Pacific Island Ecosystems at Risk (PIER)

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Euphorbia thymifolia
L., Euphorbiaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Chamaesyce thymifolia (L.) Millsp.; Euphorbia microphylla Lam.

Common name(s): [more details]

Chinese: qian gen cao

English: chickenweed, dwarf spurge, gulf sandmat, red caustic creeper, thyme-leafed spurge

French: petite rougette

Marshallese: dãpijbok, dapijbok, nat‘to, natto

Spanish: golondrina

Habit:  herb

Description:  "Herbs, annual, 10-20 cm tall. Root fibrous. Stems slender and thin, many from base, usually prostrate, 1-2 (-3) mm thick, with many adventitious roots, sparsely pilose. Leaves opposite; stipules lanceolate or linear, 1-1.5 mm, easily fallen; petiole ca. 1 mm; leaf blade rounded or cordate, margin usually finely serrulate, occasionally entire, both surfaces pubescent. Cyathia single or numerous clustered and axillary, peduncle 1-2 mm, sparsely pilose; involucre campanulate to turbinate, ca. 1 x 1 mm, outside shortly pilose, marginal lobes 5, ovate; glands 4, appendage white. Male flowers few, slightly exserted from involucre. Female flower: pedicel short; ovary shortly pubescent; styles free; stigma 2-lobed. Capsule 3-angular-ovoid, ca. 1.5 x 1.3-1.5 mm, smooth, shortly pubescent. Seeds ovoid-tetragonal, ca. 0.7 x 0.5 mm, dark red, each side with 4 or 5 transverse furrows; caruncle absent"  (Flora of China online).

"Small annual prostrate herb, hispid, branches with opposite obliquely oblong obtuse crenulate leaves, glabrous or puberulent, coppery, about the size of leaves of Euphorbia prostrata; stipules elongate fimbriate; inflorescences minute axillary compound pubescent; cyathial gland small or none; capsule shortly stalked, seeds 4-angled, blunt, with 5 or 6 shallow transverse furrows.  Very similar to Euphorbia prostrata"  (Stone, 1970; p. 377).

Habitat/ecology:  In Hawai‘i, "sparingly naturalized in low elevation, dry, disturbed sites" (Wagner et al., 1999; pp. 615, 617, 1875).  In New Guinea, "a weed of nursery and garden beds, paths and house-yards. From low altitudes to almost 2000 m" (Henty & Pritchard, 1975; p. 101). "Occasional in sunny disturbed places" (Whistler, 1988; p. 18).

Propagation:  Seed

Native range:  "Mexico to Argentina, the West Indies and the Paleotropics" (Wagner et al.,1999; pp. 615, 617).

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
Ta‘u Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2001) (voucher ID: PTBG 34608)
Taxon name on voucher: Chamaesyce thymifolia (L.) Millsp.
Australia (Pacific offshore islands)
Lord Howe Island
Lord Howe Island introduced
Pickard, J. (1984) (p. 206)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Alamagan Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Alamagan Island introduced
invasive
Fosberg, F. R./Falanruw, M. V. C./Sachet, M.-H. (1975) (p. 30)
Vouchers cited: Falanruw 1950 (US), Fosberg 31714 (US)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Pagan Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Pagan Island introduced
invasive
Fosberg, F. R./Falanruw, M. V. C./Sachet, M.-H. (1975) (p. 30)
Vouchers cited: Anderson 515 (US), Fosberg 31364 (US, BISH)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Saipan Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Saipan Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1946) (voucher ID: PTBG 23847)
Taxon name on voucher: Euphorbia thymifolia
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Tinian Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Ecuador (Galápagos Islands)
Santa Cruz Group
Santa Cruz Island introduced
invasive
Charles Darwin Foundation (2008)
Federated States of Micronesia
Chuuk Islands
Dublon (Tonowas) Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Federated States of Micronesia
Chuuk Islands
Namonuito (Namonweito, Nómwun Wiité) Atoll introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Federated States of Micronesia
Chuuk Islands
Weno (Moen) Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Federated States of Micronesia
Kosrae Island
Kosrae Island introduced
invasive
Markin, George P. (1990) (p. 16)
Voucher cited: Lorence 9392 (PTBG)
Naturalized
Federated States of Micronesia
Kosrae Island
Kosrae Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1997) (voucher ID: PTBG 24881)
Taxon name on voucher: Euphorbia thymifolia (L.) C. F. Millspaugh
Federated States of Micronesia
Kosrae Island
Kosrae Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2005) (voucher ID: PTBG 44951)
Taxon name on voucher: Euphorbia thymifolia
Federated States of Micronesia
Pohnpei Islands
Pohnpei Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Federated States of Micronesia
Pohnpei Islands
Pohnpei Island   Glassman, S. F. (1952) (p. 70)
Voucher cited: Glassman 2870 (US)
Federated States of Micronesia
Pohnpei Islands
Pohnpei Island introduced
invasive
Herrera, Katherine/Lorence, David H./Flynn, Timothy/Balick, Michael J. (2010) (p. 86)
Vouchers cited: F.R. Fosberg 58512 (BISH), S.F. Glassman 2870 (BISH), D.H. Lorence 7912 (PTBG, US)
Naturalized
Federated States of Micronesia
Pohnpei Islands
Pohnpei Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1996) (voucher ID: PTBG 21218)
Taxon name on voucher: Euphorbia thymifolia (L.) C. F. Millspaugh
Federated States of Micronesia
Yap Islands
Fais Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Federated States of Micronesia
Yap Islands
Fais Island native
invasive
Fosberg, F. R./Evans, M. (1969) (p. 9)
Voucher cited: Evans 388 (US)
Federated States of Micronesia
Yap Islands
Ulithi Atoll introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Federated States of Micronesia
Yap Islands
Yap (Waqab) Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
French Polynesia
Gambier Islands
Makaroa Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
French Polynesia
Marquesas Islands
Fatu Hiva Island introduced
invasive
Florence, J. (1997) (p. 53)
French Polynesia
Marquesas Islands
Fatu Hiva Island introduced
invasive
Lorence, David H./Wagner, Warren L. (2013)
French Polynesia
Marquesas Islands
Fatu Hiva Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence, D.H. Lorence & W.L. Wagner 9467 (PAP)
Adventice
French Polynesia
Marquesas Islands
Fatu Hiva Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2003) (voucher ID: PTBG 39649)
Taxon name on voucher: Euphorbia thymifolia
French Polynesia
Marquesas Islands
Hiva Oa Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
French Polynesia
Marquesas Islands
Nuku Hiva (Nukahiva) Island introduced
invasive
Florence, J. (1997) (p. 53)
French Polynesia
Marquesas Islands
Nuku Hiva (Nukahiva) Island introduced
invasive
Lorence, David H./Wagner, Warren L. (2013)
French Polynesia
Marquesas Islands
Nuku Hiva (Nukahiva) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
French Polynesia
Marquesas Islands
Tahuata (Tuhuata) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
French Polynesia
Marquesas Islands
Ua Huka (Huahuna, Uahuka) Island introduced
invasive
Florence, J. (1997) (p. 53)
French Polynesia
Marquesas Islands
Ua Huka (Huahuna, Uahuka) Island introduced
invasive
Lorence, David H./Wagner, Warren L. (2013)
French Polynesia
Marquesas Islands
Ua Huka (Huahuna, Uahuka) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
French Polynesia
Marquesas Islands
Ua Pou (Huapu, Uapou, Uapu) Island introduced
invasive
Lorence, David H./Wagner, Warren L. (2013)
French Polynesia
Society Islands
Bora Bora Island introduced
invasive
Florence, J. (1997) (p. 53)
French Polynesia
Society Islands
Bora Bora Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence 12060 (PAP)
Adventice
French Polynesia
Society Islands
Huahine Island introduced
invasive
Florence, J. (1997) (p. 53)
French Polynesia
Society Islands
Huahine Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence & R. Tahuaitu 11637 (PAP)
Adventice
French Polynesia
Society Islands
Maupiti (Maurua) Island introduced
invasive
Fosberg, F. R./Sachet, M.-H. (1987) (p. 41)
Voucher cited: Fosberg 64901 (US)
French Polynesia
Society Islands
Maupiti (Maurua) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
French Polynesia
Society Islands
Mehetia (Mahetia, Meetia) Island introduced
invasive
Florence, J. (1997) (p. 53)
French Polynesia
Society Islands
Mehetia (Mahetia, Meetia) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Vouchers cited: J. Florence 10258 (PAP), J. Florence 10323 (PAP)
Adventice
French Polynesia
Society Islands
Mopelia (Mapetia, Maupiha‘a, Maupihoa, Mopiha‘a) Atoll introduced
invasive
Florence, J. (1997) (p. 53)
French Polynesia
Society Islands
Mopelia (Mapetia, Maupiha‘a, Maupihoa, Mopiha‘a) Atoll introduced
invasive
Sachet, M.-H. (1983) (p. 29)
Voucher cited: Sachet 956 (US)
French Polynesia
Society Islands
Mopelia (Mapetia, Maupiha‘a, Maupihoa, Mopiha‘a) Atoll introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
French Polynesia
Society Islands
Raiatea (Havai) Island introduced
invasive
Florence, J. (1997) (p. 53)
French Polynesia
Society Islands
Raiatea (Havai) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence 3678 (PAP)
Adventice
French Polynesia
Society Islands
Tahiti Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence 2454 (PAP)
Adventice
French Polynesia
Society Islands
Tahiti Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1981) (voucher ID: PTBG 37262)
Taxon name on voucher: Euphorbia thymifolia L.
French Polynesia
Tuamotu Archipelago
Makatea (Ma‘atea) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence 3084 (PAP)
Adventice
French Polynesia
Austral (Tubuai) Islands
Rimatara (Rimitara) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
French Polynesia
Austral (Tubuai) Islands
Tubuai Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
Guam
Guam Island
Guam Island introduced
invasive
Stone, Benjamin C. (1970) (p. 377)
Guam
Guam Island
Guam Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 615, 617)
Sparingly naturalized.
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Lorence, David H./Flynn, Timothy W./Wagner, Warren L. (1995) (p. 35)
Voucher cited: T. Flynn 4258a (PTBG)
State of Hawaii
Hawaiian Islands
Lāna‘i Island introduced
invasive
Oppenheimer, Hank L. (2003) (p. 11)
Voucher cited: Oppenheimer H40118 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Lorence, David H./Flynn, Timothy W./Wagner, Warren L. (1995) (p. 35)
East Maui. Voucher cited: T. Flynn 2584 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Oppenheimer, Hank L./Bartlett, R. T. (2000) (p. 5)
West Maui. Vouchers cited: Oppenheimer H99902 (BISH), Oppenheimer H99908 (BISH)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Oppenheimer, Hank L. (2003) (p. 11)
Voucher cited: Oppenheimer H70112 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 615, 617)
Sparingly naturalized.
Japan (offshore islands)
Ogasawara (Bonin) Islands
Bonin (Ogasawara) Islands introduced
Kato, Hidetoshi (2007)
Kiribati
Line Islands
Kiritimati (Christmas) Atoll   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1995) (voucher ID: PTBG 37272)
Taxon name on voucher: Chamaesyce thymifolia (L.) Millsp.
Kiribati
Tungaru (Gilbert) Islands
Tarawa Atoll introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Marshall Islands
Ralik Chain
Bikini (Pikinni) Atoll introduced
Fosberg, F. Raymond (1990) (p. 36)
As Euphorbia rubicunda Steud.
Marshall Islands
Ralik Chain
Enewetak (Ãnewetak, Eniwetok) Atoll introduced
invasive
Lamberson, J. O. (1982) (p. 37)
Marshall Islands
Ralik Chain
Enewetak (Ãnewetak, Eniwetok) Atoll introduced
invasive
St. John, Harold (1960) (p. 329)
Vouchers cited: Lane 57-143, Lane 57-130
Marshall Islands
Ralik Chain
Enewetak (Ãnewetak, Eniwetok) Atoll introduced
Fosberg, F. Raymond (1990) (p. 36)
As Euphorbia rubicunda Steud.
Marshall Islands
Ralik Chain
Jaluit (Jãlwõj) Atoll introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Marshall Islands
Ralik Chain
Jaluit (Jãlwõj) Atoll introduced
invasive
Fosberg, F. R./Sachet, M.-H. (1962) (p. 23)
Vouchers cited: Fosberg 39470 (US), Fosberg 41399 (US)
Marshall Islands
Ralik Chain
Kili (Kõle) Atoll introduced
invasive
Vander Velde, Nancy/Vander Velde, Brian (2006) (p. 8)
"Common; grassy and ruderal areas, at times in cracks of cement".
Marshall Islands
Ralik Chain
Kwajalein (Kuwajleen) Atoll introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Marshall Islands
Ralik Chain
Kwajalein (Kuwajleen) Atoll introduced
invasive
Whistler, W. A./Steele, O. (1999) (p. 49)
Vouchers cited: St. John 21655, Fosberg 34137, Fosberg 39494, Herbst 8884, Herbst 8920, Herbst 8940, Herbst 8976, Herbst 8997, Herbst 9010, Whistler 11271
Marshall Islands
Ralik Chain
Kwajalein (Kuwajleen) Atoll introduced
invasive
Fosberg, F. R. (1955) (p. 13)
Voucher cited: Fosberg 34137 (US)
Marshall Islands
Ralik Chain
Kwajalein (Kuwajleen) Atoll   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1990) (voucher ID: PTBG 47559)
Taxon name on voucher: Chamaesyce thymifolia (L.) Millsp.
Marshall Islands
Ralik Chain
Ujelang Atoll introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Marshall Islands
Ralik Chain
Ujelang Atoll introduced
invasive
Fosberg, F. R. (1955) (p. 13)
Voucher cited: Fosberg 34181 (US)
Marshall Islands
Ratak Chain
Arno Atoll introduced
invasive
Vander Velde, Nancy/Vander Velde, Brian (2007) (p. 7)
"Uncommon; in some lawns and ruderal areas".
Marshall Islands
Ratak Chain
Likiep Atoll introduced
Fosberg, F. Raymond (1990) (p. 36)
As Euphorbia rubicunda Steud.
Marshall Islands
Ratak Chain
Likiep Atoll introduced
Vander Velde, Nancy/Vander Velde, Brian (2009) (p. 1)
Voucher cited: Vander Velde 0511200902
Marshall Islands
Ratak Chain
Majuro (Mãjro) Atoll introduced
invasive
Vander Velde, Nancy (2003) (p. 92)
Marshall Islands
Ratak Chain
Maloelap Atoll   Imada, Clyde (2006)
Marshall Islands
Ratak Chain
Mili (Mile) Atoll introduced
invasive
Vander Velde, Nancy/Vander Velde, Brian (2010) (p. A15)
Abundant, cleared areas, fields, ruderal areas, Mili, Tokewa.
Marshall Islands
Ratak Chain
Utirik (Utrik, Utrõk) Atoll introduced
Fosberg, F. Raymond (1990) (p. 36)
As Euphorbia rubicunda Steud.
Marshall Islands
Ratak Chain
Wotje (Wõjjã) Atoll introduced
Fosberg, F. Raymond (1990) (p. 36)
As Euphorbia rubicunda Steud.
Palau
Palau (Belau ) (main island group)
Angaur (Ngeaur) Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Palau
Palau (Belau ) (main island group)
Angaur (Ngeaur) Island introduced
invasive
Space, James C./Waterhouse, Barbara/Miles, Joel E./Tiobech, Joseph/Rengulbai, Kashgar (2003) (p. 103)
Palau
Palau (Belau ) (main island group)
Babeldaob Island   Raulerson, L./Rinehart, A. F./Falanruw, M. C. (1996) (p. 28)
Palau
Palau (Belau ) (main island group)
Koror (Oreor) Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Palau
Palau (Belau ) (main island group)
Ngerkebesang Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
Palau
Rock Islands (Chelbacheb)
Ngchus Island introduced
invasive
Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 62)
Voucher: Lorence 9883 (PTBG, BNM, NY, US)
Palau
Rock Islands (Chelbacheb)
Ngchus Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2008) (voucher ID: PTBG 176)
Taxon name on voucher: Chamaesyce thymifolia (L.) Millsp.
Palau
Rock Islands (Chelbacheb)
Ngeremdiu Island introduced
invasive
Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 7)
Palau
Sonsorol Group
Pulo Ana Island   Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Palau
Sonsorol Group
Sonsorol Island   Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Papua New Guinea
Papua New Guinea (eastern New Guinea Island)
Papua New Guinea (eastern New Guinea Island) introduced
invasive
Henty, E. E./Pritchard, G. H. (1975) (p. 101)
From low altitudes to almost 2000 m.
Philippines
Philippine Islands
Philippine Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Philippines
Philippine Islands
Philippine Islands   Merrill, Elmer D. (1923) (p. 464)
In waste places, along roads and trails, in fallow rice paddies, etc.
Samoa
Western Samoa Islands
Upolu Island   Whistler, W. A. (1988) (p. 18)
Tonga
Tongatapu Group
Tongatapu Island   Whistler, W. A. (1992) (p. 22)
Voucher cited: Whistler 5178
Tuvalu
Tuvalu (Ellis) Islands
Tuvalu Islands   Swarbrick, John T. (1997) (p. 92)
United States (other Pacific offshore islands)
Wake Islands
Wake Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 139)
United States (other Pacific offshore islands)
Wake Islands
Wake Island introduced
Fosberg, F. R./Sachet, M.-H. (1969) (p. 10)
Voucher cited: Sachet 902 (US), not seen in 1963.
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Cambodia
Cambodia
Cambodia (Kingdom of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Costa Rica (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
El Salvador (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Guatemala (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Honduras (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Nicaragua (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Panama (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
China
China
China (People's Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Roadsides, grasslands, scrub, fields, very common. Fujian, Guangdong, Guangxi, Hainan, Hunan, Jiangsu, Jiangxi, Yunnan, Zhejiang.
China
China
Hong Kong native
Wu, Te-lin (2001) (p. 181)
In grassland along roadside.
Indonesia
Indonesia
Indonesia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Japan
Japan
Japan (country)   Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (pp. 158-159)
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 186)
Malaysia
Malaysia
Malaysia (country of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Mexico
Mexico
Mexico (United Mexican States) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Singapore
Singapore
Singapore (Republic of) uncertain if introduced
invasive
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 25)
Weed of uncertain origin
South America (Pacific rim)
South America (Pacific rim)
Colombia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
South America (Pacific rim)
South America (Pacific rim)
Perú (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Taiwan
Taiwan Island
Taiwan Island native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Roadsides, grasslands, scrub, fields, very common.
Thailand
Thailand
Thailand (Kingdom of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Vietnam
Vietnam
Vietnam (Socialist Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
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. 114)
British Indian Ocean Territory
Chagos Archipelago
Diego Garcia Island introduced
invasive
Whistler, W. Arthur (1996) (p. 27)
British Indian Ocean Territory
Chagos Archipelago
Diego Garcia Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1995) (voucher ID: PTBG 37924)
Taxon name on voucher: Chamaesyce thymifolia (L.) Millsp.
Comoros
Comoro Islands
Comoro Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Maldives
Maldive Islands
Maldive Islands   Fosberg, F. R. (1957) (p. 24)
Mauritius
Mautitius Islands (Mauritius and Rodrigues)
Mauritius Island native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Seychelles
Seychelles Islands
Cousin Island introduced
invasive
Fosberg, F. R. (1983) (p. 27)
Voucher cited: Fosberg 52030 (US)
Seychelles
Seychelles Islands
Frégate Island   Robertson, S. A./Todd, D. M. (1983) (p. 50)
Voucher cited: Robertson 2724
Seychelles
Seychelles Islands
Seychelles Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Also reported from
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
United States (continental except west coast)
United States (other states)
United States (other states) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
Louisiana
United States (continental except west coast)
United States (other states)
USA (Florida) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)


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This page was created on 1 JAN 1999 and was last updated on 1 NOV 2011.