Pacific Island Ecosystems at Risk (PIER)

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Stellaria media
(L.) Vill., Caryophyllaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Reject, score: 25 (Go to the risk assessment).

Common name(s): [more details]

Chinese: fan lu

English: chick weed, common chickweed, satin-flower, starwort, stitchwort

French: morgéline, mouron des oiseaux, stellaire intermédiaire

Japanese: hakobe, kohakobe

Spanish: bocado de gallina, borrisol, morrons, pamplina, pararera, picagallina, quilloi quilloi, revola, yerba gallinera

Habit:  herb

Description:  "Slender annual or perennial herbs; stems trailing, matted, or weakly ascending, 1-8 dm long, pubescent in lines.  Leaves ovate to elliptic, (0.5-) 1-3 (-4) cm long, (0.3-) 0.8-1.5 (-2) cm wide, base rounded to cuneate, petioles 0-2 cm long, often ciliate.  Pedicels ascending to recurved; sepals 3.5-6 mm long, villous, apex obtuse to acute; petals slightly shorter than the sepals, 2-cleft, or sometimes absent; stamens 3-10.  Capsules ovoid, 3.5-7 mm long.  Seeds reddish brown, suborbicular, 1-1.1 mm long, papillose"  (Wagner et al., 1999; pp. 526-528).

Habitat/ecology:  "Found in cultivated fields, pastures, gardens, shady lawns, roadsides, and neglected lands.  Because it prefers cool, moist, shady places, it thrives in orchards, nurseries of all kinds, vineyards, and under shrubs and trees.  [It] will grow on a very wide range of soils, but it prefers a neutral pH and does not like acid conditions.  It makes a very luxuriant growth when nitrogen is plentiful" (Holm et al., 1977; p. 452). In Hawai‘i, "naturalized primarily in mesic sites, 50-3,950 m" (Wagner et al., 1999; pp. 526-528).  "In Chile this species grows in the following environmental conditions:  Low altitude, interior valleys; coastal mountains, 500-2000 m; coastal areas, 0-500 m.  Humid areas, with almost constant rainfall, short dry periods are possible (generally not longer than 1 month); somewhat dry areas where the drought may last 3-5 months, precipitations of 400-800 mm. are concentrated in winter.  Fully exposed to the sun, level areas or slopes facing north; some shadow, some protection against direct sunlight, some shadow from vegetation, filtering about 20-40% of light"  (Chileflora).

Propagation:  Seed

Native range:  "Eurasia, widely naturalized" (Wagner et al., 1999; pp. 526-528).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia (Pacific offshore islands)
Lord Howe Island
Lord Howe Island introduced
Pickard, J. (1984) (p. 206)
Australia (Pacific offshore islands)
Lord Howe Island
Lord Howe Island introduced
invasive
Orchard, Anthony E., ed. (1994) (p. 19)
"A common weed of cultivated and disturbed soil". Vouchers cited: A.N. Rodd 1479 (K, NSW), G. Uhe 1260 (K)
Australia (Pacific offshore islands)
Norfolk Islands
Norfolk Island introduced
invasive
Orchard, Anthony E., ed. (1994) (p. 8)
"A common weed of cultivated and disturbed soil". Vouchers cited: G. Uhe 1112 (K), P.S. Green 2398 (K)
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
Skottsberg, Carl (1953) (p. 217)
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 558)
Chile (offshore islands)
Juan Fernández Islands
Isla Más Afuera (Alejandro Selkirk Island) introduced
Skottsberg, Carl (1953) (p. 217)
Chile (offshore islands)
Juan Fernández Islands
Isla Más Afuera (Alejandro Selkirk Island) introduced
invasive
Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands)
Juan Fernández Islands
Isla Más Afuera (Alejandro Selkirk Island) introduced
invasive
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 558)
Chile (offshore islands)
Juan Fernández Islands
Morro El Verdugo introduced
invasive
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 558)
Ecuador (Galápagos Islands)
Floreana Group
Floreana Island introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Isabela Island introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Volcán Sierra Negra, Isabela Island introduced
invasive
Charles Darwin Foundation (2008)
French Polynesia
Austral (Tubuai) Islands
Rapa Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 526-528)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 526-528)
State of Hawaii
Hawaiian Islands
Kure Atoll introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 526-528)
State of Hawaii
Hawaiian Islands
Kure Atoll introduced
invasive
Starr, Forest/Martz, Kim/Loope, Lloyd (2001) (p. 17)
Uncommon around quarters and edge of runway.
State of Hawaii
Hawaiian Islands
Lāna‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 526-528)
Voucher cited: Munro 488 (BISH)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 526-528)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Oppenheimer, Hank (2010) (p. 34)
Voucher cited: Oppenheimer H90813 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 526-528)
Japan (offshore islands)
Ogasawara (Bonin) Islands
Bonin (Ogasawara) Islands introduced
Kato, Hidetoshi (2007)
New Caledonia
Récifs D'Entrecasteaux (D'Entrecasteaux Reefs)
Île Huon introduced
cultivated
MacKee, H. S. (1994) (p. 28)
Voucher cited: Denizot s.n.
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
cultivated
MacKee, H. S. (1994) (p. 28)
Vouchers cited: Pancher s.n. (1862), MacKee 4968, MacKee 40671
New Caledonia
New Caledonia Archipelago
Île des Pins (Isle of Pines) introduced
cultivated
MacKee, H. S. (1994) (p. 28)
Vouchers cited: Baumann 13920, MacKee 33819
Papua New Guinea
Papua New Guinea (eastern New Guinea Island)
Papua New Guinea (eastern New Guinea Island) introduced
invasive
Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 452)
Philippines
Philippine Islands
Philippine Islands introduced
invasive
Merrill, Elmer D. (1923) (p. 138)
In waste places, altitude 1,500 to 2,300 m. Unquestionable a recently introduced plant.
Pitcairn Islands
Pitcairn Islands
Pitcairn Island introduced
St. John, H. (1987) (p. 33)
Pitcairn Islands
Pitcairn Islands
Pitcairn Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
United States (other Pacific offshore islands)
Midway Atoll
Midway Atoll introduced
invasive
Starr, Forest/Starr, Kim/Loope, Lloyd L. (2003) (p. 26)
Voucher cited: Starr & Martz 010520-2 (BISH)
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)
Queensland introduced
invasive
Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 452)
Chile (continental)
Chile
Chile (Republic of) introduced
invasive
Belov, Michail (2013)
China
China
China (People's Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
"Fields".
China
China
China (People's Republic of)   Li-ying, Li/Ren, Wang/Waterhouse, D. F. (1997) (p. 174)
China
China
Hong Kong native
Wu, Te-lin (2001) (p. 82)
Colombia
Colombia
Colombia (Republic of) introduced
invasive
Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 452)
Indonesia
Indonesia
Indonesia (Republic of) introduced
invasive
Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 452)
Japan
Japan
Japan (country) introduced
invasive
Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 452)
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 182)
South Korea
South Korea
South Korea (Republic of) introduced
invasive
Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 452)
Mexico
Mexico
Mexico (United Mexican States) introduced
invasive
Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 452)
New Zealand
New Zealand
New Zealand (country) introduced
invasive
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 508)
"Grassland, waste land, roadsides, coastal sandy sites, damp sites, cultivated land, disturbed stony sites, riverbeds".
Taiwan
Taiwan Island
Taiwan Island   Li-ying, Li/Ren, Wang/Waterhouse, D. F. (1997) (p. 174)
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
La Réunion (France)
La Réunion Island
La Réunion Island introduced
invasive
Comité français de l'Union Internationale pour la Conservation de la Nature en France (2013)
Envahissant principalement dans les milieux perturbés.
Mauritius
Mautitius Islands (Mauritius and Rodrigues)
Mauritius Island introduced
invasive
Holm, Leroy G./Plucknett, D. L./Pancho, J. V./Herberger, J. P. (1977) (p. 452)


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This page was created on 29 JUN 2004 and was last updated on 9 JAN 2011.