Eucalyptus gunnii Hook. f., Myrtaceae

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Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 2 (Go to the risk assessment)

Common name(s): [more details]

English: cider gum

Habit:  tree

Description:  "Tree to c. 10 m high; bark rough and sometimes persistent at base, otherwise trunk smooth and grey. Juvenile leaves opposite for many pairs, sessile, very glaucous, suborbicular to broad-ovate; base cordate; apex obtuse or acute. Adult leaves with petioles 1-2.5 cm long; lamina 4-10 x 1-2.5 cm, oblong-lanceolate or oblong-elliptic, subcoriaceous, green or ± glaucous, concolorous; lateral veins diverging at c. 45° to midrib; base symmetric; apex usually acute or mucronate. Flowers axillary, in clusters of 3; peduncles 5-10 mm long, flattened; pedicels short. Buds 7-8 mm long, ± clavate, glaucous; operculum hemispheric, much < hypanthium. Stamens white; anthers oblong. Fruit shortly pedicellate, 5-9 x c. 6 mm, cylindric-urceolate, with truncate apex, glaucous; valves 4, deeply sunken; disc narrow, descending"  (Webb et al., 1988; 858).

Habitat/ecology:  In New Zealand, "around gardens and farm shelter belts. A notably cold-hardy species which has been widely planted in cooler parts of N. Z., particularly in eastern and southern parts of the South Island where it thrives to about 700 m. It is mainly grown for farm shelter and as an ornamental"  (Webb et al., 1988; 858).

Propagation:  Seed

Native range:  Tasmania, Australia (GRIN).

Presence:

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. (2011) Tasmania
New Zealand New Zealand	New Zealand (country)	introduced invasive cultivated	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 858)

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

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

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

References:

U.S. Dept. Agr., Agr. Res. Serv. 2011. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. 1988. Flora of New Zealand, Volume IV: Naturalised pteridophytes, gymnosperms, dicotyledons. Botany Division, DSIR, Christchurch. 1365 pp.