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 347)
Malaysia Malaysia	Malaysia (country of)	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 347)
Mexico Mexico	Mexico (United Mexican States)		Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 347)
New Zealand New Zealand	New Zealand (country)	introduced invasive	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 917) "Mostly in and around settlements, waste places, roadsides, plantations and gardens, cultivated ground".
Perú Perú	Perú (Republic of)		Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 347)
Taiwan Taiwan	Taiwan Island	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (pp. 346-347)
Taiwan Taiwan	Taiwan Island		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 259)
Thailand Thailand	Thailand (Kingdom of)	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 346)
Vietnam Vietnam	Vietnam (Socialist Republic of)	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 346)

Indian Ocean
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Australia (Indian Ocean offshore islands) Christmas Island Group	Christmas Island	introduced invasive	Swarbrick, J. T. (1997) (p. 122)
Mauritius Mautitius Islands (Mauritius and Rodrigues)	Mauritius Island	introduced invasive	Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (pp. 346-347)

Comments:  Likely an early introduction to the Cook Islands, Fiji, Hawai‘i and probably other Pacific Islands but probably a modern introduction to some places (McCormack, 2003; Smith, 1985; Wagner et al., 1999).

Naturalized in fairly undisturbed habitats in the Galápagos Islands.

Additional information:  Additional online information about Oxalis corniculata is available from the Hawaiian Ecosystems at Risk project (HEAR).

Taxonomic information about Oxalis corniculata may be available from the Germplasm Resources Information Network (GRIN).

References:

Anon. 1988. Weed list for American Samoa by cropping system. Checklist dated 07/13/88, origin unknown. 3 pp.

Fosberg, F. R. 1997. Preliminary checklist of the flowering plants and ferns of the Society Islands. Ed. by David R. Stoddart. U. Cal. Berkeley.

Fosberg, F. R./Evans, M. 1969. A collection of plants from Fais, Caroline Islands. Atoll Research Bulletin No. 133. Smithsonian Institution, Washington. 15 pp.

Fosberg, F. R./Falanruw, M. V. C./Sachet, M.-H. 1975. Vascular flora of the northern Marianas Islands. Smithsonian Contrib. Bot. 22:1-45.

Fosberg, F. R./Otobed, D./Sachet, M.-H./Oliver, R. L./Powell, D. A./Canfield, J. E. 1980. Vascular plants of Palau with vernacular names. Department of Botany, The Smithsonian Institution, Washington, D.C. 43 pp.

Fosberg, F. R./Paulay, Gustav/Spencer, T./Oliver, Royce. 1989. New collections and notes on the plants of Henderson, Pitcairn, Oeno, and Ducie Islands. Atoll Research Bulletin No. 329. Smithsonian Institution, Washington. 18 pp.

Fosberg, F. R./Sachet, M.-H. 1987. Flora of the Gilbert Islands, Kiribati, checklist. Atoll Res. Bull. 295:1-33.

Fosberg, F. R./Sachet, M.-H. 1987. Flora of Maupiti, Society Islands. The Smithsonian Institution. Atoll Research Bulletin 294:1-70.

Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce. 1979. A geographical checklist of the Micronesian dicotyledonae. Micronesica 15:1-295.

Glassman, S. F. 1952. The flora of Ponape. Bishop Mus. Bull. 209: 1-152.

Hancock, I. R./Henderson, C. P. 1988. Flora of the Solomon Islands. Research Bulletin No. 7. Ministry of Agriculture and Lands, Honiara. 203 pp.

Henty, E. E./Pritchard, G. H. 1975. Weeds of New Guinea and their control. 2nd edition. Department of Forests, Division of Botany, Botany Bull. No. 7. Lae, Papua New Guinea. 180 pp.

Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. 1977. The world’s worst weeds: distribution and biology. East-West Center/University Press of Hawaii. 609 pp.

Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. 1979. A geographical atlas of world weeds. John Wiley & Sons, New York. 391 pp.

Kato, Hidetoshi. 2007. Herbarium records of Makino Herbarium, Tokyo Metropolitan University. Personal communication.

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