Eucalyptus robusta Sm., Myrtaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Low risk (based on second screen), score: 3 (Go to the risk assessment)

Other Latin names:  Eucalyptus multiflora Poir.

Common name(s): [more details]

English: robust eucalyptus, swamp mahogany

Habit:  tree

Description:  "Trees 20-30 m tall, bark reddish brown, rough, soft, spongy throughout.  Adult leaves alternate, blades discolorous, broadly lanceolate, 10-16 cm long, 2.7-4.5 cm wide, apex acuminate, petioles 20-35 mm long.  Flowers 9-15 in axillary, simple umbels, peduncles broadly flattened, 13-30 mm long, pedicels 1-9 mm long; buds rostrate or fusiform, 16-19 mm long, 6-8 mm wide; operculum conical, rostrate.  Fruit cylindrical, 10-18 mm long, 6-11 mm wide, valves 3-4, included and coherent across orifice"  (Wagner et al., 1999; p. 957).

Habitat/ecology:  In Hawai‘i, "planted, often as windbreaks...and regenerating from seed in and near these areas" (Wagner et al., 1999; p. 957).

Propagation:  Seed

Native range:  "Native to coastal areas of southeastern Queensland to southern coast of New South Wales, Australia" (Wagner et al., 1999; p. 957).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
French Polynesia Society Islands	Raiatea (Havai) Island		Fosberg, F. R. (1997) (p. 81)
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 957)
State of Hawaii Hawaiian Islands	Kaua‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 957)
State of Hawaii Hawaiian Islands	Lāna‘i Island	introduced cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 957) Voucher cited: Munro 501 (BISH)
State of Hawaii Hawaiian Islands	Lāna‘i Island	introduced invasive cultivated	Oppenheimer, Hank (2007) (p. 28) Voucher cited: Oppenheimer & K.R. Wood H80621 (BISH, PTBG) Naturalized in most locations where previously planted.
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 957)
State of Hawaii Hawaiian Islands	Moloka‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 957)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 957)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced cultivated	MacKee, H. S. (1994) (p. 105) Vouchers cited: Veillon 1212, MacKee 40276

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	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 957)
Australia Australia (continental)	Queensland	native	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 957)

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	Kueffer, C./Lavergne, C. (2004) (p. 5)

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 and Florida) United States (other states)	USA (Florida)	introduced	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2009)

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

Information about Eucalyptus robusta as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

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

Other Latin names:  Eucalyptus multiflora Poir.

References:

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

Kueffer, C./Lavergne, C. 2004. Case studies on the status of invasive woody plant species in the western Indian Ocean. 4. R233;union. Food and Agriculture Organization of the United Nations, Forestry Department, Forest Resources Division, Forest Resources Development Service, Working Paper FBS/4-4E. 37 pp.

MacKee, H. S. 1994. Catalogue des plantes introduites et cultivées en Nouvelle-Calédonie. Muséum National d'Histoire Naturelle, Paris, 164 p.

Oppenheimer, Hank. 2007. New plant records from Moloka‘i, Lāna‘i, Maui, and Hawai‘i for 2006. In: Evenhuis, Neal L. and Eldredge, Lucias G., eds. Records of the Hawaii Biological Survey for 2006. Part 2: Notes. Bishop Museum Occasional Papers 96:17-34.

U. S. Government. 2009. Integrated Taxonomic Information System (ITIS) (on-line resource).

U.S. Dept. Agr., Nat. Res. Cons. Serv. 2009. The PLANTS Database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. 1999. Manual of the flowering plants of Hawaii. Revised edition. Bernice P. Bishop Museum special publication. University of Hawai‘i Press/Bishop Museum Press, Honolulu. 1919 pp. (two volumes).