Eucalyptus camaldulensis Dehnh., Myrtaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results: 

Reject, score: 12 (Go to the risk assessment (U.S.)).
Reject, score: 12 (Go to the risk assessment (U.S. (Florida))).

Other Latin names:  Eucalyptus longirostris F. Muell. ex Miq.; Eucalyptus rostrata Schltdl.

Common name(s): [more details]

Chinese: chi an

English: Murray red gum, blue gum, red gum, red river gum, river gum, river red gum

French: eucalyptus rouge

Spanish: eucalipto negro, eucalipto rojo

Habit:  tree

Description:  "Trees 20 -45 m tall, bark white, gray, brown, or red in patches, smooth throughout.  Adult leaves alternate, blades concolorous, lanceolate to narrowly lanceolate, 8-30 cm long, 0.7-2 cm wide, apex acuminate, petioles 12-15 mm long.  Flowers 7-11 in axillary, simple umbels, peduncles 6-15 mm long, pedicels 5-12 mm long; buds globose-rostrate or ovoid-conical, 6-9 mm long, 3-6 mm wide; operculum hemispherical, rostrate, or conical, apex obtuse.  Fruit hemispherical or ovoid, 5-8 mm long and wide, valves 3-5, exserted"  (Wagner et al., 1999; pp. 951-952).

Habitat/ecology:  In Hawai‘i, "extensively planted...and regenerating from seed at least within or near the plantations" (Wagner et al., 1999; pp. 951-952).

Propagation:  Seed

Native range:  "Native to much of mainland Australia, particularly in drier areas, often near watercourses" (Wagner et al., 1999; pp. 951-952).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Ecuador (Galápagos Islands) Santa Cruz Group	Santa Cruz Island	introduced cultivated	Charles Darwin Foundation (2008)
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) (pp. 951-952)
State of Hawaii Hawaiian Islands	Kaua‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 951-952)
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 951-952)
State of Hawaii Hawaiian Islands	Moloka‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 951-952)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 951-952)
Solomon Islands Solomon Islands	Solomon Islands	introduced cultivated	Hancock, I. R./Henderson, C. P. (1988) (p. 72)

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)	New South Wales	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Australia Australia (continental)	Australia (continental)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013) South Australia, Victoria, Western Australia
Australia Australia (continental)	Northern Territory	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Australia Australia (continental)	Queensland	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America Central America (Pacific rim)	Panama (Republic of)		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1970) (voucher ID: PTBG 32362) Taxon name on voucher: Eucalyptus camaldulensis Dehnh.
China China	China (People's Republic of)	introduced cultivated	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013) Cultivated in Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Sichuan, Yunnan, and Zhejiang.
China China	Hong Kong	introduced cultivated	Wu, Te-lin (2001) (p. 162)
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)

Indian Ocean
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Seychelles Seychelles Islands	Cousin Island	introduced cultivated	Fosberg, F. R. (1983) (p. 30) Vouchers cited: Fosberg 52137 (US), Fosberg 52150 (US)
Seychelles Seychelles Islands	Seychelles Islands	introduced	Invasive Species Specialist Group (2017)

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

Control:  If you know of control methods for Eucalyptus camaldulensis, please let us know.