Pacific Island Ecosystems at Risk (PIER)

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Eucalyptus globulus
Labill., Myrtaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  High risk, score: 10 (Go to the risk assessment)

Common name(s): [more details]

Chinese: lan an

English: blue gum, southern blue gum, Tasmanian blue gum, Victorian blue gum

French: eucalyptus globuleux, gommier bleu

Spanish: eucalipto, eucalipto azul

Habit:  tree

Description:  "Trees 15-70 m tall, bark white, cream, yellow, or gray in patches, smooth throughout, often with accumulated shedding bark near base.  Adult leaves alternate, blades concolorous, lanceolate to narrowly lanceolate, 12-28 cm long, 1.2-3 cm wide, apex acuminate, petioles 20-30 mm long.  Flowers 1-7 in axillary, simple umbels, peduncles 0-25 mm long, pedicels 0-8 mm long; buds turbinate to obconical, verrucose, glaucous, 8-27 mm long, 5-17 mm wide; operculum low-hemispherical, slightly rostrate.  Fruit obconical to hemispherical, glaucous, 5-21 mm long, 6-24 mm wide, valves 3-5, level or exserted"  (Wagner et al., 1999; p. 954).

Habitat/ecology:  "Grass- and heathland, forests, riparian habitats.  This fast growing tree grows in a wide range of soils.  The tree competes for water and light, and produces large quantities of litter preventing the establishment of native species and posing a fire hazard.  Forests dominated by this tree are species poor.  The tree's high water consumption leads to decreased soil moisture contents"  (Weber, 2003; p. 163).

In Hawai‘i, "extensively planted..., spreading or at least regenerating from seed" (Wagner et al., 1999; p. 954).

Propagation:  Seed

Native range:  Australia (Wagner et al., 1999; p. 954).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
cultivated
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. 553)
Chile (offshore islands)
Juan Fernández Islands
Isla Más Afuera (Alejandro Selkirk Island) introduced
invasive
cultivated
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. 553)
Ecuador (Galápagos Islands)
Isabela Group
Isabela Island introduced
cultivated
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Volcán Sierra Negra, Isabela Island introduced
cultivated
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
San Cristóbal Group
San Cristóbal Island introduced
cultivated
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Santa Cruz Group
Santa Cruz Island introduced
cultivated
Charles Darwin Foundation (2008)
Federated States of Micronesia
Pohnpei Islands
Pohnpei Island introduced
cultivated
Herrera, Katherine/Lorence, David H./Flynn, Timothy/Balick, Michael J. (2010) (p. 116)
French Polynesia
Society Islands
Tahiti Island   Fosberg, F. R. (1997) (p. 81)
French Polynesia
Society Islands
Tahiti Island introduced
cultivated
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Cultivée
Guam
Guam Island
Guam Island introduced
Raulerson, L. (2006) (p. 51)
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
cultivated
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 954)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
cultivated
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 954)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
cultivated
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 954)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
cultivated
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 954)
New Zealand (offshore islands)
Kermadec Islands
Raoul Island introduced
cultivated
Sykes, W. R. (1977) (p. 118)
Relic of cultivation.
Palau
Palau (Belau ) (main island group)
Babeldaob Island introduced
Raulerson, L./Rinehart, A. F./Falanruw, M. C. (1996) (p. 32)
Palau
Palau (Belau ) (main island group)
Palau Islands (main island group) introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 188)
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) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Tasmania, Victoria
Australia
Australia (continental)
New South Wales native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
China
China
China (People's Republic of) introduced
cultivated
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Cultivated in Fujian, Guangxi, Guizhou, Jiangxi, Sichuan, Yunnan, and Zhejiang.
Costa Rica
Costa Rica
Costa Rica (Republic of) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
Ecuador (Mainland)
Ecuador
Ecuador (Republic of) (continental) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
El Salvador
El Salvador
El Salvador (Republic of) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
Guatemala
Guatemala
Guatemala (Republic of) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
New Zealand
New Zealand
New Zealand (country) introduced
invasive
cultivated
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 857)
"Near wind-breaks and plantations in scrub and herbaceous vegetation, especially on roadside banks".
Panama
Panama
Panama (Republic of) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
Perú
Perú
Perú (Republic of) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
Singapore
Singapore
Singapore (Republic of) introduced
cultivated
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 40)
Cultivated only
Taiwan
Taiwan Island
Taiwan Island introduced
cultivated
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
United States (west coast)
United States (west coast states)
USA (California) introduced
invasive
Cronk, Q. C. B./Fuller, J. L. (2001) (p. 156)

Comments:  Reported as possibly an invasive plant in the Galápagos Islands per Charles Darwin Research Station.

Control:  Additional control information from the Bugwood Wiki.

Physical:  "Stumps may be ground to a depth of 20-30 cm below the soil surface to prevent resprouting".

Chemical:  "Since the tree easily resprouts, cut stumps must be treated immediately with herbicides such as glyphosate, or sprouts must be regularly removed over several years"  (Weber, 2003; p. 154).


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This page was created on 21 OCT 2004 and was last updated on 20 MAR 2012.